Swartzia caudata R.S.Cowan
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Authority
Cowan, Richard S. 1967. Swartzia (Leguminosae, Caesalpinioideae Swartzieae). Fl. Neotrop. Monogr. 1: 3-228. (Published by NYBG Press)
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Family
Fabaceae
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Scientific Name
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Type
Type collection. B. Maguire, R. S. Cowan & J. J. Wurdack 29734 (holotype US 2253818; isotype NY), near the base of Cerro Duida at N end, upper Río Cunucunuma, Amazonas, Venezuela, Nov. 26, 1950.
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Description
Latin Diagnosis - Arbor ca 10 m alta, ramulis novellis minute strigulosis demum glabrescentibus; stipulae foliaceae deciduae coriaceae glabrae 11-26 mm longae, 5-12 mm latae, falcatae ellipticae ad lanceolatae acutae; petiolus teres, 18-38 mm longus, glaber; rhaches teretes, 14-24.5 cm longae, glabrae haud stipellatae; foliola (2-)3- vel 4-jugata, petiolulis 4-7 mm longis, glabris, jugorum basalium laminis minoribus, 11-18.5 cm longis, 4-8.5 cm latis, jugorum reliquorum eis 15-28 cm longis, 4.5-11 cm latis, laminis omnibus ellipticis ad oblongo-ellipticis, basi acutis, apice caudato-acuminatis, supra glabris, subtus plus minusve minute strigulosis, glabrescentibus, venis primariis supra planis vel leviter impressis subtus salientibus; inflorescentiae racemosae vel paniculato-racemosae axillares vel ramulis enatae, axe minute strigu-loso, bracteis foliaceis deciduis 8 mm longis, 3 mm latis, ellipticis acutis extus minute albo-strigulosis intus glabris, bracteolis caducis foliaceis, 3-4 mm longis, 1-1.5 mm latis anguste ellipticis acutis extus minute albo-strigulosis intus glabris infra medium pedicellorum nascentibus; pedicelli 4-5 mm longi, dense minuto-strigulosi; alabastra ovalia, ca 7 mm longa; calycis segmenta 4 vel 5, decidua, extus dense minuto-strigulosa intus glabra; petalum luteum glabrum, unguiculo 5-6 mm longo, lamina orbiculari ad suboblata basi truncata, 12-13 mm longa, 13-16 mm lata; stamina maiora 4, glabra, filamentis ca 8.5 mm longis, antheris oblongis, 1.5 mm longis, 0.5 mm latis, minora glabra, filamentis 5 mm longis, antheris ovalibus, 1 mm longis; gynoecium glabrum nigrum, stigmate punctiformi, stylo 2 mm longo, ovario 4-5 mm longo, 1.5 mm lato, anguste elliptico arcuato, gynophoro 4.5-6 mm longo; fructus immaturus obovatus ca 2.5 cm longus, stipite 7-9 mm longo.
Distribution and Ecology - (Fig. 20). Known only from the type locality, in lowland forest on sandy soil at ca 200 m alt. in the southwestern part of Venezuela.
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Discussion
There is considerable superficial resemblance between this species and S. discocarpa, but the foliaceous stipules, bracts, and bracteoles of the present species link it more closely to S. recurva. Unlike the latter species, S. caudata does not have the calyx segments densely pubescent on the inner surfaces. From S. krukovii the new species differs in having the leaflets densely strigulose beneath, foliaceous stipules, bracts, and bracteoles, and relatively shorter gynophores.
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Distribution
Venezuela South America| Amazonas Venezuela South America|