Difference between revisions of "Triphora gentianoides"
in O. Ames, Orchidaceae 7: 5. 1922.
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|subfamily=Orchidaceae subfam. Epidendroideae | |subfamily=Orchidaceae subfam. Epidendroideae | ||
|tribe=Orchidaceae tribe Triphoreae | |tribe=Orchidaceae tribe Triphoreae | ||
Revision as of 16:41, 18 September 2019
Plants 8–26 cm. Roots from cylindric tuberoids, 30–60 × 8–10 mm. Stems green, often tinged with brown or purplish, unbranched or rarely 2–3-branched from base. Leaves 3–10, ascending, usually partially sheathing stem; blade green, often tinged with brown or purple, bractlike, ovate, 1–1.8 × 0.5–1 cm, margins entire. Inflorescences 3–10(–15)-flowered corymbose racemes. Flowers not resupinate, erect, closed to slightly gaping, pale green, sometimes tinged with brown or reddish brown; flowering successive, anthesis overlapping; dorsal sepal linear-lanceolate, 6–11 × 2–2.5 mm; lateral sepals linear-lanceolate, falcate, 6–11 × 2–2.5 mm; petals linear-lanceolate, falcate, 8–11 × 1–2 mm; lip facing stem, white to pale green, ovate to obovate, clawed, 3-lobed, 8–10 × 3–4 mm, middle lobe ovate, lateral lobes lance-ovate, margins erose to nearly lacerate; disc with 3 green, raised, denticulate crests; column yellowish white, clavate, slender, 7 mm; pollinia 2, yellow. Capsules erect, ellipsoid, 10–20 × 5–10 mm.
Phenology: Flowering summer.
Habitat: Sandy pinelands in shade or full sun, persisting in sandy lawns, or rarely in shade of live- oak hammocks
Elevation: 0–10 m
Distribution
Fla., se Mexico, West Indies (Cuba, Dominican Republic, Haiti), Central America (Belize, Guatemala, Honduras, Panama), South America (Ecuador, Venezuela).
Discussion
The flowers are presumed to be self-fertilizing. The anther color has been reported as purple for Venezuelan material (G. C. K. Dunsterville and L. A. Garay [1959]–1976, vol. 3).
Selected References
None.