Araceae
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Araceae
The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract). Also known as the arum family, members are often colloquially known as aroids. This family of 114 genera and about 3,750 known species is most diverse in the New World tropics, although also distributed in the Old World tropics and northern temperate regions. Description Within the Araceae, species are often rhizomatous or tuberous; many are epiphytic, creeping lianas or vining plants, and the leaves and tissues of the entire plant nearly always contains irritating calcium oxalate crystals or raphides, in varying degrees. The foliage can vary considerably from species to species. The majority of species produce an inflorescence consisting of a spadix (which some compare to a corn cob, in appearance), which is nearly always surrounded ...
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Lemnoideae
Lemnoideae is a subfamily of flowering aquatic plants, known as duckweeds, water lentils, or water lenses. They float on or just beneath the surface of still or slow-moving bodies of fresh water and wetlands. Also known as bayroot, they arose from within the arum or aroid family ( Araceae), so often are classified as the subfamily Lemnoideae within the family Araceae. Other classifications, particularly those created prior to the end of the twentieth century, place them as a separate family, Lemnaceae. These plants have a simple structure, lacking an obvious stem or leaves. The greater part of each plant is a small organized " thallus" or " frond" structure only a few cells thick, often with air pockets (aerenchyma) that allow it to float on or just under the water surface. Depending on the species, each plant may have no root or may have one or more simple rootlets. Reproduction is mostly by asexual budding (vegetative reproduction), which occurs from a meristem enclosed at ...
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Spadix (botany)
In botany, a spadix ( ; : spadices , ) is a type of inflorescence having small flowers borne on a fleshy stem. Spadices are typical of the family Araceae, the arums or aroids. The spadix is typically surrounded by a leaf-like curved bract known as a spathe. For example, the "flower" of the well known ''Anthurium'' spp. is a typical spadix with a large colorful spathe. In this type of inflorescence, the Peduncle (botany), peduncle is thick, long and fleshy, having small sessile unisexual flowers covered with one or more large green or colourful Bract, bracts (spathe). Spadix inflorescence is found in colocasia, Araceae, aroids, maize and Arecaceae, palms (palms have compound spadix). Plant sexuality, Monoecious aroids have unisexual male and female flowers on the same individual and the spadix is usually organized with female flowers towards the bottom and male flowers towards the top. Typically, the Stigma (botany), stigmas are no longer receptive when pollen is released which ...
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Monocotyledon
Monocotyledons (), commonly referred to as monocots, ( Lilianae '' sensu'' Chase & Reveal) are flowering plants whose seeds contain only one embryonic leaf, or cotyledon. A monocot taxon has been in use for several decades, but with various ranks and under several different names. The APG IV system recognises its monophyly but does not assign it to a taxonomic rank, and instead uses the term "monocots" to refer to the group. Monocotyledons are contrasted with the dicotyledons, which have two cotyledons. Unlike the monocots however, the dicots are not monophyletic and the two cotyledons are instead the ancestral characteristic of all flowering plants. Botanists now classify dicots into the eudicots ("true dicots") and several basal lineages from which the monocots emerged. The monocots are extremely important economically, culturally, and ecologically, and make up a majority of plant biomass used in agriculture. Common crops such as dates, onions, garlic, rice, wheat, maize, ...
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Zamioculcadoideae
Zamioculcadoideae is a subfamily of flowering plants in the family Araceae that consists of two genera, ''Zamioculcas ''Zamioculcas'' is a genus of flowering plants in the family Araceae, containing the single species ''Zamioculcas zamiifolia.'' It is a tropical Herbaceous plant, herbaceous perennial plant, and is native to eastern Africa, including Kenya, KwaZu ...'' and '' Gonatopus''. It was proposed in 2005 by Bogner and Hesse after molecular studies indicated the need for the subfamily. There are also some genetic indications that '' Stylochaeton'' should be included in the subfamily. References * J. Bogner and M. Hesse (2005). ''Zamioculcadoideae, a new subfamily of Araceae''. Aroideana Volume 28. * Lidia I. Cabrera, Gerardo A. Salazar, Mark W. Chase, Simon J. Mayo, Josef Bogner and Patricia Dávila, ''Phylogenetic relationships of aroids and duckweeds (Araceae) inferred from coding and noncoding plastid DNA'', American Journal of Botany, 95:1153-1165 Araceae Alism ...
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Raphide
Raphides ( ; singular ''raphide'' or ''raphis'') are needle-shaped crystals of calcium oxalate monohydrate ( prismatic monoclinic crystals) or calcium carbonate as aragonite ( dipyramidal orthorhombic crystals), found in more than 200 families of plants. Both ends are needle-like, but raphides tend to be blunt at one end and sharp at the other. Calcium oxalate in plants Many plants accumulate calcium oxalate crystals in response to surplus calcium, which is found throughout the natural environment. The crystals are produced in a variety of shapes. The crystal morphology depends on the taxonomic group of the plant. In one study of over 100 species, it was found that calcium oxalate accounted for 6.3% of plant dry weight. Crystal morphology and the distribution of raphides (in roots or leaves or tubers etc.) is similar in some taxa but different in others leaving possible opportunities for plant key characteristics and systematic identification; mucilage in raphide containi ...
