Holochlamys
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''Holochlamys'' 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 of flowering plants in 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 ...
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 ...
. ''Holochlamys beccarii'' is the only species in the genus ''Holochlamys.'' It is native to
New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; , fossilized , also known as Papua or historically ) is the List of islands by area, world's second-largest island, with an area of . Located in Melanesia in the southwestern Pacific Ocean, the island is ...
and the
Bismarck Archipelago The Bismarck Archipelago (, ) is a group of islands off the northeastern coast of New Guinea in the western Pacific Ocean and is part of the Islands Region of Papua New Guinea. Its area is about . History The first inhabitants of the archipela ...
Kew World Checklist of Selected Plant Families
/ref> and is found growing in mud near lowland streams or rocky streambeds at high elevations. The species is primarily
rheophytic A rheophyte is a plant that lives in fast moving water currents in an environment where few other organisms can survive. Rheophytes tend to be found in currents that move at rates of one to two meters per second and that are up to 1 to 2 m deep. Th ...
and closely related to the genus ''
Spathiphyllum ''Spathiphyllum'' is a genus of about 60 species of monocotyledonous flowering plants in the family Araceae, native to tropical regions of the Americas and southeastern Asia. Certain species of ''Spathiphyllum'' are commonly known as spath or pea ...
''. ''Holochlamys'' closely resemble ''Spathiphyllum'' except that in ''Holochamys'' the
spathe In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look ...
clasps the spadix. Also, the
inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, 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 mai ...
rots quickly after flowering which doesn't occur in ''Spathiphyllum''. The inflorescence emerges below the foliage and has a white
spathe In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also look ...
and spadix. The spadix tends to be about the same length as the spathe and produces a leathery fruit. Contained within the fruit are very small seeds. The leaves can vary greatly in size, but they tend to be either oval or
lanceolate The following terms are used to describe leaf plant morphology, morphology in the description and taxonomy (biology), taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade ...
.Bown, Deni (2000). Aroids: Plants of the Arum Family LLUSTRATED Timber Press.


References

Monsteroideae Monotypic Araceae genera Flora of New Guinea Flora of the Bismarck Archipelago Taxa named by Adolf Engler {{Araceae-stub