38 CONTRIBUTIONS 
spinescentes, curvalæ, 6-8 mill. longæ, petioli communes 10-13 cent. longi, vix pube- 
rub, foliola 30-35 juga, parva, anguste oblonga, brevissime petiolulata, utrinque obtusa, 
apice mucronulata, marginala, glabra, nitida, 10 mill. longa, 3 mill. lata, venis subtus 
areuato-anastomosantibus:; racemi ad apicem ramorum paniculati, videntur laxiflori ; 
calyeis dentes breves; lequmen 6-7 cent. longum, stipitatum, tomentoso-sericeum, ad 
semen 10-12 mill. latum, incrassatum, hinc intrusum, ala fere recta, 14-15 mill. lata, 
stipite 8 mill. longo. 
Villa Conception, San Salvador, in argillosis, n. 1392, 1392 «. 
PLATYPODIUM Vos. 
P. £LeGans, Vog. Linn., XIE, p. 422; Benth. FL. bras., I. c., p. 262, t. 88. 
San Salvador in sylvis, Mai., n. 1391. 
Ar, geogr. Bras. centralis, Bolivia. 
PTEROCARPUS Linn 
? Pr. Ronru, Vahl. Symb., IL, p. 79; Benth. FI. bras. I. c., p. 297, tab. 92. 
Specimen notis plerisque ad hanc speciem referendum; legumine unico anguste alato. 
Arbor 4-5 metralis; floribus luteis, fructu edali, in ripis Rio Paragnay prope 
Assomption, n. 1497. 
Ar. geogr. Brasilia imprimis borealis, Guyana. 
? PreRocARPUS, species ignota, fructu absente incertæ sedis; ab omnibus speciebus 
descriptis Pterocarpi, foliolis numerosioribus et minoribus distincta. 
Arbor 6-8 metralis, floribus luteis; Cerro-Lambaré prope Assomption, in campis 
argillosis, salsis, Oct., n. 1496. 
BERGERONIA gen. nov. 
Calyx tubuloso-campanulatus, apice breviter quinque-dentatus, dentibus superiori- 
