Liliales is an
order of
monocotyledonous
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...
s in the
Angiosperm Phylogeny Group and
Angiosperm Phylogeny Web system
A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its open system (systems theory), environment, is described by its boundaries, str ...
, within the
lilioid monocots. This order of necessity includes the
family
Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Liliaceae. The
APG III system (2009) places this order in the
monocot clade
In biology, a clade (), also known as a Monophyly, monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach t ...
. In APG III, the family
Luzuriagaceae is combined with the family
Alstroemeriaceae and the family
Petermanniaceae is recognized. Both the order Lililiales and the family Liliaceae have had a widely disputed history, with the
circumscription varying greatly from one taxonomist to another. Previous members of this order, which at one stage included most monocots with conspicuous
tepals
A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of ve ...
and lacking
starch
Starch or amylum is a polymeric carbohydrate consisting of numerous glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants for energy storage. Worldwide, it is the most common carbohydrate in human diet ...
in the
endosperm
The endosperm is a tissue produced inside the seeds of most of the flowering plants following double fertilization. It is triploid (meaning three chromosome sets per nucleus) in most species, which may be auxin-driven. It surrounds the Embryo#Pla ...
are now distributed over three orders, Liliales,
Dioscoreales and
Asparagales, using predominantly
molecular phylogenetics
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...
. The newly delimited Liliales is
monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria:
# the grouping contains its own most recent co ...
, with ten families. Well known plants from the order include ''
Lilium
''Lilium'' ( ) is a genus of Herbaceous plant, herbaceous flowering plants growing from bulbs, all with large and often prominent flowers. Lilies are a group of flowering plants which are important in culture and literature in much of the world ...
'' (lily),
tulip
Tulips are spring-blooming perennial herbaceous bulbiferous geophytes in the ''Tulipa'' genus. Their flowers are usually large, showy, and brightly coloured, generally red, orange, pink, yellow, or white. They often have a different colour ...
, the North American wildflower ''
Trillium'', and
greenbrier.
Thus circumscribed, this order consists mostly of
herbaceous
Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials.
Definitions of "herb" and "herbaceous"
The fourth edition of ...
plants, but
lianas and
shrubs
A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...
also occur. They are mostly
perennial plant
In horticulture, the term perennial (''wikt:per-#Prefix, per-'' + ''wikt:-ennial#Suffix, -ennial'', "through the year") is used to differentiate a plant from shorter-lived annual plant, annuals and biennial plant, biennials. It has thus been d ...
s, with food
storage organs such as
corms or
rhizome
In botany and dendrology, a rhizome ( ) is a modified subterranean plant stem that sends out roots and Shoot (botany), shoots from its Node (botany), nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from ...
s. The family
Corsiaceae is notable for being
heterotrophic.
The order has worldwide distribution. The larger families (with more than 100 species) are roughly confined to the
Northern Hemisphere
The Northern Hemisphere is the half of Earth that is north of the equator. For other planets in the Solar System, north is defined by humans as being in the same celestial sphere, celestial hemisphere relative to the invariable plane of the Solar ...
, or are distributed worldwide, centering on the north. On the other hand, the smaller families (with up to 10 species) are confined to the
Southern Hemisphere, or sometimes just to
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
or
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...
. The total number of species in the order is now about 1768.
As with any
herb
Herbs are a widely distributed and widespread group of plants, excluding vegetables, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal purposes, or for fragrances. Culinary use typically distingu ...
aceous group, the
fossil
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserve ...
record of the Liliales is rather scarce. There are several species from the
Eocene
The Eocene ( ) is a geological epoch (geology), epoch that lasted from about 56 to 33.9 million years ago (Ma). It is the second epoch of the Paleogene Period (geology), Period in the modern Cenozoic Era (geology), Era. The name ''Eocene'' comes ...
