Mesadenus

Schlechter

Beih. Bot. Centralbl. 37: 367. 1920.

Etymology: Greek (Latinized) meso, middle, and aden, gland
Treatment appears in FNA Volume 26. Treatment on page 525. Mentioned on page 498.
Revision as of 19:29, 24 September 2019 by FNA>Volume Importer

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.

... more about "Mesadenus"
James D. Ackerman +
Schlechter +
Tropical and subtropical regions +, North America +, Mexico +, West Indies +, Central America +  and South America. +
Greek (Latinized) meso, middle, and aden, gland +
Beih. Bot. Centralbl. +
Mesadenus +
Orchidaceae (tribe Cranichideae) subtribe Spiranthinae +