Ocotea grayi van der Werff
Creators: name: Werff, Henk Van Der
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Laurales
Lauraceae
Ocotea
Ocotea grayi

description: 14. <i>Ocotea grayi</i> van der Werff (Fig. 3) <i>Novon</i> 6: 465 (1996). TYPUS. — <b>Madagascar</b>. Toliara, Réserve Intégrale 11 (Andohahela), <i>van der Werff et al. 12732</i> (holo-, MO!; iso-, B, G, GH, K, L, LE, MO!, NY, P, PRE, QRS, TAN). SELECTED SPECIMENS SEEN. — Fianarantsoa, Midongy du Sud, Beharana II, forêt d’Anamangy, <i>Andrianjafy et al. 1203</i> (MO, P); Fianarantsoa, Ranomafana National Park, <i>Malcomber et al. 1610</i> (MO, P [P02009657], TAN); Toliara, NW of Fort Dauphin along road to Ranomafana, <i>McPherson &amp; Rabevohitra 14975</i> (MO, P [P02009658], TAN, TEF); Toliara. Réserve Intégrale 11 (Andohahela), <i>van der Werff et al. 12745</i> (MO, P, QRS, TAN); Vestiges de forêt orientale très dégradée sur la route de Farafangana à Ambalatany, <i>Service Forestier (Capuron) 23564</i> (MO, P [P01991762], TEF). DISTRIBUTION. <i>— Ocotea grayi</i> is known from forests on the eastern slope from Brickaville south to Ft. Dauphin and inland to Ranomafana and Fianarantsoa, up to 1000 m elevation. PHENOLOGY. — Flowers: August-November (mostly September-October); fruits throughout the year. VERNACULAR NAMES. — Varongirwinbakoka, varongy, varongy fotsy, varongi mainty. DESCRIPTION Tree, to 25 m. Twigs terete, yellow-brown tomentellous when young, glabrescent; terminal buds tomentellous. Leaves 9-19 × 4-9 cm, alternate, tripliveined, chartaceous, elliptic to broadly elliptic, base acute or obtuse, apex acute or acuminate, lateral veins 3-5; upper leaf surface initially pubescent, soon becoming glabrous, venation immersed, lower surface with a sparse to dense indument of erect, curled hairs, venation clearly raised; domatia present, consisting of shallow pockets covered by a dense tuft of hairs. Petioles 0.8-1.5 cm long, with a similar indument as the twigs. Inflorescences (densely) pubescent, paniculate-cymose, in axils of leaves, to 12 cm long. Flowers creamy white to pale yellow, tepals 6, pubescent on both surfaces, <i>c.</i> 2 mm long; stamens 9, all 4-celled, 1 mm long, filaments pubescent, anthers glabrous, glands present at the base of the inner stamens, staminodia stipitiform, pubescent. Ovary and inside of the receptacle glabrous. Fruit roundish, <i>c.</i> 2 cm in diameter, cupule deeply cup-shaped, to 2.5 cm wide, 1.5 cm high. REMARKS <i>Ocotea grayi</i> is characterized by the presence of domatia, tripliveined leaves, erect indument on lower leaf surface and its rather long inflorescences. Most collections placed in this species were previously identified as <i>Ocotea trichophlebia</i> Baker. This latter species differs from <i>O. grayi</i> in its pinnately veined leaves, lack of domatia and smaller leaves and inflorescences. <i>Ocotea trichophlebia</i> also occurs at higher elevations than <i>O. grayi</i>.
description: Published as part of <i>Werff, Henk Van Der, 2013, A revision of the genus Ocotea Aubl. (Lauraceae) in Madagascar and the Comoro Islands, pp. 235-279 in Adansonia (3) (3) 35 (2)</i> on pages 252-253, DOI: 10.5252/a2013n2a5, http://zenodo.org/record/5206484
description: {"references": ["VAN DER WERFF H. 1996. - Studies in Malagasy Lauraceae II. New Taxa. Novon 6 (4): 463 - 475."]}