Rinorea laurifolia L.B.Sm. & A.Fernández
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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. Santander: Vic. Puerto Berrio, between the rivers Carare and Magdalena, 100-700 m, Jul 1936 (fl), Haught 1908 (holotype, COL; isotype, US).
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Description
Species Description - Tree; branchlets sparsely pilosulous. Leaves alternate; petioles 5-16 mm long, glabrous; stipules deciduous, narrowly ovate to deltoid, acuminate, 2.5-3 x ca. 1 mm, herbaceous, ciliolate, subacute; lamina (narrowly) ovate, acuminate, 8-16 cm x 4.5-7.5 mm, coriaceous; lamina, costa and lateral veins glabrous on both sides; lateral veins 9-11 pairs (acumen excluded); tertiary venation ± scalariform; base rounded, slightly decurrent into the petiole; margin subserrate to subentire; acumen 0.75-1.75 mm long, apex subacute, mucronulate. Inflorescences axillary, lateral and subterminal, 1-4 fasciculate, 3-3.75 x 0.75-1 cm; central axis puberulous; pedicels 1.75-3.5 mm long, articulate at from the base, puberulous; bracts and bractlets herbaceous, pilose(ulous), ciliolate; bracts ca. 1 x ca. 0.75 mm, elliptic, obtuse; bractlets close to the bracts, ca. 0.75 x ca. 0.5 mm, ovate, subobtuse. Flower buds ovoid to tolpoid. Sepals subequal, ovate to elliptic, 0.75-1.25 x 0.75-1 mm, herbaceous, pilosulous, ciliolate. Petals ovate, 3-3.5 x ca. 1 mm, herbaceous; base subcordate, pilosulous outside; margin completely glabrous; apex (sub)obtuse, pilosulous outside. Stamens 2.25-3 mm long; filaments (nearly) completely free, 0.3-0.5 x 0.2 mm, pilose to glabrous; dorsal glands free, erect, ovoid to conical, 0.1-0.2 mm long and wide, sometimes fused with the filaments or apparently wanting; anthers deltoid to ovoid, 0.9 x 0.3-0.4 mm, glabrous, apex obtuse to apiculate, unappendaged; connective outside, deltoid, 0.75 x 0.25 mm, pilose to glabrous; connective scales lateral as well as apical, ovate, 2-2.25 x 0.75-1 mm, scarious, brown, margin suberose, apex rounded to obtuse. Ovary subglobose to obscurely 3-lobed, 0.75-1 mm in diam., pilosulous along the ribs and near the apex; ovules one per placenta. Style subclavate, erect, 2-2.5 mm long, exceeding the stamens by 0.2-0.5 mm; stigma truncate. Fruits unknown.
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Discussion
Rinorea laurifolia differs from R. cordata and R. haughtii mainly by its relatively small anthers, only ca. 1 mm long and less than 0.5 mm wide.
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Distribution
Known only from the type collection in the valley of Río Magdalena, Santander, N Colombia, between 100 and 700 m.
Colombia South America| Santander Colombia South America|