Rinorea marginata (Triana & Planch.) Rusby
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Authority
Hekking, W. H. A. 1988. violaceae Part l—Rinorea and Rinoreocarpus. Fl. Neotrop. Monogr. 46: i-ii, 1-208. (Published by NYBG Press)
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Family
Violaceae
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Scientific Name
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Type
Type. Colombia. Tolimá: Paso de Opia along the Río Magdalena, between Bogotá and Maraquita, 500 m, 1854 (T851-1857 ) (fl, fr), Triana s.n. (lectotypus novus, probably original holotype, P; isotypes, BM, COL, F, Fl, G, K, MEXU [ 600 m ], NY, W).
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Synonyms
Alsodeia marginata Triana & Planch.
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Description
Species Description - Treelet. Branchlets whitish pilosulous. Leaves apparently opposite; petioles 2-7 mm long, whitish pilosulous; stipules deciduous, ovate to deltoid, 2-2.5 x ca. 1.5 mm, coriaceous, strigose along the costa, ciliolate, apex (sub)obtuse; lamina (narrowly) elliptic, acuminate to cuspidate, 4-11.5 x 1.5-4.5 mm, coriaceous, glabrous above, whitish to yellowish hirtellous beneath; costa above slanting whitish pilosulous to glabrescent; lateral veins 6-12 pairs (acumen excluded); tertiary venation densely reticulate, more prominent beneath than above; base rounded, slightly decurrent into the petiole; margin entire, thick walled especially beneath, yellowish or whitish colored, rudimentarily mucronulate; acumen 0.3-1 cm long, apex subobtuse to subacute, mucronulate. Inflorescences axillary, lateral and subterminal, solitary, racemose, (1-)2-3.5 cm long, central axis golden hispidulous; pedicels 1.75-3 mm long, articulate at 1/3-2/3 from the base, golden to brownish hispidulous; bracts and bractlets ovate to deltoid, herbaceous, strigose along the costa, margin ciliolate, apex subacute, sometimes mucronulate; bracts 0.75-1 x ca. 0.75 mm; bractlets 0.6-0.8 x ca. 0.6 mm. Flower buds ovoid to conical, obtuse. Flowers pendulous, color unknown. Sepals subequal to unequal, outer sepals ovate to deltoid, inner ones ovate to orbicular, 1.25-2 x 1.25-1.75 mm, herbaceous, golden to whitish strigulose along the costa especially near the apex, 7-9 veined, 7-9 ribbed when dried, margin golden to whitish ciliolate, apex subobtuse to subacute, sometimes mucronulate. Petals ovate, 3.75-4.75 x 1.25-1.5 mm, herbaceous, predominantly glabrous, margin whitish ciliolate near the base, apex obtuse and slightly pilosulous. Stamens 3.25-3.75 mm long; filaments free, ca. 0.5 x ca. 0.25 mm, glabrous; dorsal glands free, adnate to the filaments, obovate to subclavate, ca. 0.5 x 0.2-0.4 mm, carnose, sparsely pilosulous, apex free, subobtuse; anthers ovoid, 1.4-1.8 x ca. 0.75 mm, apex of thecae obtuse, usually appendaged by (1-)2 cusps, ca. 0.2 x 0.05-0.1 mm; connective outside narrowly deltoid, obtuse, 1-1.25 x ca. 0.25 mm, sparsely pilosulous to glabrescent; connective scales lateral as well as apical, ovate, 2.75-3.25 x ca. 1 mm, scarious, orange-brown, margin suberose near the base, apex obtuse. Ovary pyriform to subconical, 1-1.25 x 0.3-0.4 mm, golden-brownish strigose; ovules three to four per placenta. Style filiform, erect, 2.25-2.5 mm long, equaling the stamens, slanting pilosulous at the base; stigma truncate, subobtuse or subacute. Capsule more or less symmetric, ovoid, acuminate, coriaceous to subligneous, slightly pilosulous to glabrescent, veined; valves three, (sub)equal 3.25-3.5 x 0.75-1 cm. Seeds two to three per valve, 7.5-10 x 7.5 mm, golden-brownish pilosulous.
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Discussion
Rinorea marginata is characterized by the combination of the following characters: (1) an erect pilosulous indument on the underside of the leaves; (2) a thick walled and entire leaf margin; and (3) the number of ovules three, occasionally four per carpel.
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Distribution
Known only from the type collection on the river banks of the southern Río Magdalena valley in Colombia (Tolimá), at 500 m.
Colombia South America| Tolima Colombia South America|