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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 impatiens Dwyer
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Note
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TYPE: Panama, Mori & Kallunki 5446 (MO).
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Description
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Shrubs to 2 m tall, the twigs leafless except terminally, terete, finally angular, the bark grey when dry, glabrous, the nodes moderately turgid, crowded. Leaves (immature) ovate lanceolate, to 2.6 cm long, 0.7-1.0 cm wide, acute at the apex, cuneate at the base, the costa prominulous on both sides, the lateral veins ca. 7,
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Habit
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Shrubs
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Description
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arcuate, the submarginal vein to 1 mm from the margin, membranous, concol- orous, glabrous; petioles absent or to 1 mm long; stipules persistent toward the tips of the twigs, connate basally, ovate elliptic, to 3 mm long, 1.5 mm wide, acute, glabrous. Inflorescences terminal, compressed paniculate, shorter than the leaves, to 1.2 cm long, to 1.5 cm wide, the peduncle obsolete, with few, ascending branches, the flowers ca. 12, the bracteoles minute, ovate. Flowers subsessile, the hypanthium to 1 mm long, glabrous, the calycine cup moderately turgid, 0.3 mm long, the lobes 5, triangular, 0.3 mm long, often spreading or somewhat reflexed; corolla white, the tube narrowly cylindrical but inflated toward the apex, 5-6 mm long, glabrous outside, villose within above the middle, the lobes 5, narrowly oblong, to 3 mm long, sparsely pubescent within; style linear, to 7 mm long, the stigmas oblong, to 1.7 mm long, obtuse. Fruits not seen.
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Distribution
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known only from Panama.
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Note
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Its precocious inflores- cence is unique among the Psychotria of Panama. The juvenile leaves are virtually sessile and crowded at the tips of the twigs. The nodose character of the twiglets is diagnostic as are the spreading subcoriaceous stipules which seem connate basally, drying a dull brown. The much reduced inflorescence is noteworthy.
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Specimen
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DARIEN: N slope of Cerro Pirre, lower montane rain forest (cloud forest), ca. 700-950 m, Mori & Kallunki 5446 (MO).
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Project Name
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