312 FLORA NIGRITIANA. 
Voandzeia subterranea, Dup. Thou., and Cajanus Indicus, Spr., 
to which last must probably be referred the Cytisus Guineensis, 
Schum. et Thonn.— A Senegambian plant, supposed to be a 
Psophocarpus, but of which only the fruit and foliage are 
known, has been published by Desvaux under the name of 
P. palustris, and by Guillemin and Perrottet under that of 
P. palmettorum. It appears, however, to be at least as nearly 
allied to the Brazilian Diesingia as to the Asiatic Psopho-. 
carpus. i 
1. Cyanospermum calycinum, Hook. fil.—Rhynchosia calyeina, 
Guill. et Perr. Fl. Seneg. 1. p. 214.— Sierra Leone, Don, 
Vogel. 
Although the caruncle of the seed is extremely small in this 
species, yet the general habit, the calyx and corolla are those 
of Cyanospermum rather than Rhynchosia, and it has also the . 
peculiar blue seed of the former genus. The constricted pod 
occurs also in Rhynchosia phaseoloides, which is in every other 
respect a true Rhynchosia. 
l. Rhynchosia Memnonia, DC. Prod. 2. p. 386.—St. Thomas, 
Don ; Senegal, Nubia, and Upper Egypt. 
2. Rhynchosia debilis, Hook. fil. ; prostrata v. volubilis, pubes- 
cens, stipulis parvis ovato-lanceolatis acuminatis subulatisve, 
foliolis membranaceis rhombeo-orbicularibus abrupte acumi- 
natis lateralibus inzequilateris, racemis axillaribus densifloris 
petiolo multo brevioribus, bracteolis lineari-lanceolatis pedi- 
cello longioribus, calycis laciniis lanceolato-subulatis infima 
elongata, legumine patentim piloso rufo.— Dolichos debilis, 
Don, MSS.—Glycine macrophylla, Schum. et Thonn. Beskr. 
p. 348 ?—St. Thomas, Don. 
Caulis gracilis 2-3-pedalis. Stipule decidue, 2 lin. long®, 
striate. Petioli 2-pollicares, graciles, canaliculati. Folio- 
lum terminale 23 poll. longum, lateralia minora, omnia utrin- 
que puberula et subtus glandulis miminis creberrime punc- 
tata. Racemi l-li-pollicares, densiflori. Bracteole stipulis 
angustiores, sepius rufescentes et rigiduli ; pedicelli suberecti, 
1-2 lin. longi. Calyz 3 lin. longus, anguste campanulatus, 
pubescens et glandulosus, laciniis subulatis tubo longioribus, 
