Difference between revisions of "Macradenia"
Bot. Reg. 8: plate 612. 1822.
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|subfamily=Orchidaceae subfam. Epidendroideae | |subfamily=Orchidaceae subfam. Epidendroideae | ||
|tribe=Orchidaceae tribe Maxillarieae | |tribe=Orchidaceae tribe Maxillarieae | ||
Latest revision as of 21:13, 5 November 2020
Herbs, epiphytic, cespitose. Stems with prominent, elongate pseudobulbs partially covered by bracts. Leaves per sympodium 1, rarely 2, apical, leathery; blade conduplicate, oblong-lanceolate, dorsiventrally flattened, margins entire. Inflorescences racemes, arising from base of pseudobulb, pendent; bracts narrowly triangular. Flowers: petals and sepals oblong-elliptic, distinct and free; lip 3-lobed, without nectar cavity, callus shallow; column with prominent dorsal hood projecting over anther cap, otherwise without wings or arms; stigmatic cavity longitudinal; rostellum prominent, beaklike, projecting outward. Fruits capsules, ellipsoid, ± triangular in cross section.
Distribution
Tropical and subtropical regions of Western Hemisphere.
Discussion
Species 10–12 (1 in the flora).
Selected References
None.