Swartzia cabrerae 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. R. E. Schultes and I. Cabrera 15457 (holotype US 2171604, 2171605; isotype NY), La Playa, Raudal Yayacopi, Río Apaporis, Amazonas-Vaupés, Colombia, Feb. 1952.
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Description
Latin Diagnosis - Arbor ramulis dense pilosulosis; stipulae persistentes, 5-6 mm longae, ca 2 mm latae, anguste oblongo-lanceolatae acutae falcatae extus dense strigulosae intus glabrae; petioli (4-)5-9 cm longi, pilosuli teretes, rhachibus 22-26 cm longis, leviter canaliculatis ad basim jugorum stipellatis dense pilosulosis; foliola 4-jugata, petiolulis 3-5 mm longis, pilosulis, laminis ellipticis ad oblongo-ellipticis cuneatis sed basi ipsa obtusis, apice longe acuminatis, supra in costa dense pilosulosis, infra in costa venisque primaris leviter minute strigulosis, jugi infimi laminis minoribus, 10-12.5 cm longis, 4-5 cm latis, jugorum reliquorum eis 14-27 cm longis, 5-7 cm latis, costa leviter impressa sed venis primariis supra planis, infra costa et venis salientibus; inflorescentiae racemosae ramigerae vel cauligerae, 14-18 cm longae, axe dense striguloso minute, bracteis persistentibus, triangulari-ovatis, acutis, 1.5 mm longis, extus minute strigulosis, intus glabris; bracteolae nullae; pedicelli 5.5-6 mm longi, minute strigulosi; alabastra elliptica, ca 9 mm longa et 7 mm diametro; calycis segmenta 4, extus leviter minuto-strigulosa intus glabra; petalum luteum, intus glabrum, extus in costa leviter strigulosum, unguiculo ca 2 mm longo, lamina ovali, basi truncata sed in unguiculo attenuata, 12-12.5 mm longo, 8-10 mm lata; stamina maiora 8, filamentis 5 mm longis, leviter strigulosis, antheris ca 4.5 mm longis et 1 mm latis, anguste lanceolatis, connectivo mucronato, glabro, minora glabra, filamentis 7-9 mm longis, antheris lanceolato-ovatis, 1.5-2 mm longis, 0.7 mm latis, connectivo mucronato; stigma obliquum, obtusum, sessile; stylus nullus; ovarium 2.5 mm longum, 0.7 mm latum, anguste arcuato-oblongum, in latere abaxiali leviter strigulosum, gynophoro ca 2 mm longo, in latere abaxiali striguloso; fructus non visus.
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Discussion
The sessile stigma of this species is sufficient to separate it from all others, especially among those with mucronate anther connectives. The gynoecium is similar to that of S. davisii but it is probably not much closer to that species than to any of the other members of the S. laurifolia complex.
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Distribution
(Fig. 7). Known only by the type collection, from the upper Amazon Basin on soils overlying quartzite at ca 250 m alt.
Colombia South America| Vaupés Colombia South America| Amazonas Colombia South America|