, such as ''Petermanniopsis anglesaensis'' or ''Smilax'', but their identification is not definite. Another known fossil is ''Ripogonum scandens'' from the
Miocene
The Miocene ( ) is the first epoch (geology), geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and mea ...
. Due to the scarcity of data, it seems impossible to determine precisely the age and the initial distribution of the order. It is assumed that the Liliales originate from the Lower
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
, over 100 million years ago. Fossil aquatic plants from the
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
of northeastern Brazil and a new terrestrial species placed in the new genus ''
Cratosmilax'' suggest that the first species have appeared around 120 million years ago when the continents formed Pangea, before dispersing as Asia, Africa and America. The initial diversification to the current families took place between 82 and 48 million years ago. The order consists of 10 families, 67 genera and about 1,768 species.
Description
The Liliales are a diverse
order of predominantly
perennial
In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...
erect or twining
herbaceous
Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials.
Definitions of "herb" and "herbaceous"
The fourth edition of ...
and
climbing plants. Climbers, such as the herbaceous ''
Gloriosa'' (Colchicaceae) and ''
Bomarea'' (Alstroemeriaceae), are common in the Americas in
temperate
In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ran ...
and
tropical
The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...
zones, while most species of the subtropical and tropical genus ''
Smilax'' (Smilacaceae) are herbaceous or woody climbers and comprise much of the vegetation within the Liliales range. They also include
woody shrubs
A shrub or bush is a small to medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple ...
, which have fleshy
stems and underground
storage or
perennating organs, mainly
bulbous geophytes, sometimes
rhizomatous or
cormous.
Leaves
A leaf (: leaves) is a principal appendage of the stem of a vascular plant, usually borne laterally above ground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, ...
are elliptical and straplike with
parallel venation or ovate with palmate veins and
reticulate minor venation (Smilacaceae). In ''
Alstroemeria'' and ''
Bomarea'' (Alstroemeriaceae) the leaves are
resupinate (twisted).
The
flowers are highly variable, ranging in size from the small green
actinomorphic (radially symmetric) blooms of ''Smilax'' to the large showy ones found in ''
Lilium
''Lilium'' ( ) is a genus of Herbaceous plant, herbaceous flowering plants growing from bulbs, all with large and often prominent flowers. Lilies are a group of flowering plants which are important in culture and literature in much of the world ...
'', ''
Tulipa
Tulips are spring-blooming perennial herbaceous bulbiferous geophytes in the ''Tulipa'' genus. Their flowers are usually large, showy, and brightly coloured, generally red, orange, pink, yellow, or white. They often have a different coloured ...
'' and ''
Calochortus'' (Liliaceae) and ''
Lapageria
''Lapageria'' is a genus of flowering plants with only one known species, ''Lapageria rosea'', commonly known as Chilean bellflower or copihue (''copeewueh'', from Mapudungun ''kopiwe''). ''Lapageria rosea'' is endemic to Chile and it is the Flo ...
'' (Philesiaceae).
Sepals and
petals are undifferentiated from each other, and known as
tepals
A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undifferentiated (i.e. of ve ...
, forming a
perianth
The perianth (perigonium, perigon or perigone in monocots) is the non-reproductive part of the flower. It is a structure that forms an envelope surrounding the sexual organs, consisting of the calyx (sepals) and the corolla (petals) or tepal ...
. They are usually large and pointed and may be variegated in ''
Fritillaria'' (Liliaceae).
Nectaries may be perigonal (at base of tepals) but not septal (on
ovaries
The ovary () is a gonad in the female reproductive system that produces ova; when released, an ovum travels through the fallopian tube/oviduct into the uterus. There is an ovary on the left and the right side of the body. The ovaries are endocr ...
). Perigonal nectaries may be a simple secretory epidermal region at the tepal bases (''
Lapageria
''Lapageria'' is a genus of flowering plants with only one known species, ''Lapageria rosea'', commonly known as Chilean bellflower or copihue (''copeewueh'', from Mapudungun ''kopiwe''). ''Lapageria rosea'' is endemic to Chile and it is the Flo ...
