86 



MEMOIRS OF THE NEW YORK BOTANICAL GARDEN 



[vol. 10 



LEGUMINOSAE — LOTOIDEAE 



Cyclolobium amazonicum Ducke. 



VENEZUELA: Amazonas: along Rio Orinoco just below mouth of Cafio Yapacana, alt. 

 125 m; tree 6 m; petals deep maroon; 30 Jul 1959, Wurdack 4- Adderley 4367. 5. 



This is the first collection reported from Venezuela of a species better known 

 in the upper Rio Negro drainage of adjacent Brazil. 



Dalbergia riedelii (Radlk.) Sandw. 



VENEZUELA: Amazonas: frequent along Rio Casiquiare just above C'apihuara, alt. 130 

 m; woody vine climbing 3-7 m; rls white; 24 Jun 1959, Wurdack 4' Adderley 43164; along 

 Rio Casiquiare just above Piedra Guanare, alt. 110 m; woody vine climbing 3 m ; fls white, 

 25 Jun 1959, WurdacTc 4 Adderley 43180. 



This predominantly British Guiana species is also known from the State of 

 Para in Brazil, from the southeastern corner of Colombia, and from the upper 

 Rio Negro in Brazil; the present collections are the first to be reported from the 

 adjacent region in Venezuela. 



Diplotropis racemosa I Eoehne Amshoff. 



VENEZUELA: Amazonas: occasional along Rio Casiquiare just above Piedra Guanare, 

 alt. 110 m; bushy tree 10 m; fls white, pink -flushed ; 25 Jun 1959, Wurdack 4- Adderley 43181. 



The range of the typical form of this species, with this first report from 

 Venezuela, extends from north-central Matto Grosso (the type locality), to the 

 mouth of the Amazon KiYer, to the upper Rio Negro drainage and the south- 

 western extremity of Venezuela. 



Lonchocarpus paniculatus Ducke. 



YEXEZUELA: Amazonas: forest edge at San Fernando de Atabapo, alt. 125 m; tree 

 30 m tall, 1 m DBH ; fls purple; 6 Jun 1959, Wurdack 4 Adderley 42843. 



COLOMBIA: along left bank of Rio Orinoco just below mouth of Rio Atabapo, alt. 125 

 m; tree 8 m; fruit green; 6 Aug 1959, Wurdack 4~ Adderley 4377 j. 



These collections represent the first report of this species in Venezuela ; in 

 both, the leaflets and fruits are a little larger than typical, but in most respects 

 this material is Yery near L. paniculatus. The inflorescence and infrutescence 

 are unnaturally congested as a result of disease on the living plant. 

 * 



Machaerium floribundum Bentli. 



YEXEZUELA: Amazonas: along river between Cerro Y'apacana and Santa Barbara, 

 alt. 125 m; woody vine climbing 8 mm in trees, inner bark with abundant dark red exudate; 

 corolla Avhite, the banner apically with red-purple blotch; 17 Jan 1958, Mac/uire, Wurdack 4' 

 Keith 42652. 



This is the first report of this wide-rang'ing species in Venezuela; it has also 

 been collected in eastern Colombia, British Guiana, and northern Brazil. 



Pterocarpus grandis Cowan, sp.« now Fig'. 56. 



Arbor parva, strigulosa sed mox g-labrescens, stipulis caducis, lanceolatis, 

 6 mm longis, 3 mm latis. Folia 5-6-foliolata, petiolo 7 cm longo, sparse striguloso, 

 tereti, rhachi plus minusYe tereti, sparse strigulosa, 8.5-10 cm longa, foliolis 

 attends, petiolulis 6-9 mm longis, sparse puberulis supra profunde canaliculatis, 

 laminis 14—20 cm longis, 8-10.5 cm latis. foliorum ad basim illis lato-OYatis, 



