Eperua venosa R.S.Cowan
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Authority
Maguire, Bassett & Wurdack, John J. 1958. The botany of the Guayana Highland--Part III. Mem. New York Bot. Gard. 10: 1-156.
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Family
Caesalpiniaceae
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Scientific Name
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Description
Latin Diagnosis - Arbor ( ?), ramulis foliisque glabris; stipulae deciduae, glabrae, triangulares. acutae, rigidae, ca. 5 mm longae; petiolus cylindricus, 33 mm longus, rachibus 40 mm longis, cylindrieis; foliola bijugata, petiolulis 8-10 mm longis, transverse corrugulatis, laminis 20-22 cm longis, 8.5-9 cm latis, base obtusis (paribus apicalibus base obliquis), apice acuminatis, valde venosis, costa venis venulisque plus minusve salientibus, margine leviter recurvatis et nervo marginali pergracile praeditis; inflorescentia 14.5 dm longa, pedunculo 10 dm longo, leviter puberulo. ramulis distantibus, 3-4 cm longis, puberulis, pedicellis ca. 15 mm longis, puberulis; hypanthium cupulare, crassum, 7 mm longum, dense strigulosum, sepalis inaequalibus, coriaceis, 25-30 mm longis, 11-17 mm latis, oblongis, apice rotundatis (uno cucullato), externe strigulosis (saltern usque ad medium), intus glabris; petalum latoflabelliforme, 25-34 mm longum, 48-60 mm latum, externe ad basim strigulosum; stamina 10, unum liberum, filamentis alteris tubo 10 mm longo cohaerentibus, filamentis ca. 50 mm longis, basaliter strigosis, antheris 8.5-9 mm longis, oblongis, glabris; stigma bilobatum, capitellatum; stylus ca. 45 mm longus, glaber; ovarium oblanceolatum, 10 mm longum, 4.5 mm latum, luteo-sericeum; fructus ignotus.
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Discussion
Figure 17.
Type Collection: H. R. Kunhardt 20 (unicate, holotype NY), Angel Falls, Edo. Bolivar, Venezuela.
Unfortunately only a single sheet of this interesting species was collected, but additional collections may be anticipated, since the type locality is visited occasionally for its scenic beauty.
The coriaceous, strongly venose leaflets are distinguishing characteristics of the new species. It is related to E. falcata and to E. rubiginosa, perhaps most closely to the former, from which it differs in having larger but fewer, more coriaceous and venose leaflets, larger flower parts, and different pubescence on many of the parts.