Lepidocaryum
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''Lepidocaryum'' is a
monotypic In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unisp ...
genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
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 (; 'seed'), meaning that the seeds are enclosed with ...
in the
palm Palm most commonly refers to: * Palm of the hand, the central region of the front of the hand * Palm plants, of family Arecaceae ** List of Arecaceae genera **Palm oil * Several other plants known as "palm" Palm or Palms may also refer to: Music ...
family from
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 ...
where the lone species, ''Lepidocaryum tenue'', is commonly called poktamui. Nine species names have been published, but palm taxonomists currently agree that just one variable species includes them all.Kew World Checklist of Selected Plant Families
/ref>Riffle, Robert L. and Craft, Paul (2003) ''An Encyclopedia of Cultivated Palms''. Portland: Timber Press. / The most reduced member of the Lepidocaryeae, it is similar in appearance to two closely related genera, ''
Mauritia ''Mauritia'' is a genus of fan palms which is native to northern South America and to the Island of Trinidad in the Caribbean. Only two species are currently accepted. References

Mauritia, Trees of South America Trees of Trinidad ...
'' and '' Mauritiella'', as well as to the former genus ''Lytocaryum'' (now included in '' Syagrus'').Uhl, Natalie W. and Dransfield, John (1987) ''Genera Palmarum - A classification of palms based on the work of Harold E. Moore''. Lawrence, Kansas: Allen Press. / The genus name combines the
Greek Greek may refer to: Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group *Greek language, a branch of the Indo-European language family **Proto-Greek language, the assumed last common ancestor of all kno ...
words for "scale" and "nut" and the species epithet is
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
for "thin".


Description

At just 2.5 cm in width, the clustering trunks reach no higher than 3.5 m and are covered at the top by old, adherent leaf bases. The small, reduplicate
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 palmate and borne on 60 cm petioles. Each leaf is split in half, to the petiole, with each half further divided into 2–11 narrow segments. ''Lepidocaryum'' is dioecious, with male and female flowers on separate plants, both with interfoliar
inflorescences In botany, an inflorescence is a group or cluster of flowers arranged on a plant's stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a main axis ( pe ...
, branched to two orders, which are superficially similar. Female plants produce oblong or ovoid
fruit In botany, a fruit is the seed-bearing structure in flowering plants (angiosperms) that is formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate their seeds. Edible fruits in particular have long propaga ...
, usually with one
seed In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds ...
, red to brown in color and covered in scales.


Distribution and habitat

Spread throughout Brazil's
Amazon Amazon most often refers to: * Amazon River, in South America * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon (company), an American multinational technology company * Amazons, a tribe of female warriors in Greek myth ...
region, north to
Venezuela Venezuela, officially the Bolivarian Republic of Venezuela, is a country on the northern coast of South America, consisting of a continental landmass and many Federal Dependencies of Venezuela, islands and islets in the Caribbean Sea. It com ...
, the wetter parts of
Colombia Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...
,
Guyana Guyana, officially the Co-operative Republic of Guyana, is a country on the northern coast of South America, part of the historic British West Indies. entry "Guyana" Georgetown, Guyana, Georgetown is the capital of Guyana and is also the co ...
and
Peru Peru, officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the south and west by the Pac ...
, it is an undergrowth palm found in low land
rain forest Rainforests are forests characterized by a closed and continuous tree Canopy (biology), canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforests can be generally classified as tropi ...
. In habitat the leaves are often used in thatch.


Varieties

Three varieties are recognized: * ''Lepidocaryum tenue'' var. ''casiquiarense'' (Spruce) A.J.Hend. - Venezuela, Colombia, Brazil * ''Lepidocaryum tenue'' var. ''gracile'' (Mart.) A.J.Hend. - Guyana, northern Brazil * ''Lepidocaryum tenue'' var. ''tenue'' - Colombia, Peru, northern Brazil


Uses

In the Amazonian region of Peru, particularly in and around
Iquitos Iquitos (; ) is the capital city of Peru's Maynas Province, Peru, Maynas Province and Loreto Region. It is the largest metropolis in the Peruvian Amazon, east of the Andes, as well as the List of cities in Peru, ninth-most populous city in Peru ...
, the palm's leaves are widely used for thatching roofs.


References


External links


''Lepidocaryum'' on NPGS/GRINFairchild Guide to Palms: ''Lepidocaryum''GBIF portalPlantsystematics.org with images
{{Taxonbar, from=Q16060657, from2=Q141910 Calamoideae Monotypic Arecaceae genera Flora of the Amazon Flora of Southern America Dioecious plants