Taxon Details: Tepuia vareschii Steyerm.
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Family:
Ericaceae (Magnoliophyta)
Ericaceae (Magnoliophyta)
Scientific Name:
Tepuia vareschii Steyerm.
Tepuia vareschii Steyerm.
Primary Citation:
Acta Bot. Venez. 2: 306. 1967
Acta Bot. Venez. 2: 306. 1967
Accepted Name:
This name is currently accepted.
This name is currently accepted.
Description:
Description: Shrub; stems terete, densely and shortly pilose, hairs ferruginous or whitish, turning grayish, glabrate. Leaves thick-coriaceous, strongly convex above and concave below, elliptic, 1.5-3 x 0.7-1 cm, base obtuse to broadly cuneate, short-decurrent, apex obtuse or rounded, margin entire, strongly revolute, bearing 1 pair of pustular glands at the lamina base, glabrous above, densely ferruginous-tomentose beneath so as to obscure surface; pinnately nerved with midrib impressed above and raised beneath, lateral nerves (apparently 3-4 per side) obscure; petiole subterete, shallowly canaliculate above, rugose, 2-4 mm long, pubescent as stems. Inflorescence 1-5-flowered, with rachis, pedicels, floral bracts, bracteoles, and exterior surfaces of calyx densely and shortly ferruginous-tomentose, glabrate; rachis subterete, angled, 2-8 mm long; loral bract ovate, ca. 1.5 mm long, obtuse; pedicel subterete, angled, ca. 3 mm long; bracteoles broadly ovate, ca. 1.5-2 mm long, acute. Flowers with calyx ca. 8 mm long, lobes ovate, ca. 6 mm long, acuminate, sparsely short-pilose within at tips; corolla immature but buds densely short-pilose and anther base short-mucronate; ovary densely ferruginous-pilose so as to obscure surface; style ca. 5 mm long, glabrous. Berry not seen.
Distribution: Endemic to the Venezuelan Guayana and known only from the type collection, said to have been collected at the entrance to a cave, and from Chimantá.
Type: Venezuela. Bolívar: Auyán-tepui, 2300 m, Apr 1956 (late fl), Vareschi & Foldats 4966 (holotype, VEN, photo NY neg. 8015).
Conservation status: Rare and endangered.
Description: Shrub; stems terete, densely and shortly pilose, hairs ferruginous or whitish, turning grayish, glabrate. Leaves thick-coriaceous, strongly convex above and concave below, elliptic, 1.5-3 x 0.7-1 cm, base obtuse to broadly cuneate, short-decurrent, apex obtuse or rounded, margin entire, strongly revolute, bearing 1 pair of pustular glands at the lamina base, glabrous above, densely ferruginous-tomentose beneath so as to obscure surface; pinnately nerved with midrib impressed above and raised beneath, lateral nerves (apparently 3-4 per side) obscure; petiole subterete, shallowly canaliculate above, rugose, 2-4 mm long, pubescent as stems. Inflorescence 1-5-flowered, with rachis, pedicels, floral bracts, bracteoles, and exterior surfaces of calyx densely and shortly ferruginous-tomentose, glabrate; rachis subterete, angled, 2-8 mm long; loral bract ovate, ca. 1.5 mm long, obtuse; pedicel subterete, angled, ca. 3 mm long; bracteoles broadly ovate, ca. 1.5-2 mm long, acute. Flowers with calyx ca. 8 mm long, lobes ovate, ca. 6 mm long, acuminate, sparsely short-pilose within at tips; corolla immature but buds densely short-pilose and anther base short-mucronate; ovary densely ferruginous-pilose so as to obscure surface; style ca. 5 mm long, glabrous. Berry not seen.
Distribution: Endemic to the Venezuelan Guayana and known only from the type collection, said to have been collected at the entrance to a cave, and from Chimantá.
Type: Venezuela. Bolívar: Auyán-tepui, 2300 m, Apr 1956 (late fl), Vareschi & Foldats 4966 (holotype, VEN, photo NY neg. 8015).
Conservation status: Rare and endangered.
Flora and Monograph Treatment(s):
Tepuia vareschii Steyerm.: [Article] Maguire, Bassett. 1978. The botany of the Guayana Highland--part X. Mem. New York Bot. Gard. 29: 1-288.
Tepuia vareschii Steyerm.: [Article] Luteyn, James L., et al. 1995. Ericaceae, Part II. The Superior-Ovaried Genera (Monotropoideae, Pyroloideae, Rhododendroideae, and Vaccinioideae P.P.). Fl. Neotrop. Monogr. 66: 560.
Tepuia vareschii Steyerm.: [Article] Maguire, Bassett. 1978. The botany of the Guayana Highland--part X. Mem. New York Bot. Gard. 29: 1-288.
Tepuia vareschii Steyerm.: [Article] Luteyn, James L., et al. 1995. Ericaceae, Part II. The Superior-Ovaried Genera (Monotropoideae, Pyroloideae, Rhododendroideae, and Vaccinioideae P.P.). Fl. Neotrop. Monogr. 66: 560.