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Gymnostachydoideae
''Gymnostachys'' is a monotypic genus (i.e. a genus which contains only one species) in the arum plant family Araceae. The sole described species is ''Gymnostachys anceps'', commonly known as settler's flax, settler's twine or boorgay. It is native to coastal and sub-coastal parts of eastern Australia, from near Ulladulla, New South Wales, to around Rossville at the base of Cape York Peninsula. ''Gymnostachys'' is placed in the subfamily Gymnostachydoideae due to its unique characteristics that include an unusually structured flowering shoot and linear leaves with parallel venation. Gallery File:Gymnostachys anceps 460898407.jpg, Habit File:Gymnostachys anceps.jpg, Flowers File:Gymnostachys anceps 444153299.jpg, Flower detail File:Gymnostachys anceps 458217937.jpg, Fruit References External links View a mapof herbarium records of this species at the Australasian Virtual Herbarium View observationsof this species on iNaturalist iNaturalist is an American 501(c)(3) n ...
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Aroideae
Aroideae is a subfamily of flowering plants in the family (biology), family Araceae. It is the largest subfamily in Araceae and consists of about 72 genera, and 2,300 species. Many Aroideae have spiny pollen grains without a sporopollenin outer exine layer and lacking an aperture (botany), aperture. Genera It includes: Taxonomy May be subdivided into a series of twenty five Tribe (biology), tribes: * Aglaonemateae * Ambrosineae * Anubiadeae * Areae (plant), Areae * Arisaemateae * Arisareae * Arophyteae * Caladieae * Calleae * Callopsideae * Colocasieae * Cryptocoryneae * Culcasieae * Dieffenbachieae * Homalomeneae * Nephthytideae * Peltandreae * Philodendreae * Philonotieae * Pistieae * Schismatoglottideae * Spathicarpeae * Stylochaetoneae * Thomsonieae * Zantedeschieae References

{{Taxonbar, from=Q133666 Aroideae, Alismatales subfamilies ...
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Lasioideae
Lasioideae is a subfamily of flowering plants in the family (biology), family Araceae. It contains ten living genera: ''Anaphyllopsis'', ''Anaphyllum'', ''Cyrtosperma'', ''Dracontioides'', ''Dracontium'', ''Lasia'', ''Lasimorpha'', ''Podolasia'', ''Pycnospatha'', and ''Urospatha''. The subfamily also includes the extinct genus ''Keratospema'' described from Ypresian fossils recovered at the Eocene Okanagan Highlands Princeton Chert site. References

* Bown, Demi (2000). ''Aroids: Plants of the Arum Family''. Timber Press. . Lasioideae, Alismatales subfamilies {{Araceae-stub ...
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Leaf
A leaf (: leaves) is a principal appendage of the plant stem, 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, flower, and fruit collectively form the Shoot (botany), shoot system. In most leaves, the primary Photosynthesis, photosynthetic Tissue (biology), tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf, but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. The leaf is an integral part of the stem system, and most leaves are flattened and have distinct upper (Glossary of botanical terms#adaxial, adaxial) and lower (Glossary of botanical terms#abaxial, abaxial) surfaces that differ in color, Trichome, hairiness, the number of stomata (pores that intake and output gases), the amount and ...
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Spathiphyllum Cochlearispathum
''Spathiphyllum cochlearispathum'' is a plant species in the family Araceae The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract). Also .... It is native to southern Mexico and often cultivated. When cultivated as a houseplant, ''Spathiphyllum cochlearispathum'' is commonly called peace lily. Taxonomic history Frederik Michael Liebmann originally described the species in a separate genus ''Hydnostachyon'', which he described as having a concave (spoon-like) spathe ''Spatha foliacea persistens cochleariformis'', from which he formed the species epithet ''cochlearispathum''. The species was moved to the genus ''Spathiphyllum'' by Heinrich Gustav Adolf Engler. Image:Spathiphyllum cochlearispathum1.jpg Image:Peace lily -- Spathiphyllum.jpg Image:Peace lily.jpg Image:Peace lily .jpg Care inst ...
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Orontioideae
Orontioideae is a subfamily of flowering plants in the family Araceae The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract). Also .... The subfamily consists of three genera namely, '' Lysichiton'' (one to two species of skunk cabbage from North America and Asia), '' Orontium'' (golden club, one living species from eastern North America and two extinct species known from fossils), and '' Symplocarpus'' (several species of skunk cabbage from North America and Asia). Characteristics of Orontioideae include medium-sized pollen grains and subterranean stems. Species in the subfamily have a base chromosome number of X=13. References * Mayo, S.J., Bogner, J., and Boyce, J.C. (1998) ''The genera of Araceae project'', Acta Botanica Yunnanica. * Bown, Deni (2000). ''Aroids: Plants of the Arum Family LL ...
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Pothoideae
Pothoideae is a subfamily of flowering plants in the family Araceae. These plants are commonly called the true aroids. Tribes and genera The subfamily consists of two tribes: Anthurieae # ''Anthurium ''Anthurium'' (; Schott, 1829) is a genus of about 1,000Mantovani, A. and T. E. Pereira. (2005)''Anthurium'' (section ''Urospadix''; subsection ''Flavescentiviridia'').''Rodriguesia'' 56(88), 145–60. species of flowering plants, the largest g ...'' Pothoeae # '' Pothos'' # '' Pothoidium'' (monotypic) References * Mayo, S.J., Bogner, J., and Boyce, J.C. (1998) ''The genera of Araceae project'', Acta Botanica Yunnanica. * Bown, Deni (2000). ''Aroids: Plants of the Arum Family LLUSTRATED'. Timber Press. {{Taxonbar, from=Q867724 Alismatales subfamilies ...
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