A TRIBE OF LEGUMINOSX. 17 
the P. erinaceus the shape is nearly the same, but the centre is 
covered with straight prickles. In the P. Draco the pod is still 
more oblique, and the very thick and согКу seed-bearing part is 
surrounded by a much narrower thin edge, which is sometimes 
reduced toa mere keel. In P. Hohrii and some others the centre 
is but slightly thickened, the greater part of the large orbicular 
pod being thin and almost membranous. In the African P. lucene 
and sericeus and the American P. ancylocalyz the consistence of 
the whole pod is more uniform, the centre is but slightly thickened, 
and the edges are not membranous, the pod is also straight and 
not so broad, varying in the same species from three quarters to 
not half as broad as long. All these differences, though slight in 
the plan of the pod, are so striking in outward appearance, that 
they have long since been made use of to establish sections, which 
I formerly proposed to raise to the rank of genera. But a careful 
comparison of the more ample materials we now possess has con- 
vinced me that most of such differences are specific only, and I 
‘have therefore now reunited Echinodiscus, Moutouchia, Amphy- 
meniwn, and Ancylocalyx with Pterocarpus. De Candolle's section 
Ateleia, of which he had not seen the flowers, comprises one or 
two species of an otherwise unpublished Cesalpineous genus, 
with a Cape species of Viborgia. My Phellocarpus was founded 
on a deformed corky state of the fruits of a Pterocarpus, probably 
P. ancylocalyz, 
P«CILANTHE. 
Under this name I have published three South American species, 
evidently congeners of each other, and allied to Pterocarpus, but 
differing somewhat in habit, in the more regular and deeply cleft 
calyx, and in the short keel. The perfect fruit is not known for 
certain, but shortly after flowering the growing ovary is already 
very different from that of Pterocarpus, being long and narrow, 
With several ovules; and, if my conjecture is right, that Velloso's 
figure of his Pterocarpus falcatus (Fl. Flum. vii. t. 93) represents 
my Pecilanthe grandiflora, the pod would be in some measure 1n- 
termediate between those of Pterocarpus and Lonchocarpus. o. 
Among Fendler’s Venezuelan plants is a remarkable one distri- 
buted under the No. 2223, which is also evidently allied to Ptero- 
carpus, but the calyx, pointed and closed in the bud, appears 
always to open by a longitudinal slit, becoming, as it 18 termed, 
‘Pathaceous. In the specimen, however, which I have seen, the 
flowers are only commencing to expand, and there is nothing to 
LINN. PROC.— BOTANY, VOL. IV. SUPPLEMENT. © 
