Cleistes
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Orchidaceae
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Scientific Name
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Description
Genus Description - Sep and lateral pet evidently unlike, the sep slender, widely spreading or distally recurved, the pet directed forward, close together over the lip; lip rather broad, ± ovate in outline, obscurely 3-lobed, the long low lateral lobes enfolding the column, the terminal lobe short, triangular; lip crested with a median ridge and with a ridged and papillate summit; column with a deflexed terminal anther; pollinia 2; perennial from a cluster of fleshy-fibrous roots, the erect stem-bearing 1 or 2 sheathing scales toward the base and a single (2) foliage lf near or above the middle; fl solitary, rarely 2. 25, W. Hemisphere, mainly trop.