Difference between revisions of "Cyclopogon"
Reliq. Haenk. 1: 93, plate 13. 1827.
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|name=Beadlea | |name=Beadlea | ||
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|hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Cranichideae;Orchidaceae (tribe Cranichideae) subtribe Spiranthinae;Cyclopogon | |hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Cranichideae;Orchidaceae (tribe Cranichideae) subtribe Spiranthinae;Cyclopogon | ||
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|distribution=Tropical and subtropical regions;s North America;Mexico;West Indies;Central America;South America. | |distribution=Tropical and subtropical regions;s North America;Mexico;West Indies;Central America;South America. | ||
|discussion=<p>Species 70 (2 in the flora).</p><!-- | |discussion=<p>Species 70 (2 in the flora).</p><!-- | ||
| − | --><p>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).</p> | + | --><p>All species of <i>Cyclopogon</i> 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 <i>Cyclopogon</i> 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).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1827 | |publication year=1827 | ||
|special status= | |special status= | ||
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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 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.
Distribution
Tropical and subtropical regions, s North America, Mexico, West Indies, Central America, South America.
Discussion
Species 70 (2 in the flora).
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).
Selected References
None.
Lower Taxa
Key
| 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. | Cyclopogon cranichoides |
| 1 | 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. | Cyclopogon elatus |