594. GEOLOGICAL SURVEY OF NEW JERSEY. 
HYDROPHORA, Tode. 
H. stercorea, Tode. 
On horse dung. 
SPORODINIA, Link. 
S. dichotoma, Cda. 
Decaying Boleti. 
SYZIGITES, Ehr. 
S. megalocarpus, Ehr. 
Decaying Boleti. 
PERONOSPOREZA. 
CYSTOPUS, De By. 
C. candidus (Pers.), Lev. 
Leaves of cruciferous plants. 
C. cubicus (Pers.), De By. 
Leaves of sweet potatoes. 
C. Portulace, De By. 
Leaves of Portulaca oleracea. 
PHRONOSPORA, Cda. 
P. infestans (Mont.), De By. 
On leaves of Solanum tuberosum. 
P. gangliformis (Berk.), Tul. 
Leaves of Lactuca Canadensis. 
P. parasitica (Pers.), De By. 
Leaves of Lepidium Virginicum. 
PROTOMYCETACEZ. 
PROTOMYCHS, Unger. 
P. Martindalei, Pk. 
On Cuseuta Gronovit. Camden :—-Martindale. Hudson: 
Weehawken—Gerard. 
