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FNA | Family List | FNA Vol. 26 | Orchidaceae

10. Cyclopogon C. Presl, Reliq. Haenk. 1: 93, plate 13. 1827.

[Greek cyclo, circular, and pogon, beard, perhaps in reference to pubescent bases of sepals of the type species]

James D. Ackerman

Beadlea Small

Herbs, terrestrial, sympodial. Roots fasciculate, fleshy, villous. Stems simple, rhizomatous. Leaves few to many, basal, petiolate; blade not articulate, convolute, mostly ovate to elliptic, soft. Inflorescences terminal, many-flowered spikes or racemes, erect; scapes bracteate. Flowers resupinate, horizontal, greenish or yellowish green, small; sepals subparallel, distinct or connate at base, forming obscure mentum with base of column or sepaline nectar tube; petals connivent with dorsal sepal; lip clawed, sagittate to cordate, constricted proximal to apex; lateral margins appressed to sides of column; column erect; pollinia 2, clavate-oblong, mealy; stylar canal entrance central; stigma lobes 2, distinct or approximate; rostellum longer than wide; viscidium relatively large, disc-shaped; ovary sessile or subsessile. Fruits capsules.

Species 70 (2 in the flora): tropical and subtropical regions, s North America, Mexico, West Indies, Central America, South America.

All species of Cyclopogon except the holotype were placed in the genus Beadlea (L. A. Garay 1980[1982]) because their perianth base was not united into a tube. That characteristic was rejected as a valid generic distinction but the taxon was recognized as Cyclopogon sect. Beadlea (P. Burns-Balogh 1982; P. Burns-Balogh and H. Robinson 1983). The perianth tube character is a matter of degree and not one of presence or absence (D. L. Szlachetko 1993).

1 Midvein and margins of petals darkened distally; lip broadest proximal to apical constriction; leaf blades purplish abaxially, dark purplish green adaxially; petioles spreading to suberect, 1.1–3.5(–5.5) cm.   1 Cyclopogon cranichoides
+ Midvein and margins of petals unmarked distally; lip broadest distal to apical constriction or distal and proximal parts of lip equal in width; leaf blades green; petioles erect, 3–10 cm.   2 Cyclopogon elatus

Lower Taxa


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