'') or small, depressed regions fringed with hairs, often with glandular surface protuberances, at the bases of the inner tepals (''
Calochortus''), while in ''
Tricyrtis'' the tepals become bulbous or spur-like at the base, forming a nectar-containing sac. Ovaries may be inferior or superior, the style often long and
stigma capitate (pin headed). In a number of taxa there are three separate styles, particularly some Melanthiaceae ''s.l.'' (e.g. ''
Helonias'', ''
Trillium'', ''
Veratrum'') and ''
Chionographis''. The outer
integument epidermis of the
seed coat is cellular, and the
phytomelanin pigment is lacking. The inner integument is also cellular and these features are
plesiomorphic.
The Liliales are characterised by (
synapomorphies) the presence of nectaries at the base of the tepals (perigonal nectaries) or
stamen
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10
Morphology and terminology
A stamen typically consists of a stalk called the filament ...
filaments (''
Colchicum
''Colchicum'' ( or ) is a genus of perennial plant, perennial flowering plants containing around 160 species which grow from bulb-like corms. It is a member of the botanical family (biology), family Colchicaceae, and is native plant, native to ...
'', ''
Androcymbium'') most taxa but the absence of septal nectaries, together with
extrorse (outward opening) anthers. This distinguishes them from the septal nectaries and introrse anthers that are the features of most other
monocots. Exceptions are some Melanthiaceae in which nectaries are absent or septal and anthers that are introrse (dehiscence directed inwards) in Campynemataceae, Colchicaceae, and some Alstroemeriaceae, Melanthiaceae, Philesiaceae, Ripogonaceae and Smilacaceae. Tepals are largely three-traced in net-veined taxa of Liliales (e.g. ''
Clintonia'', ''
Disporum''), distinguishing them from the single-traced Asparagales, and is associated with the presence of tepal nectaries, presumably to supply them. The presence of separate styles is also a distinguishing feature from Asparagales, where it is rare.
Phytomelan is completely absent in Liliales seed coats, unlike Asparagales, which nearly all contain it.
Phytochemistry
The stems contain
fructan
A fructan is a polymer of fructose molecules. Fructans with a short chain length are known as fructooligosaccharides. Fructans can be found in over 12% of the angiosperms including both monocots and dicotyledon, dicots such as agave, artichokes, a ...
s, the plants also contain
chelidonic acid,
saponins, while some species contain
velamen. The
epicuticular wax
Epicuticular wax is a waxy coating which covers the outer surface of the plant cuticle in land plants. It may form a whitish film or bloom on leaves, fruits and other plant organs. Chemically, it consists of hydrophobic organic compounds, mainly ...
is of the Convallaria type, consisting of parallel orientated platelets.
Genome
The order includes
taxa
In biology, a taxon (back-formation from ''taxonomy''; : taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and ...
with some of the largest
genomes among
Angiosperms, particularly
Melanthiaceae
Melanthiaceae, also called the bunchflower family, is a family (biology), family of flowering plant, flowering herbaceous perennial plants native to the Northern Hemisphere. Along with many other lilioid monocots, early authors considered member ...
,
Alstroemeriaceae and
Liliaceae.
Taxonomy
With 11
families, about 67
genera
Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses. In binomial nomenclature, the genus name forms the first part of the binomial s ...
and about 1,558
species
A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
, Liliales is a relatively small
angiosperm
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed within a fruit ...
order, but a large group within the monocotyledons.
History
Origins
The
botanical authority for Liliales is given to
Perleb (1826), who grouped eleven families (
Asparageae,
Pontederiaceae,
Asphodeleae,
Coronariae,
Colchicaceae
Colchicaceae is a family of flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; ...
