389 
XXIY. On Pissicalyx and Prioria, two recently published Genera of Leguininosze. 
By George Bentham, JEJsq., Fres.L.S. 
Read June 20th, 1861. 
1. Pissicaltx Pendeeri, Benth. 
W HEN I gave the characters of this remarkable species, forming a very distinct genus of 
Dalbergiege, in a recent Part of the Journal of the Society's Proceedings (vol. v. p. 78), I 
stated that the loose fruits distributed with the specimens were those of a Giiaiacum. In 
this I was misled by the fruits of the Giiaiacum arboreum, distributed in the same set, 
having been accidentally exchanged with them in my parcel. I have now ascertained 
that the loose fruits generally sent with the Fissicalyx really belong to it, and confirm 
the very distinct character of the genus. Not only are the calyx and anthers exceptional 
among Dalbergiese, but the broad wings do not, as is usually tho case in that tribe, and 
in other 1- or 
2 -winged legumes, 
arise from the sutures, but from the centre of the 
valves themselves, like the secondary wings in the 4-winged Loth and CUtoria, or in 
Psop7iocarpus, Tetrapleura, Gagnebina, and other 4-winged Leguminosae. Here, however, 
the sutures are not at all dilated, and the legume has only the secondary wings, the 
cavity of the pod remains very narrow for its length, and the single seed in the one I 
opened had linear cotyledons, of which one was longer than the other and hooked over 
it at the extremity. The embryo is perfectly straight, as in Csesalpiniere ; but that is the 
case in several Dalbergieae. 
The following is the technical character of the genus, with the description, of the 
species, as completed by that of the fruit. 
Pissicaeyx, Benth. 
Char. Gen.— Calycis tubus turbinates ; limbus acuminatus, integer v. apice brevissime bidentatus, per 
anthesin hinc fissus, spathaceus. PetaJa ad apicem tubi cum staminibus inserta, papilionacea. 
Vexillum ovatum. Alee eo vix breviores, oblique oblongae. Carina petala subsimilia, paullo minora, 
libera. Stamina 10, monadelpha, vagina supra fissa. Antherce versatiles, apice biporosae. Ovarium 
breviter stipitatum, biovulatum. Stylus filiformis, apice minute stigmatosus. Legumen cum alis 
planum, ovali-ellipticum, ipsum tamen angustum, suturis parum prominulis, valvulis medio longi- 
tudinaliter late alatis. Semen unicum, prope apicem affixum, oblongo-lineare. Albumen 0. Testa 
tenuis, hilo parvo. Embryo rectus, radicula brevi supera, cotyledonibus lineanbus. 
Species unica, P. Pendlert, Benth. Arbor. Polia imparipinnata. Poliola (11) opposita, 
exstipellata, petiolulata, inferiora ovata, superiora oblonga, acuminata, 3-4-pollicaria, 
basi rotundata v. subcordata, glabra, membranacea. Panicula terminalis, molliter 
pubescens. Bractere stipulares, ad basin ramulorum parvae, sub floribus minuta?. 
Plores conferti. Pedicelli ad singulas bracteas solitarii v. gemini, vix lineam longi. 
Bracteolse parvae, acuta?, persistentes. Calyx semipollicaris, pubescens, subfoliaceus, 
3g2 
