101 
tiols geniculated at their insertion, and with a red 
elliptic gland, flowers yellow, the upper division 
of the calyx broader, shorter, and concave ; five 
petals nearly equal, the upper a little larger, ten 
unequal stamina, two longer and curved along 
with the ovary, pods long with many seeds, which 
the countrymen use instead of coffee. This plant 
has only become common of late. 
335. Cercis canadensis L. Rob. p. 499. It rises 20 
to 25 feet; the flowers are small and rose co¬ 
loured. 
XXIV. N. G. Diplonyx Raf. Calyx urceolatus bila- 
biatus, labium sup. fissum, labium inf. tridentatum. 
Corolla papilionacea, vexillum reflexum, ungui- 
culus glandulosus, alee biunguiculatae emarginata 
calcarata, carina biunguiculata. Stamina 10 (di~ 
adelpha ?) Leguminibus teretibus polyspermis.— 
Obs. This new genus, whose name means double 
nails, is strikingly different from all papilionaceous 
plants ; it has merely some slight analogies of 
characters and habit with Apios and Indigofera, 
but none with Cytisus. Raf. 
336. Diplonix elegans Ra£ Fruticosum volubile, foliis 
impari pinnatis, foliolisx*ppositis hastatis, margine 
revolutis, subtus tomentosis, racemis teretibus, 
elongatis, calycibus villosis, leguminibus arcuar 
tis. Raf—Cytise vulg. liane blanche Rob. p. 500. 
An elegant vine, rising 30 to 40 feet over trees, 
and with numerous suspended branches ; found 
in the islands between the Mississippi and Ataka- 
pas. The leaves have 13 folioles, the flowers 
