Prescottia carnosa C.Schweinf., Fieldiana, Bot.
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publication ID |
https://doi.org/ 10.11646/phytotaxa.178.4.1 |
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persistent identifier |
https://treatment.plazi.org/id/957087FF-FF9A-FF9A-FF04-FCBAFDE6F298 |
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treatment provided by |
Felipe |
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scientific name |
Prescottia carnosa C.Schweinf., Fieldiana, Bot. |
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1. Prescottia carnosa C.Schweinf., Fieldiana, Bot. View in CoL 28: 173, 1951.
Type:— VENEZUELA. Bolivar: Ptari-tepui, Steyermark 59772 (holotype F!). Fig. 13 View FIGURE 13 .
[ Schweinfurth 1967].
Terrestrial herbs. Leaves 3, basal to rosulate, long-petiolate; petiole 5.0– 9.2 cm long, rose-red; blade 4.7–5.3 × 2.3–3.0 cm, elliptic to ovate, deep green, apex acute, base truncate to rounded, margin entire. Inflorescence 30–35-flowered; peduncle 41.5 cm long, cylindric, rose-red; bracts 8–13, 10.0–30.0 × 5.0 mm, ovate, apex acute; rachis 8.5–11.0 × 1.3–1.5 cm, rose-red. Floral bracts 0.5 × 0.4 mm, ovate, apex acuminate; flower almost patent, tawny-yellow and salmon; dorsal sepal strongly revolute, 2.5–3.0 × 1.0– 1.2 mm, lanceolate-oblong to oblong, tawny-yellow and salmon, apex obtuse; lateral sepals strongly revolute, 3.2–3.5 × 1.5–1.8 mm, triangular-oblong, tawny-yellow and salmon, apex rounded; petals strongly revolute, 2.4–2.6 × 0.7–0.9 mm, linear, tawny-yellow and salmon, apex obtuse; lip 3.5 × 3.0– 3.2 mm, fleshy, tawny-yellow and salmon, divided in the middle by a longitudinal keel, inner surface glabrous, outer surface densely minute-papillose. Column 0.8–1.0 mm long, glabrous.
Distribution:— Venezuela and Guyana ( Fig. 14 View FIGURE 14 ).
Specimens Examined:— GUYANA. Potaro-Siparuni Region: Mt. Ayanganna , camp on summit plateau 23 July 2001, Clarke 9458 (US) . VENEZUELA. Bolívar: Expedición Auyan-tepui , at base of moist zanjon below (north of) El Libertador, 15 May 1964, Steyermark 93962 ( GH). Territorio Federal Amazonas: Cerro Sipapo (Paráque), Territorio Amazonas, 01 January 1949, Maguire 28092 ( NY) .
Habitat:— Prescottia carnosa occurs in grasslands on plateaus at 1,400–2,300 m.
Conservation Status:— Vulnerable (VU – D2). This taxon is known to exist at no more than five locations, represented only by four herbarium collections.
Etymology:— From the Latin fleshy, probably a reference to the thick lip.
Notes:— Prescottia carnosa is poorly known and rarely collected. It can be distinguished from all other species in the genus by the longitudinal keel or septum in the centre of the fleshy lip. Another remarkable character of this taxon is flower orientation, which is almost patent.
| F |
Field Museum of Natural History, Botany Department |
| GH |
Harvard University - Gray Herbarium |
| NY |
William and Lynda Steere Herbarium of the New York Botanical Garden |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.