72 SCHOMBURGK’S GUIANA PLANTS. 
longioribus, legumine glabro.—Pedrero. Schomburgk, m. 
896. Brasilia. Herb. Mus. Par. Borba on the Rio Negro. 
Herb. Mus. Petrop.— Arbor 30—40 pedalis. Ramuli angulati 
verrucosi. Stipulæ subpersistentes, crassz, lineares, obtuse, in- 
curve, 2—3lin. longa. Foliola 3—5 pollicaria breviter petiolu- - 
lata, exstipellata. ‘Pattionla terminalis, foliis brevior. Rachis 
et calyces tomento brevissimo in sicco ferruginei. Bractew 
ad basin ramorum breves ovate acute, ad basin pedicellorum 
uti bracteolee minute dentiformes. Flores albi, odorati, vix 
5lin.longi. Vexillum glabrum obovatum. Petala inferi- 
ora oblonga. Stamina suprema breviora, nee omnia alter- 
natim breviora et longiora ut in D. Martini. Legumen 
(nondum maturum) ovali-oblongum, subincurvum, platio: 
compressum glaberrimum, juxta suturam vexillarum utring 
leviter nervatum. j 
SUBORDER Crest eimai. 
The g genera of this Suborder have been usually enumera 
with little or no method in their arrangement; many of shens 
being even now but very imperfectly known; but they ha! 
become so numerous that it is necessary to make some attempt 
at grouping them, and I have therefore ventured to prop 
the following tribes, in which I have placed for the pr 
such of the genera as I have means of examining, though the 
is little doubt that a better acquaintance with some of the 
may hereafter considerably modify the mean ie? and 
characters of one or two of the tribes. 
TRIBE 1. Leptolobiee, Calyx plerumque eaméáni latus 
5-fidus. Petala quinque, patum inequalia. Stamina 
fertilia, parum inzequalia, declinata vel divergentia. 
stipes a calyce liber. Folia simpliciter abrupte vel subim- 
paripinnata.—Genera : Leptolobium, Vog.; Sclerolobium, Vor: 
Acosmium, Schott; Zuccagnia, Cav. ; saei, 2 
POM Presl; Parkinsonia, L. s 
Trige Il. Eucesalpiniee. Calyx 5-fidus v. mipi j- p? 
titus. Petala quinque, parum inzequalia. Stamina 10 ferti 
parum declinata. Ovarii stipes a sae n liber. Folia bipi in 
