Rinorea domatiosa A.e.van Wyk

Species

Angiosperms > Malpighiales > Violaceae > Rinorea

Characteristics

Evergreen shrub or tree up to 10 m high; bark rather smooth, grey. Branches slender, terete, green becoming yellowish-brown, brown or greyish-brown when mature, often with whitish lenticels, surface of juvenile parts glabrous to densely brownish-pubescent. Leaves alternate; lamina narrowly elliptic, elliptic or obovate, (30)50-70(85)mm long, (15)20-30(35) mm wide, base subrotund, rotund or rarely cuneate, apex acuminate, margin sharply or bluntly serrate with teeth gland-tipped, subcoriaceous, dark green and shiny above, pale greyish-green below, pellucid dotted (mucilaginous epidermal cells) when illuminated by transmitted light; midrib prominently raised above and below in dried and fresh leaves, usually glabrous or rarely sparingly pubescent; principal lateral veins alternate or opposite, 4-7 pairs, plane or slightly submerged above and slightly raised below in fresh leaves, raised on both surfaces in dried leaves; conspicuous rusty brown hair-tuft domatia present in most primary vein axils below; petiole 3-6 mm long, semi-terete in fresh leaves, channelled above in dried leaves, very sparingly to densely brownish-pubescent; stipules small, caducous. Inflorescences (1)2-6(7)-flowered, axillary, simple, racemose or subcorymbose, peduncles ca.10-20 mm long, sparingly to densely brownish-pubescent, bracts and bracteoles minute, fleshy, cucullate, caducous. Flowers pentamerous, all floral parts (including the pedicel but excluding the ovary) white but turning cream with age and in dried specimens, sweetly scented; pedicels ca. 10-20 mm long, articulated, sparingly pubescent; buds conical, white. Sepals ovate, often slightly keeled, 1.5-2 mm long, margins ciliate, usually densely brownish-pubescent outside near the apex, persistent. Petals oblong-elliptic, ca. 7 mm long, upper part reflexed, whitish-pubescent towards the base, margins often shortly and sparingly ciliolate. Stamens with the filaments fused at the base and with a dorsal appendage forming a short (ca. 0.75-1 mm wide) fringed and often irregularly lobed cup; anthers with an apical, erect, often decurrent, ovate-acuminate connective appendage with the upper part converging towards the style, ca. 4.5 mm long, 1.5-2 mm wide, margin strongly revolute (conspicuous in fresh material), thecal appendages absent. Ovary globose, glabrous, dark green when fresh; style erect, terete, exserted beyond connective appendages, ca. 5.5 mm long; stigma minute, apical. Capsule (slightly immature) ovate, ca. 15 mm long, apex acute, constricted at the base to form a short stipe, ca. 2 mm long, clearly 3-sided, woody, muricate, yellowish-green marked with small reddish-brown dots; seed 1 per valve, ellipsoid, 8 mm long, yellowish-brown, smooth with the hilum surrounded by a small arillate swelling. Flowering from September to October. Fruits collected in November.
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Evergreen tree or shrub, 1.5-8.0 m high. Leaves narrowly elliptic to oblong, ± 70 x 30 mm, slightly leathery, with translucent gland dots, lateral veins slightly ridged below, rusty brown hair-tuft domatia in their axils, base rounded, apex acuminate, margins bluntly toothed with gland-tipped teeth; petioles 3-6 mm long; stipules small. Inflorescence axillary, simple. Flowers: pedicels ± 20 mm long. Sepals 1.5-2.0 mm long, margins ciliate. Petals: upper part reflexed, whitish-pubescent. Stamens with filaments connate below, anthers 1.5 x 2.0 mm, connective appendages. Ovary with style 5.5 mm long. Flowering time Sept., Oct. Fruit an ovate capsule, 2 mm long, 3-lobed, yellowish green. Seeds 1 per valve, ellipsoid, 8 mm long, yellowish brown.
Life form -
Growth form
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Spread -
Mature width (meter) -
Mature height (meter) 5.75 - 9.0
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Environment

Light -
Soil humidity -
Soil texture 7-8
Soil acidity -
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Hardiness (USDA) 9-11

Usage

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Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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Distribution

Rinorea domatiosa world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:902954-1
WFO ID wfo-0001144753
COL ID 4T49D
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rinorea domatiosa