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(Last Modified On 9/16/2013)
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(Last Modified On 9/16/2013)
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Species
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Psychotria orchidearum Standley
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PlaceOfPublication
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J. Wash. Acad. Sci. 18: 276. 1928.
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Note
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TYPE: Costa Rica, Standley & Valerio 50863 (US, holotype).
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Description
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Epiphytic subshrub, to 30 cm, the branchlets terete, smooth, glabrous, the nodes well spaced, occasionally swollen. Leaves oblong, obovate oblong, oblong rotund to elliptic, 1.8-8.0 cm long, 0.8-3.5(-4.5) cm wide, often inequilateral, tapering obtusely, deltoid or acute at the apex, usually conspicuously shortly acuminate, acute to obtuse occasionally rounded at the base, often inequilateral, the costa subplane above, prominulous beneath, the lateral veins 4-6(-7), eva- nescent or obvious, strongly arcuate, the intervenal areas indistinct, succulent, drying thinly to thickly coriaceous, concolorous or discolorous, smooth or wrin- kled on drying, glabrous; petioles to 1 cm long, slender to stout, 0.15-0.32 cm wide, glabrous; stipules annular, cylindrical, 3-4 mm long, usually slightly wider than long, stiffly scarious, smooth, glabrous. Inflorescences bright red, terminal or occasionally axillary, glabrous, to 6 cm long, occasionally slightly wider than long, paniculate when the branches are paired and arising along the rachis or subcorymbiform when the branches arise verticillately from the apex of the pe- duncle, the peduncles to 2.5 cm long, to 1.2 mm wide, the branches strongly ascending or reflexed, to 2 cm long, branching dichotomously or terminating in several verticillate branches, the flowers few. Flowers subsessile or with pedicels to 2.5 mm long; hypanthium red, pubescent and minutely granulose, the calycine cup short or absent, usually with 4 triangular teeth, to 0.4 mm long, acute; corolla white or magenta, the tube narrowly cylindrical, to 3 mm long, glabrous outside, villose within at the point of filament attachment, the lobes 4, oblong, ca. 0.35 mm long, obtuse; stamens 4, the anthers oblong, rotund, ca. 0.6 mm long, the filaments short; stigmas 4, the styles linear, the ovary 4-celled, the ovules 1 per locule, attached basally. Fruits orange red, fleshy, subrotund to obovate-rotund, ca. 3-4 mm in diameter; truncate, glabrous, usually appearing 8-sulcate (4 py- renes) on drying.
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Habit
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subshrub
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Distribution
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known from Costa Rica and Panama.
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Note
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The use of the specific name orchidearum is a stop-gap measure, as the taxonomy of the epiphytic Psychotria is in disarray. The 4-carpellate nature of the pistil is note- worthy.
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Specimen
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CANAL ZONE: Between Fort San Lorenzo and Fort Sherman near Pavon Road junction with Road 82 (S 2), Mori & Kallunki 2722 (MO). PANAMA: 10 km N of El Llano on Carti Road, ca. 400 m, Busey 919 (MO). Cerro Jefe, ca. 950 m, Elias & Hayden 1804 (GH, MO). 16 km above Panamerican Highway, El Llano to Carti Tupile, Kennedy et al. 2431 (MO). La Eneida, Luteyn & Foster 1123 (MO). Cerro Jefe, ca. 950 m, Tyson et al. 3199, 3400, 4381 (all MO); Witherspoon et al. 8274 (MO).
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