394 F. Pisani on the Corundophilite of Shepard. 
with the spores, did not yield this specific fungus. When the spores 
were heated in tubes to 284° F. they lost their “SP and then ceased 
to germinate. | 
t seems that in this case, as in that of the cer@M™S, the’ Vitality of the 
seeds or spores is retained under certain circumstances up to nearly or 
chemical substances in 
Columbia, Oregon and California. Dried specimens that have been two 
years or more in an herbarium will still grow, and are often troublesome 
from sprouting while between the papers. One specimen, collected by 
Dr. Lyall, of the British Navy, was “immersed in boiling water” to stop 
April 6th, 1866. 
— 
Art. XLIX.—On the Corundophilite of Shepard; by F. P1saNl. 
hen quite thin, and flexible without Sclastidsky: Cleavage 35 
very easy parallel to the base. In a polarizing microscope he 
plates show two optical axes inclined as in clinochlore, with the 
double refraction positive, 
