Pelexia Poit. ex Rich.

Genus

Angiosperms > Asparagales > Orchidaceae

Characteristics

Herbs, terrestrial, lithophytic, or rarely epiphytic. Rhizome absent, inconspicuous, or long; roots numerous, fleshy. Leaves usually forming a basal rosette, rarely cauline, several to many, lanceolate to ovate, petiole-like at base; petiole-like base slender or stout, channeled. Inflorescence erect, terminal, racemose, proximally glabrous, pubescent above; peduncle covered by several sheathing bracts. Flowers sometimes produced before leaves, resupinate, erect or horizontal, medium-sized, tubular; ovary fusiform, pubescent. Sepals pubescent adaxially; dorsal sepal concave, connivent with petals and forming a hood; lateral sepals connate at base, adnate to column foot and forming a short spur, or rarely free and not forming a spur. Petals elliptic to oblanceolate, often oblique at base; lip entire and obovate to spatulate, or sometimes 2-partite with an expanded epichile, fleshy, margin adherent to column for most of its length. Column elongate, stout, ventrally often puberulent or pubescent, base with long column foot; anther sessile, 2-locular; pollinia 2, longitudinally cleft, oblong-ovoid to narrowly ovoid, granular-farinaceous, tapering into caudicles attached to a solitary ovate viscidium; rostellum flexible, narrowly oblong or ligulate; stigma 2-lobed; lobes confluent or separate.
More
Herbs, terrestrial, rarely subaquatic, sympodial. Roots fasciculate, thick, fleshy, villous. Leaves 1–several, basal; petiole not articulate, reddish purple, long. Inflorescences terminal, many-flowered racemes or spikes, erect, pedunculate, bracteate. Flowers resupinate, green; dorsal sepal connivent with petals forming hood over column; lateral sepals decurrent on column foot; lip sagittate to auriculate, fleshy, basal margins adnate to sides of column; column cylindric, elongate, puberulent to pilose; column foot elongate; anther abaxial, ovate-cordate; pollinia 2, oblong-clavate, mealy; stigmas 2, adjacent; rostellum elongate; viscidium ovate to suborbiculate; ovary sessile to subsessile. Fruits capsules, erect.
Life form perennial
Growth form herb
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Sexuality hermaphrodite
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Root system rhizome
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Environment

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Hardiness (USDA) 9-12

Usage

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Cultivation

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Images

Pelexia unspecified picture

Distribution

Pelexia world distribution map, present in Bahamas, Belize, Bolivia (Plurinational State of), China, Costa Rica, Cuba, Cayman Islands, Dominica, Ecuador, Guatemala, Guyana, Honduras, Haiti, Jamaica, Nicaragua, Panama, Peru, Puerto Rico, Paraguay, Suriname, Uruguay, United States of America, Venezuela (Bolivarian Republic of), and Samoa

Identifiers

LSID urn:lsid:ipni.org:names:30295-1
WFO ID wfo-4000028463
COL ID 8W279
BDTFX ID -
INPN ID 628125
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Pachygenium Pelexia

Lower taxons

Pelexia adnata Pelexia arrabidae Pelexia ecuadorensis Pelexia ekmanii Pelexia hysterantha Pelexia incurvidens Pelexia itatiayae Pelexia laminata Pelexia laxa Pelexia lindmanii Pelexia maxonii Pelexia minarum Pelexia mouraei Pelexia neottiorhiza Pelexia novofriburgensis Pelexia ochyrae Pelexia oestrifera Pelexia olivacea Pelexia orobanchoides Pelexia orthosepala Pelexia sceptrum Pelexia tamanduensis Pelexia tenuior Pelexia robusta Pelexia pterygantha Pelexia loefgrenii Pelexia stenantha Pelexia bonariensis Pelexia bradei Pelexia burgeri Pelexia callifera Pelexia cuculligera Pelexia goninensis Pelexia goyazensis Pelexia gracilis Pelexia longibracteata Pelexia luetzelburgii Pelexia macropoda Pelexia mandonii Pelexia mattogrossensis Pelexia matucanensis Pelexia palmorchidis Pelexia pavonii Pelexia phallocallosa Pelexia viridis Pelexia ghiesbreghtii Pelexia delicatula Pelexia huntii Pelexia weberbaueriana Pelexia vinosa Pelexia joannae Pelexia arechavaletae Pelexia konsikiana Pelexia popowiana Pelexia sagittata Pelexia schmidtiana Pelexia triangularis Pelexia albicans Pelexia asinus Pelexia caucae Pelexia decora Pelexia hirta Pelexia hamata Pelexia congesta Pelexia chironiana Pelexia geralia Pelexia ovatifolia Pelexia paludosa Pelexia parva Pelexia sancta Pelexia tovarensis Pelexia trachyglossa Pelexia collocaliae Pelexia comosa Pelexia cundinamarcae Pelexia fiebrigii Pelexia funckiana Pelexia gutturosa Pelexia obliqua Pelexia polyantha Pelexia quisqueyana Pelexia sheviakii Pelexia sinuosa Pelexia vaginata Pelexia ventricosa Pelexia yungasensis Pelexia weberbaueri Pelexia leucosticta