344 MEMOIRS OF THE NEW YORK BOTANICAL GARDEN [Vol. 9, No. 3 



I 



jugatae; rachibus 3*6.5 cm longis, pilosis et pilosulis. Foliola 12-23 mm longa, 

 5-8 mm lata, oblonga, ad basim inaequilateralia, obtusa, ad apicem rotunda et 

 emarginata; supra in costam sparse uncinato-pilosula, infra glabra sed cerifera; 

 costa plana supra, infra saliens. Inflorescentiae sessiles, axillares, 2-4.5 cm 

 longae, axe puberulo; bracteae ovatae, acutae, 2 mm longae, 1.5 mm latae, puberulae 

 extus, intus glabrae, deciduae. Pedicelli 1-1.5 mm longi, puberuli; bracteolae 

 5.5-6 mm longae, 3.5 mm latae, ovales, mucronatae, puberulae extus, intus 

 pilosulae. Hypanthium cupulare, ca. 1 mm longum, glabrum; sepala 5, glabra, 

 dimorpha, 2 dorsualibus triangularibus, ca. 1.5 mm longis et 1 mm latis, acuminatis, 

 3 ceteris lanceolatis, ca. 4 mm longis et 1.5 mm latis. Petalorum lamina 4-4.5 

 mm longa, 4.5-5 mm lata, oblata, glabra, unguiculo 5 mm longo, glabro intus, 

 extus pilosulo ad basim, leviter auriculato. Filamenta ca. 18.5 mm longa, dimidio 

 basali villoso. Stigma capitellatum; stylus pilosus ad basim, ca. 16 mm longus; 

 ovarium marginaliter pilosum lateraliter glabrum, gynophoro 2-2.5 mm longo, 

 piloso. Fructus ignotus. 



TYPE: Frequent at base of Cano Coro-Coro, near Base Camp, elev. 150 m, 

 Cerro Coro-Coro, Rio Manapiari, Terr. Amazonas, Venezuela, March 3, 1953, 

 Bassett Maguire & Celia K. Maguire 35510 (NY). 



The relationship of this species is not particularly easy to determine but it is 

 tentatively assigned a position approximate to M. flexuosum which it resembles 

 in key characters more than in superficial aspect. It differs from M. flexuosum 

 by its fewer leaflet pairs, smaller leaflets, and in the vestiture of the ovary. It is 

 also related, to a lesser extent, to M. microcalyx and M. discolor. It differs from 

 the latter by the smaller, differently shaped leaflets and generally shorter pedi- 

 cels of M. anomalum but it is similar to M. discolor in number of pairs of leaflets. 

 From M. microcalyx the principal character differences are the distribution of 

 pubescence on the ovary, leaflet size and shape, vestiture of the branchlets, and 

 the number of pairs of leaflets. 



The specific epithet is intended to convey the unusual nature of this species 

 in its relationship to so many species without being very closely allied to any 

 one of them. 



Macrolobium longipes Cowan, sp. nov. 



Arbuscula 0.6-4 m alta, ramulis glabris. Stipulae triangulares, 2 mm longae, 

 0.6 mm latae, caducae, glabrae. Petioli 4-15 mm longi leviter marginati, glabri. 

 Folia glabra, foliorum laminae ( l-)2(-3)* jugata, rachibus (0-)10-35 mm longis. 

 Foliola 40-85 mm longa, 12-31 mm lata, oblonga, oblongo-ovata, oblongo-elliptica 

 vel elliptica, ad basim subaequilateralia, acuta, ad apicem rotunda vel truncata, 

 saepe leviter emarginata, latere inferiore punctato; costa plana supra, infra 

 saliens, venulis subprominulis. Inflorescentiae 8-12.5 cm longae, terminales, 

 glabrae, pedunculo 2-4 mm longo; bracteis caducis, triangularibus, ca. 1 mm 

 longis et latis, glabris; pedicelli (9-)12(-l6) mm longi, filiformes, glabri; bracteolae 

 rubrae, 12-17 mm longae, 5-9 mm latae, ellipticae, acutae. Hypanthium cupulare, 

 2.5-3 mm longum, glabrum, sepalis 5, glabris, 5.5-8 mm longis, lanceolatis, ad 

 apicem minute ciliolatis, duobus adaxillaribus ca. omnino coalescentibus. Petalum 

 rubrum, lamino 5-6 mm diametro, rotundo, glabro, unguiculus 8-11 mm longus. 

 Filamenta 20-25 mm longa, glabra. Stigma capitellatum; stylus ca. 22 mm longus, 

 glaber; ovarium ellipticum, glabrum, gynophoro 3.5-4 mm longo, glabro. Fructus 

 (immaturus) 8-9 cm longus, 3-3.5 cm latus, oblongus, glaber. . 



TYPE: Fls. red; fruit red at first, green later. Frequent in savanna on right 

 bank of Rio Pacimoni 50 km above mouth, Terr. Amazonas, Venezuela, 100-140 m 

 elev., Feb. 7, 1954, Bassett Maguire, John J. Wurdack & George S. Bunting 37590 

 (NY). Paratypes: VENEZUELA: Amazonas, Rio Pacimoni: savanna on right bank, 