,
Dioscoreaceae,
Hypoxideae,
Amaryllideae,
Haemodoraceae,
Burmanniaceae,
Irideae) into an order he called Liliaceae. In Perleb's system, he divided the
vascular plants into seven classes, of which the
Phanerogamicae or seed plants he called his class IV, or Ternariae. The latter, he divided into five orders (''ordo''), including the Liliaceae.
A number of later
taxonomist
In biology, taxonomy () is the science, scientific study of naming, defining (Circumscription (taxonomy), circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxon, taxa (si ...
s, such as Endlicher (1836) substitituted the term Coronarieae for this higher order, including six subordinate taxa. Endlicher divided the
Cormophyta into five sections, of which Amphibrya contained eleven classes, including Coronarieae. The term Liliales was introduced by
Lindley (1853), referring to these higher orders as
alliances. Lindley included four families in this alliance. Lindley called the monocots class Endogenae, with eleven alliances including Liliales. Although
Bentham (1877) restored Coronariae as one of seven
Series making up the
monocotyledons, it was replaced by Liliiflorae and then Liliales in subsequent publications (''see
Table for history'').
Phyletic systems
Subsequent authors, now adopting a
phylogenetic
In biology, phylogenetics () is the study of the evolutionary history of life using observable characteristics of organisms (or genes), which is known as phylogenetic inference. It infers the relationship among organisms based on empirical dat ...
(phyletic) or
evolutionary
Evolution is the change in the heritable characteristics of biological populations over successive generations. It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certa ...
approach over the natural method, did not follow Bentham's nomenclature.
Eichler Several people are named Eichler:
* August W. Eichler (1839–1887), German botanist
* Caroline Eichler (1808/9–1843), German inventor, first woman to be awarded a patent (for her leg prosthesis)
* Eunice Eichler (1932–2017), New Zealand Salvat ...
(1886) used Liliiflorae for the higher order including Liliaceae, placing it as the first order (''Reihe'') in his class monocotyledons, as did
Engler (1903),
Lotsy (1911), and
Wettstein in 1924, in class Monocotyledones, subdivision Angiospermae.
Hutchinson (1973) restored Liliales for the higher rank, an approach that has been adopted by most major classification systems onwards, reserving Liliiflorae for higher ranks. These include
Cronquist (1981),
Dahlgren (1985),
Takhtajan (1997) as well as
Thorne and
Reveal (2007).
Hutchinson (1973) derived a more elaborate hierarchy, placing order Liliales as one of 14 in division Corolliferae, one of three divisions of
subphylum
In zoological nomenclature, a subphylum is a taxonomic rank below the rank of phylum.
The taxonomic rank of " subdivision" in fungi and plant taxonomy is equivalent to "subphylum" in zoological taxonomy. Some plant taxonomists have also used th ...
monocotyledons.
Cronquist (1981) placed the order Liliales as one of two in subclass
Liliidae, one of five in the class
Liliopsida (monocotyledons) of division
Magnoliophyta (angiosperms).
Dahlgren (1985) made Liliales one of six orders in Superorder Liliiflorae, one of ten divisions of the monocots.
Takhtajan (1997) had a more complex system of higher taxonomic ranks, placing Liliales as one of 15 orders within
superorder Lilianae, one of four within subclass
Liliidae. Liliidae in turn was one of four subclasses in class
Liliopsida (monocots). In contrast
Thorne and Reveal (2007) abandoned the use of monocotyledons as a distinct taxon, replacing it with 3 separate subclasses of Magnoliopsida (angiosperms), of which
Liliidae consists of 3 superorders, placing Liliales in superorder
Lilianae.
In all these systems, Liliales (or Liliiflorae) were visualised as either a direct division of the monocots (or equivalent) or were placed in an intermediate division of the monocots, such as superorder Lilianae.
