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(Last Modified On 11/15/2012)
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(Last Modified On 11/15/2012)
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Species
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SCHRANKIA LEPTOCARPA DC.
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PlaceOfPublication
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Prodr. 2:443. 1825.
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Synonym
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Leptoglottis leptocarpa (DC.) Standl. in Jour. Wash. Acad. 15:458. 1925. ?Schrankia trijuga Goyena, Fl. Nic. 1:379. 1909.
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Description
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Perennial, subherbaceous plant, decumbent, -straggling or somewhat scandent; branchlets lightly to heavily armed with recurved thorns, glabrous, angled or sub- tetragonal. Leaves moderate but slender and lax, bipinnate, the pinnae mostly 2-3 pairs (rarely 1 or 4-5 pairs), the leaflets ordinarily about 10-15 pairs per pinna; petiole elongate, 2-8 cm. long, subglabrous, generally armed like the branchlets, eglandular; rachis 1-4 cm. long, similar to the petiole, bearing above at insertion of the pairs of pinnae 1-2 subulate, stipule-like appendages (these sometimes cadu- cous); pinnae 1-4 cm. long, callous basally and usually bearing there a pair of minute, bract-like mucrons; leaflets linear-oblong to narrowly obovate-elliptic, 3-10 mm. long and 1-2 mm. wide, rounded-submucronate or obtuse apically, inequilaterally rounded basally, glabrous except ciliate-margined, dull, the venation obscure; stipules linear-subulate, curved, few to several mm. long. Inflorescence of axillary, pedunculate heads; peduncles short, mostly about 1 cm. long, eglandular; heads several-flowered, orbicular, the bractlets lanceolate or oblanceolate. Flowers subsessile, pinkish; calyx campanulate, considerably less than 1 mm. long, glabrous, irregularly 5-toothed; corolla funnelform-campanulate, about 2 mm. long, gla- brous, the 5 teeth almost equalling the tube; stamens 10, about 6 mm. long, free, glabrous, the anthers ovate-orbicular; ovary substipitate, verrucose. Legume linear, up to 12 cm. long, acuminate-subulate, moderately aculeate, the thorns in 3 rows on each margin with an additional row on each valve, subglabrous, the valves separating from the margins in dehiscence.
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Distribution
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Central America and West Indies to middle South America; introduced into Old World tropics.
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Specimen
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CANAL ZONE: Anc5n, Pittier 6769. COCLE: Aguadulce, Pittier 4835; Penonome, Williams i09. PANAMA: Las Sabanas, Bro. Heriberto 263; Standley 25935.
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Note
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Certain species of Mexico and the southern United States are remarkably similar to S. leptocarpa. For example, S. Roemeriana, a number of specimens commonly passing as S. microphylla (-_ S. horridula, = S. uncinata, = S. angustata), and several Small and Britton & Rose species are difficultly separable from it. Yet the name S. leptocalpa has priority over most possible synonyms, and will likely endure.
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