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(Last Modified On 6/5/2013)
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(Last Modified On 6/5/2013)
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Species
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Gongrostylus costaricensis (Kuntze) R. M. King & H. Robinson
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PlaceOfPublication
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Phytologia 24: 388. 1972.
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Synonym
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Eupatorium costaricense Kuntze, Rev. Gen. P1. 1: 337. 1891. TYPE: Costa Rica, Angostura, 1600 m, Kuntze (K).
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Description
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Somewhat woody, scandent, slender epiphyte with few branches; stems terete, striate, sparsely to coarsely hirsute. Leaves opposite; blades ovate, to 9.5 cm long and 4 cm wide, the base rounded with a slight acumination, trinervate, the margins with few sharp small teeth, the apex short- to rather long-acuminate, the surface sparsely short-hirsute; petioles short, distinct, 3-8 mm long. Inflorescence terminal and axillary, laxly corymbose, the ultimate branches 5-20 mm long, slender, puberulous. Heads 8-10 mm high with ca. 20 florets; involucral bracts ca. 25, subimbricate, in ca. 3 series, 2.5-10.0 mm long, ovate-lanceolate to linear- lanceolate, sharply acute, glabrous to slightly puberulous on outer surface, weakly bicostate; corolla 6.0-6.5 mm long, glabrous with glands on outer surface of lobes, the lobes very small, slightly longer than wide; enlarged style tips ca. 0.8 mm long and 0.3 mm wide. Achenes ca. 2 mm long, prismatic, glabrous; pappus mostly 4-6 mm long with ca. 30-35 bristles. Pollen ca. 20 , in diameter.
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Note
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Gongrostylus costaricensis has been known from two widely separated localities in Costa Rica and Ecuador. The new collections from Panama indicate a more continuous distribution.
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Distribution
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Costa Rica and Ecuador The new collections from Panama indicate a more continuous distribution.
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Specimen
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SAN BLAS: Road from El Llano to Cartli-Tupile, continental divide to 1 mi from Divide, 300-500 m, Liesner 1296 (MO). VERAGUAS: 5-8 km beyond Escuela Agricola Alto Piedra, 73L-770 m, Croat 25925 (MO). Rio Dos Bocas, 11 km beyond Agricultural School, 450-550 m, Croat 27537 (MO, US).
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