Molecular phylogenetic systems
The development of
molecular phylogenetic
Molecular phylogenetics () is the branch of phylogeny that analyzes genetic, hereditary molecular differences, predominantly in DNA sequences, to gain information on an organism's evolutionary relationships. From these analyses, it is possible to ...
methods for determining
taxonomic circumscription and
phylogeny
A phylogenetic tree or phylogeny is a graphical representation which shows the evolutionary history between a set of species or Taxon, taxa during a specific time.Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, M ...
led to considerable revision of angiosperm classification, and establishment of Liliales as a
monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria:
# the grouping contains its own most recent co ...
group. It was clear by 1996, that the most useful system to date, that of Dahlgren, required urgent revision. The new classification was formalised with the creation of the
Angiosperm Phylogeny Group (APG) system (1998–2016), based on
monophyletic
In biological cladistics for the classification of organisms, monophyly is the condition of a taxonomic grouping being a clade – that is, a grouping of organisms which meets these criteria:
# the grouping contains its own most recent co ...
clades
In biology, a clade (), also known as a monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern approach to taxonomy ...
, which continued the use of Liliales as the name for the taxon.
The Angiosperm Phylogeny Group
APG system (1998) established a structure of monocot classification with ten orders. Notable was the separation of asparagids, as suggested by Dahlgren, into
Asparagales, with other taxa placed in
Dioscoreales, resulting in a much reduced order.
Phylogeny
The position of Liliales within the monocots (Lilianae) is shown in the following
cladogram
A cladogram (from Greek language, Greek ''clados'' "branch" and ''gramma'' "character") is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an Phylogenetic tree, evolutionary tree because it does not s ...
. The monocot orders form three
grades, the
alismatid monocots,
lilioid monocots and the
commelinid monocots by order of branching, from early to late. These have alternatively been referred to as Alismatanae, Lilianae and Commelinanae. The alismatid monocots form the
basal group, while the remaining grades (lilioid and commelinid monocots) have been referred to as the "core monocots". The relationship between the orders (with the exception of the two sister orders) is
pectinate, that is diverging in succession from the line that leads to the commelinids. The lilioid monocot orders constitute a
paraphyletic
Paraphyly is a taxonomic term describing a grouping that consists of the grouping's last common ancestor and some but not all of its descendant lineages. The grouping is said to be paraphyletic ''with respect to'' the excluded subgroups. In co ...
assemblage, that is groups with a common ancestor that do not include all direct descendants (in this case commelinids which are a
sister group
In phylogenetics, a sister group or sister taxon, also called an adelphotaxon, comprises the closest relative(s) of another given unit in an evolutionary tree.
Definition
The expression is most easily illustrated by a cladogram:
Taxon A and ...
to Asparagales); to form a clade, all the groups joined by thick lines would need to be included. In the cladogram the numbers indicate
crown group (most recent common ancestor of the sampled species of the clade of interest)
divergence times in
mya (million years ago).
Biogeography and evolution
The
crown group of Liliales has been dated to ca. 117
Myr (million years ago) in the
Early Cretaceous
The Early Cretaceous (geochronology, geochronological name) or the Lower Cretaceous (chronostratigraphy, chronostratigraphic name) is the earlier or lower of the two major divisions of the Cretaceous. It is usually considered to stretch from 143.1 ...
period of the
Mesozoic
The Mesozoic Era is the Era (geology), era of Earth's Geologic time scale, geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Period (geology), Periods. It is characterized by the dominance of archosaurian r ...
era.
Subdivision
The circumscription of Liliales has varied greatly since Perleb's original construction with 11 families in 1826. Many of these families are now considered to be in
Asparagales, with the remainder in
commelinids and
Dioscoreales, as shown in this table.
The availability of molecular phylogenetic methods suggested four main lineages within Liliales, and seven families;
# Liliaceae group: Liliaceae (including some former
Uvulariaceae and
Calochortaceae), and Smilacaceae (including Ripogonaceae and Philesiaceae)
# Campynemataceae
# Colchicaceae group: Colchicaceae (including
Petermannia and
Uvularia), Alstroemeriaceae and Luzuriaga
# Melanthiaceae (including
Trilliaceae)
The first Angiosperm Phylogeny Group classification (APG I) in 1998 had the following circumscription, with 9 families, having separated Philesiaceae and Ripogonaceae from Smilacaceae:
* order Liliales
*: family
Alstroemeriaceae
*: family
Campynemataceae
*: family
Colchicaceae
Colchicaceae is a family of flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; ...
