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(Last Modified On 9/10/2013)
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(Last Modified On 9/10/2013)
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Species
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Macrocnemum pastoense Karst.
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PlaceOfPublication
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Linn. 30: 150. 1859.
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Note
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TYPE: Colombia, Karst.
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Description
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Trees to 8 m tall or shrubs, the branchlets terete, ultimately angular, smooth, minutely puberulent. Leaves oblong, oblong rotund or obovate oblong, 6-17 cm long, 4-10 cm wide, widely deltoid to rounded at apex, acuminate, the acumen short, widely deltoid, to 0.5 cm long, ultimately obtuse or acute, the base rounded or obtuse, the blade occasionally contracted at proximal 113, the costa plane or prominulous above, prominent beneath, the intervenal areas spreading reticulate, papyraceous, tending to dry dark at least on the upper side, glabrous above, puberulent beneath, barbate in the axils; petioles to 3 cm long, stiff, puberulent; stipules persistent only below inflorescence, oblong, oblong rotund to ovate ob- long, 3 cm long, obtuse or acute, rimose, puberulent. Inflorescences solitary, terminal, occasionally terminal and axillary, cymose paniculate, to 22 cm long, to 10 cm wide, the peduncle to 12 cm long, terminated by a pair of reduced leaves, the lowermost branches opposite, to 7 cm long, divergent or arcuate ascending, the branches divided into 2 branchlets. Flowers sessile, the hypan- thium densely golden puberulent, the calycine cup short, the 5 triangular teeth ca. 1 mm long, longer than the cup, golden puberulent; corolla purple or lilac, the tube narrow cylindrical 6-8 mm long, puberulent outside, glabrous within, thinly carnose, the lobes 5, in bud disposed as a hemispherical capitate mass to 0.3 cm long, 0.5 cm wide, when expanded the lobes hemispherical, wider than long, puberulent, the margin undulate; stamens 5, the anthers oblong, ca. 0.7 mm long, curved when mature, subversatile, the filaments slender, to 6 mm long, villose below the middle, attached below the middle of the tube; style slender, ca. 7 mm long, glabrous, the stigmas 2, when separated scarcely wider than the style, 0.3 mm long. Fruits not seen.
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Habit
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Trees
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Distribution
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known only from Panama and Colombia.
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Specimen
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DARIEN: Pinias, Duke 10610 (M(. Rio Tuira, near mouth of Rio Paya, Gentry 4426 (MO). Yaviza along Rio Chucunaque at El Punteadero, Stern et al. 173 (MO). COLOMBIA: CHOCO: Rio Mutata tributary Rio El Valle, between base of Alto de Buey and mouth of river, 100-150 m, Gentry & Fallen 17459 (MO).
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