Difference between revisions of "Ponthieva brittoniae"
Torreya 10: 90. 1910.
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|name=Ponthieva racemosa var. brittoniae | |name=Ponthieva racemosa var. brittoniae | ||
|authority=(Ames) Luer | |authority=(Ames) Luer | ||
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|hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Cranichideae;Orchidaceae (tribe Cranichideae) subtribe Cranichidinae;Ponthieva;Ponthieva brittoniae | |hierarchy=Orchidaceae;Orchidaceae subfam. Orchidoideae;Orchidaceae tribe Cranichideae;Orchidaceae (tribe Cranichideae) subtribe Cranichidinae;Ponthieva;Ponthieva brittoniae | ||
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name=Ponthieva brittoniae | name=Ponthieva brittoniae | ||
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|authority=Ames | |authority=Ames | ||
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|publication year=1910 | |publication year=1910 | ||
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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
Plants 30–50 cm. Roots unknown. Stems subterranean, short. Leaves withering at or during anthesis, 3–12; petiole 1–2.5 cm; blade elliptic to ovate, 4–10 × 1.5–3.5 cm, apex obtuse to acute. Inflorescences: peduncle 26–37 cm, partially enclosed by tubular sheaths, proximalmost larger but not leafy; rachis laxly 20–35-flowered, 10–18 cm; floral bracts lanceolate, clasping base of ovary, 5–10 mm, apex acuminate, pubescent. Flowers: sepals green, adaxially pubescent; dorsal sepal distinct, oblong-lanceolate, 4–5 × 2–3 mm, apex acute to obtuse; lateral sepals obliquely ovate-lanceolate, 4–5 × 2.5 mm, apex acute to obtuse; petals recurved, white, indistinctly clawed, obliquely triangular-ovate, 4–4.5 × 1.5 mm, margins entire, apex acute, pubescent; lip subsessile, white with 2 dark green blotches, obovate, 4.5 × 3.5 mm, apex short-caudate; column white, 2.5 mm; pedicellate ovary 7–9 mm. Capsules 8–13 mm.
Phenology: Flowering Dec–early Mar.
Habitat: Open rocky pinelands
Elevation: 0–20 m
Distribution
Fla., West Indies (Bahamas).
Discussion
Most of the original habitat of Ponthieva brittoniae has succumbed to urbanization. Only two locations are known to exist. One consisted of only a single specimen, and plants of the other have not reappeared since 1986 and may have been destroyed by roadwork (C. McCartney 1997).