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 "unispec ...
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
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 * Several other plants known as "palm" Palm or Palms may also refer to: Music * Palm (ba ...
family from
South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southe ...
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 Lepidocaryeae is a tribe of plants in the family Arecaceae. Subtribes and genera in the tribe are: *Subtribe Ancistrophyllinae – Africa **''Oncocalamus'' – Central Africa **''Eremospatha'' – Africa **''Laccosperma'' – Africa *Subtribe ...
, it is similar in appearance to three 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 ...
'', ''
Mauritiella ''Mauritiella'' is a dioecious genus of flowering plant in the palm family found in South America where it is commonly called buriti. It is named after the similar and closely related genus '' Mauritia''.Uhl, Natalie W. and Dransfield, John (198 ...
'', and ''
Lytocaryum ''Lytocaryum'' is a monoecious genus of flowering plant in the palm family endemic to the Atlantic coast of Brazil, where 4 species are known. Palms once classified as ''Microcoelum'' are herein included; the genus is closely related to '' Syag ...
''.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: Greece 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 ...
words for "scale" and "nut" and the species epithet is
Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...
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 (plural, : leaves) is any of the principal appendages of a vascular plant plant stem, stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", wh ...
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 An inflorescence is a group or cluster of flowers arranged on a Plant stem, stem that is composed of a main branch or a complicated arrangement of branches. Morphology (biology), Morphologically, it is the modified part of the shoot of sperma ...
, 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 that is formed from the ovary after flowering. Fruits are the means by which flowering plants (also known as angiosperms) disseminate their seeds. Edible fruits in particu ...
, usually with one
seed A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiospe ...
, red to brown in color and covered in scales.


Distribution and habitat

Spread throughout Brazil's
Amazon Amazon most often refers to: * Amazons, a tribe of female warriors in Greek mythology * Amazon rainforest, a rainforest covering most of the Amazon basin * Amazon River, in South America * Amazon (company), an American multinational technology c ...
region, north to
Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...
, the wetter parts of
Colombia Colombia (, ; ), officially the Republic of Colombia, is a country in South America with insular regions in North America—near Nicaragua's Caribbean coast—as well as in the Pacific Ocean. The Colombian mainland is bordered by the Car ...
,
Guyana Guyana ( or ), officially the Cooperative Republic of Guyana, is a country on the northern mainland of South America. Guyana is an indigenous word which means "Land of Many Waters". The capital city is Georgetown. Guyana is bordered by the ...
and
Peru , image_flag = Flag of Peru.svg , image_coat = Escudo nacional del Perú.svg , other_symbol = Great Seal of the State , other_symbol_type = Seal (emblem), National seal , national_motto = "Fi ...
, it is an undergrowth palm found in low land
rain forest Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainforest ...
. 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 and Loreto Region. It is the largest metropolis in the Peruvian Amazon, east of the Andes, as well as the ninth-most populous city of Peru. Iquitos is the largest city in the world th ...
, 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 South America Dioecious plants