Ocotea macrocarpa Kosterm.
Creators: name: Werff, Henk Van Der
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Laurales
Lauraceae
Ocotea
Ocotea macrocarpa

description: 21. <i>Ocotea macrocarpa</i> Kosterm. (Fig. 8) <i>Notulae systematicae</i> 8: 90 (1939). TYPUS. — <b>Madagascar</b>. Forêts montagneuses de l’Est. <i>Service</i> des Forêts 81 (holo-, P [P00541601]!; iso-, P [P00541566, P00541567]!). SELECTED SPECIMENS SEEN. — Toamasina. Mantadia National Park, 13 km N of Andasibe, <i>Malcomber &amp; Hemingway 2748</i> (MO, P[P02008110]); between 9.5-11 km N of Andasibe, <i>Birkinshaw et al. 290</i> (MO); Moramanga, Andasibe, Menalamba, 11 km E of Ampitambe, <i>Rakotovao &amp; Edmond 1848</i> (MO, P[P06837213]). DISTRIBUTION. — Most collections with adequate label information are from Périnet, Analamazaotra, Moramanga, road Moramanga-Anosibe and R. N. III. Altitude, when indicated, is about 800 m. There is a single collection from Zahamena, north of Perinet. PHENOLOGY. — Flowers: February-March and July-August; fruits: May. VERNACULAR NAMES. — Varongy mavo, varongy, varongy fotsy, varongy mainty, varongy ravimanga. DESCRIPTION Tree, to 25 m. Twigs angular, densely (rufous) brown-tomentellous, often with conspicuous scars of old leaves or bracts, becoming glabrous with age; terminal buds densely tomentellous. Leaves alternate, subcoriaceous, lanceolate-elliptic to elliptic, 8-15 × 2-5.5 cm, base acute, apex acute or slightly acuminate, margin flat or slightly inrolled, but base of leaves plane, upper surface glabrous, lower surface sparsely appressed pubescent or glabrous, lateral veins 8-11, immersed on both surfaces and poorly visible, reticulation immersed, not or scarcely visible, domatia absent. Petioles tomentellous, glabrous with age, 1.5-2.5 cm long, striate, flat on upper side. Inflorescences along leaf less short shoots, or in axils of bracts near tip of twigs, brown-tomentellous, 3-8 cm long. Flowers 8-9 mm in diameter, tepals 6, equal, pubescent on both surfaces, 3-4 mm long; stamens 9, 4-celled, 1.5 mm long with short (0.5 mm), pubescent filaments, inner three with 2 globose glands, near the base, staminodia 3, minute pubescent; pistil glabrous, ovary gradually narrowed into style, receptacle deep, densely pubescent inside. Tepals deciduous in old flowers. Fruits ellipsoid, 25 × 18 mm, cupule cupshaped, 2 cm in diameter, 1 cm deep, the pedicel not thickened. REMARKS Characteristic for <i>O. macrocarpa</i> are the tomentellous twigs, densely pubescent inner surface of the receptacle and narrowly elliptic leaves with a flat (not inrolled) base. This species resembles <i>O. auriculiformis</i>, but that species has inrolled leaf bases. These two species have a different distribution. <i>O. macrocarpa</i> is only known from Périnet-Moramanga or further north, while <i>O. auriculiformis</i> occurs from Ambositra southwards. Kostermans (1957) cited also <i>SF 5238</i> under <i>O. macrocarpa</i>; this collection however has a glabrous interior wall of the receptacle and I exclude it from <i>O. macrocarpa</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 page 260, DOI: 10.5252/a2013n2a5, http://zenodo.org/record/5206484
description: {"references": ["KOSTERMANS A. J. G. H. 1939. - Enumeratio Lauracearum Madagascariensium et ex Insulis Mascarenis. (Revisio Lauracearum VI). Notulae systematicae 8 (2): 67 - 128.", "KOSTERMANS A. J. G. H. 1957. - Le genre Ocotea Aubl. (Lauracees) a Madagascar. Communication (Pengumuman) of the Forest Research Institute 57: 1 - 44."]}