Difference between revisions of "Mesadenus"
Beih. Bot. Centralbl. 37: 367. 1920.
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|subfamily=Orchidaceae subfam. Orchidoideae | |subfamily=Orchidaceae subfam. Orchidoideae | ||
|tribe=Orchidaceae tribe Cranichideae | |tribe=Orchidaceae tribe Cranichideae | ||
Latest revision as of 21:11, 5 November 2020
Herbs, terrestrial, sympodial. Roots fasciculate, fleshy, villous. Stems erect, rhizomatous, short. Leaves several, basal, petiolate; blade not articulate, involute when immature, margins entire. Inflorescences terminal, laxly to densely flowered racemes, erect, scapose, slender. Flowers resupinate; perianth parts partially connate, apices spreading to recurved; sepals subsimilar, subparallel; dorsal sepal adherent to base of column; lateral sepals attached to column foot; petals adnate to dorsal sepal, falcate; lip auriculate, canaliculate; column arcuate, column foot present, clinandrium inflated; stigmas 2, confluent; rostellum narrow, notched; anther stalked, cordate, curved backward during anthesis, surpassing rostellum; pollinia 4, clavate, soft, mealy; viscidium ovate to subelliptic. Fruits capsules, erect, obliquely fusiform to ovoid.
Distribution
Tropical and subtropical regions, North America, Mexico, West Indies, Central America, South America.
Discussion
Species 7 (1 in the flora).
Selected References
None.