234 BOTANICAL GAZETTE 
large ascending nearly sessile calyx-lobes; cavity broad and deep; 
flesh thick, yellow, very sweet; seeds usually 5, 6-8" long, pet : 
the back, the lateral faces nearly plane. 
The species above proposed is related to C. moéias, from waka 
separated by the different outline of the leaf, with its very sharp serratures,_ 
more simple inflorescence, somewhat later period of flowering, and lar 
erect calyx-lobes. The fruit matures early in October and falls - 
W. W. AsHE, Raleigh, N. C. tes 
BLACK ROT OF ORANGES. 
A FuNGOUS disease of navel oranges has attracted attention in| 
- -orange- growing districts of California for the past eight or ten oo 
and was named black rot by the writer on account of the hom 
diseased tissues. The losses due to this disease will run 3 
_ per cent. of the navel crop, and as the cultivation of the navel ¥ 
in the state is extensive the total losses are proportionatel} hea’ 
ae are attacked through the navel, the — sei 
“among the pulp sacks, which are wholly des 
Ee omkene but this. destruction of tissue 
‘The fungus inducing this disease is a ne 
conidia are produced upon the surface of t 
e cycle has been studied by means of 1 
descriptions and illustrations are | 
facts SEEN: to a tre 
