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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 pilosa Ruiz & Pavon
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PlaceOfPublication
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Fl. Peruv. Chil. Prodr. 2: 60. 1799.
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Note
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TYPE: Peru, Ruiz (B, isotype labeled "Psychotria pilosa in Peruviae nemoribus," not seen; photo, MO).
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Description
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Shrubs to 3 m tall, the branchlets terete, hirsute, the nodes occasionally prox- imate, usually well spaced, 2.0-5.5 cm apart. Leaves oblong, occasionally oblong rotund, 10-40 cm long, 4.5-17.0 cm wide, rounded or deltoid at the apex, the acumen to 1.5 cm long or longer, often falcate, the base obtuse, acute or widely cuneate, occasionally subrotund, the costa slender, prominulous above, promi- nent beneath, the lateral veins 15-20, widely arcuate, prominent beneath with 1- 2 subparallel veins between adjacent lateral veins, the minor veins pinnatiform, the intervenal areas patulous reticulate, stiffly chartaceous, concolorous, pilose above and beneath; petioles to 2.5 cm long, densely pubescent; stipules connate, the sheath to 2 cm long, each part oblong rectangular or ovate oblong with 2 widely subulate lobes, to 0.7 cm long, ca. 0.3 cm wide at the base, often somewhat divergent, widely scarious margined, villose outside. Inflorescences terminal, solitary, often nodding, cymose paniculate or disposed as a capitate mass of flowers, 6-12 cm long, 2.5-6.0 cm wide; peduncle elongate, 5.0-6.5 cm long, ca. 0.25 cm wide, villose, the lowermost branches 3-4, radiate, 0.5-2.0 cm long; bracts oblong or ovate lanceolate, 4.8-7.0 mm long, usually acute or deltoid at the apex, thickly petaloid, villose inside and out. Flowers sessile; hypanthium oblong, densely bearded, the calycine cup scarcely measurable, eglandular with- in, the lobes (4-)5(-6), unequal, triangular or subulate, 1-2 mm long, densely hirsute; corolla white, to 1.5 mm long, villosulose within at filament attachment, the lobes 5, oblong, 0.5 mm long, cucullate; stamens 5, the anthers oblong, 0.65 mm long, the filaments 0.5 mm long; style 1 mm long, the stigmas minute. Fruits with the pyrenes oblong, to 4 mm long, obtuse at the apex, costate, densely bearded, the hairs soft, white, usually more dense at each pole, dark blue or china blue.
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Habit
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Shrubs
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Distribution
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known from Costa Rica, Panama, and from northern South America to Peru.
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Note
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Among the Panamanian Psychotria it is readily distin- guished by its large scarious-margined stipules, its many-veined leaves which are hairy beneath, and its densely pilose inflorescence. Most collections note that it is 2-3 m tall. Croat 25777 records a height of 5.5 m. The single collection from San Blas, Liesner 1311, has leaves twice the size of the other collections from the Republic. The fruits are described on several collections as blue, china blue, dark blue purple, and black. The clusters of fruits are described by Mori et al. 3819 as "grapelike." Mori & Kallunki 3152 note that the tree is "slender, few and laxly branched."
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Specimen
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BOCAS DEL TORO: Without other locality, Wedel 174 (MO). Nievecita, Woodson et al. 1831 (MO). CHIRIQUI: 1 mi E of Cafnas Gordas, near Costa Rica border, Croat 22325 (MO). COCLE: Cerro Pil6n, Dwyer 8309, 8349 (both MO); Dwyer & Lallathin 8605, 8964 (both MO); Dwyer et al. 4485 (MO). El Valle, La Mesa, Kennedy et al. 3029 (MO). Cerro Pil6n, Lallathin 2-C, 2D, 30-C (all MO). La Mesa, 4 km N of El Valle, 850 m, Nee & Dwyer 9192 (MO). DARIEN: Cerro Pirre, Bristan 469 (MO); Duke 5346 (MO); Duke & Elias 13783 (GH, MO, US). PANAMA: Carti Tupile road, 12 mi above Panamerican Highway, 200-500 m, Liesner 1199 (MO). Gorgas Memorial Lab, 5-10 km NE of Altos de Pacora, Mori & Kallunki 3418 (MO). SAN BLAS: Road from El Llano to Carti-Tupile, 300-500 m, Liesner 1311 (MO). VERAGUAS: Valley Rio Dos Bocas, 11-13 km beyond Agricultural School, Santa Fe, 350-500 m, Croat 25777 (MO). Valley of Rio Tercero Braso beyond Escuela Agricola Alto Piedra, Santa F&, Croat 27340 (MO). 11 km from Escuela Agricola Alto de Piedra, Mori & Kallunki 3152, 3180 (both MO); Mori et al. 3819 (MO).
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