296 Caricography. 
Such are the general views which I have deduced concera- 
ing the formation of phosphuretted hydrogen; which I 
lieve the most minute examination will prove ‘to be founded 
L. ©. Bro 
. XIV. —Appendix to Se oa oe eee D6 B P- 325. 
By Prot Cc. Dew 
ered to the Lyceum of Nat. Hist. of the Berk. Med. Inst.) 
1. “©. Fi te cae 
Vol. 
Vol. XH. Tib, P. se 50. 
THROUGH the politeness of Mr. Nurratt I have received 
a specimen of this species, since the pect Ue was printed 
= Yok XI. and from which the accompanying figure is ta- 
"Spike simple, few-fruited, staminate flowers at the summit 5 
staminate scale oblong, obtuse, white and membranous on 
ges, tawny on the keel; fruit ovate, subglobose, fally 
emacs" nar cb cus Gearon: ewhat retuse in the 
———— the fruit,—lower ones distinctly ovate and 
somew. 
2. C. Washingtoniana, goes 
Vol. X. p. 272. Tab. D. fig. 14. 
C. nigra, Schw. and owe 
fished in the dese “pare and seme of this species were pub- 
shed in ‘ had opportunity to compare it 
the: , All. dread Europe, and find them, as I had 
stated, exceeding different from each other. ‘The C. nigra 
s closely re lated to C. atrat a and C. bicolor, and the three 
nists to be only varieties of 
he same species, vin. Cve same a gH ican and some 
others, | aes their dist he di from C. 
= 