*: family
Liliaceae
*: family
Luzuriagaceae
*: family
Melanthiaceae
Melanthiaceae, also called the bunchflower family, is a family (biology), family of flowering plant, flowering herbaceous perennial plants native to the Northern Hemisphere. Along with many other lilioid monocots, early authors considered member ...
*: family
Philesiaceae
*: family
Ripogonaceae
*: family
Smilacaceae
The
APG II system (2003) added
Corsiaceae to the Liliales, while
APG III (2009) added
Petermanniaceae and merged Luzuriagaceae into Alstroemeriaceae. The subsequent revision of
APG IV (2016) left this unchanged, with 10 families.
The exact phylogenetic relationship between the families of Liliales has been subject to revision. This cladogram shows that of the
Angiosperm Phylogeny Website (2020):
The bulk of the Liliales species are found in the very diverse family Liliaceae (16 genera, 610 species). Of the remaining nine families, three are referred to as the vine families (Ripogonaceae, Philesiaceae and Smilacaceae) and form a cluster.
Families
Distribution and habitat
Widely distributed but most commonly found in
subtropical
The subtropical zones or subtropics are geographical zone, geographical and Köppen climate classification, climate zones immediately to the Northern Hemisphere, north and Southern Hemisphere, south of the tropics. Geographically part of the Ge ...
and
temperate
In geography, the temperate climates of Earth occur in the middle latitudes (approximately 23.5° to 66.5° N/S of the Equator), which span between the tropics and the polar regions of Earth. These zones generally have wider temperature ran ...
regions, especially herbaceous taxa in temperate regions of the
Northern Hemisphere
The Northern Hemisphere is the half of Earth that is north of the equator. For other planets in the Solar System, north is defined by humans as being in the same celestial sphere, celestial hemisphere relative to the invariable plane of the Solar ...
, and subtropical regions of the Southern hemisphere, including vines. Since many species are
cultivated they have been
introduced in many regions and consequently worldwide, and a number have subsequently escaped and
naturalised.
Uses
Liliales form important sources of food and
pharmaceuticals as well as playing a significant role in
horticulture
Horticulture (from ) is the art and science of growing fruits, vegetables, flowers, trees, shrubs and ornamental plants. Horticulture is commonly associated with the more professional and technical aspects of plant cultivation on a smaller and mo ...
and
floriculture
Floriculture (from ) is the study of the efficient production of the plants that produce showy, colorful flowers and foliage for human enjoyment in human environments. It is a commercially successful branch of horticulture and agriculture found ...
as
ornamental plants. Pharmaceutical products include
colchicine
Colchicine is a medication used to prevent and treat gout, to treat familial Mediterranean fever and Behçet's disease, and to reduce the risk of myocardial infarction. The American College of Rheumatology recommends colchicine, nonstero ...
from ''
Colchicum
''Colchicum'' ( or ) is a genus of perennial plant, perennial flowering plants containing around 160 species which grow from bulb-like corms. It is a member of the botanical family (biology), family Colchicaceae, and is native plant, native to ...
'' and ''Gloriosa'' (Colchicaceae) and
veratrine and related compounds from ''
Veratrum'' (Melanthiaceae) and ''
Zigadenus'' (Melanthiaceae).
Notes
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Excerpts
;Taxonomic systems
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additional excerpts''
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Syllabus der Pflanzenfamilien
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Chapters
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* (''see also''
Angiosperm Phylogeny Website)
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Angiosperm Phylogeny Website)
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Further reading
Books and symposia
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{{Authority control
Angiosperm orders
Extant Aptian first appearances