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(Last Modified On 7/16/2013)
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(Last Modified On 7/16/2013)
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Species
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Paullinia dukei Croat.
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Note
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TYPE: Panama, Duke 14621 (MO-2209208, holo- type).
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Description
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Lianas; stems 4- or 5-sulcate when young, granular-puberulent, glabrate and terete to obscurely 3-angled in age; wood simple. Leaves 15-30 cm long, pinnately 14Paullinia dukei Croat, sp. nov. Labrusca fruticosa; corpus lignosum simplex. Folia 5-foliolata-pinnata; foliola 6.5-11.5 cm longa, 2.2-3.2 cm lata, remota-crenata-serrata supra medium; petiolus rhachisque nuda. Thyrsus elongatus, solitarius, axillaris, 10-12 cm longus. Fructus obovatus vel anguste obovatus, 2.5-3.5 cm longus, sessilis aut bevi-stipitatus; semina 2. 5-foliolate (rarely 3-foliolate); petioles terete, margined, weakly viscidulous, granular-puberulent, 7-11 cm long; rachis terete, margined; leaflets elliptic or lanceolate-elliptic to oblong-elliptic or narrowly ovate, long-acuminate at the apex, acute to narrowly rounded at the base, 6.5-20 cm long, 2.2-6.8 cm wide, weakly viscidulous, entire or remotely crenate-serrate above the middle, glabrous above except for the puberulent, prominently raised midrib, glabrous beneath except for the puberulent to hispidulous midrib and base of the lateral veins, more prominently pubescent in the vicinity of the vein axils, the major lateral veins 8-10 pairs, prominently raised beneath, sometimes joining the gland-tipped teeth at the margin. Inflorescences thyrsiform (fruit), granular-puberulent; bracteoles lanceolate-linear, sometimes bearing a tendril, to ca. 1.5 mm long. Flowers not known. Fruits obovoid to narrowly obovoid, 2.5-3.5 cm long, brown maroon (fide Duke), without wings, rounded to obtuse or shortly beaked at the apex, acute at the base, sessile to short-stipitate, glabrous, the valves striate, ca. 3 mm thick when dried, glabrous within; seeds 2, 1.3-1.7 cm long, elliptic in side-view, rounded on the outer surface, the inner surface sometimes forming an obtuse angle.
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Habit
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Lianas
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Note
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The species is named in honor of its collector James A. Duke. It is distin- guished by its wingless 5-foliolate leaves and solitary axillary thyrses with wing- less, obovoid, closely striate fruits. The species has been collected in fruit in October and November. The fruits are reportedly eaten by toucans (Duke 14621).
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Distribution
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known only from tropical moist forest in Darien Province and premontane wet forest at an elevation of 800 m in Panamai Province.
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Elevation
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800 m
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Specimen
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DARIEN: Rio Tuira, between Rio Penusa and Rio Mangle, Duke 14621 (MO). PANAMA: 5 mi N Cerro Azul, Blum et al. 1693 (DUKE, SCZ).
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