30 PITTONIA. 
Gulf of Mexico, all cause of doubt as to their specific identity 
is banished. 
Seven years subsequently to the appearing of Miller’s 
eighth edition Forskaal issued his Flora Ægypta-Arabica, 
and there is catalogued in this book an Arabian “Cassia pro- 
cumbens? caule erecto." Vahl afterwards, presumably after 
having critically examined the specimens, published this 
as new, under the following specific name: 
C. NIGRICANS. Cassia nigricans, Vahl, Symb. i. 30 (1790); 
Colladon, l. c. 113. Cassia procumbens, Forsk. Fl. Ægyp.- 
Arab. CXI (1775), not of Linn. Colladon seems to have felt 
some doubt as to whether this species should be reckoned a 
Chameerisia or a Chamesenna; but Forskaal’s having taken 
it for specifically identical with so typical a Chamszecrista as 
C. procumbens would of itself almost warrant the conclusion 
that it must be of this group; and Vahl’s description leaves 
no room for doubt. I do not ascertain that the species has ~ 
ever been figured. 
Among the new Cassias published by Lamarck in 1783, 
and by Thunberg in 1784,the following are certainly of the 
present genus: 
C. ANGUSTISSIMA. Cassia angustissima, Lam. Encycl. i. 650. 
An East Indian kind, known well enough long before Lin- 
nzeus, and neatly figured by Plukenet, Almagestum, t. 5, f. 2. 
and also by Rumphius. 
C..BREVIFOLIA. Cassia brevifolia, Lam. 1. c. 651; Colla- 
don, Hist. Cass. 123, t. 19. Native of Madagascar. 
C. capensis, E. Mey., in Linnza, vii. 172. Cassia Capensis, 
Thunb., Prod. 79. Indigenous to the Cape of Good meret ; 
figured in Colladon, t. 19. 
