No. 104.] . 49 



Sporodinia grandis, Lk. 

 Decaying Agaricus aboriivus. Osceola. Aug. 



lUosporium humigenum, FI-. cC Sacc. 



Tnfts subglobose or pulvinate, ratlier compact, often botryoidal by 

 confluence, sordid red, grayish or subcinereons; spores globose, at first 

 three or more aggregated, then free, colorless, .0002 to .00028 in. 

 broad; basidia none or obsolete. 



Damp ground, horse dung, etc. Lebanon Springs. Clinton. Co- 

 pake. Aug. and Sept. 



Monilia Peckiana, Sacc. 



Petioles of dwarf blueberry, Vaccijiium Pennsylvanicum. Cobble 

 Hill, near Elizabeth town. May. 



This is a very destructive fungus. The leaves, of which the petioles 

 are attacked, soon wither, turn brown and die. The destruction of 

 the leaf tissues progresses from the base toward the apex as if destroyed 

 by the advancing mycelium. But the strings of spores, so far as I 

 have observed, are produced on the petioles only. The spores vary 

 very much in size, ranging from .0005 to .0012 in. long, and from 

 .0005 to .0009 broad. Tliey are globose or subelliptical and usually 

 have a slight prominence or apiculus at one or both ends. 



Y uriety angicstior Sacc. Young fruit of choke cherry, Primus Vd'- 

 giniana. Schoharie. July. This differs from the typical form not 

 only in its host plant and place of development, but also in the size of 

 the spores. These are subglobose and .0004 to .0005 in. long. These 

 differences seem to me to indicate a difference of species, but Prof. 

 Saccardo regards this fungus as a mere variety of the former. It is 

 very destructive to the young cherries. In some instances nearly all 

 the cherries in a raceme were affected by it. Those attacked were 

 smaller than the healthy ones. They were of a brownish or grayish- 

 brown hue, and more or less frosted by the fungus. Should this para- 

 site ever escape from its native host plant and attack our cultivated 

 cherries, it might become a very annoying and destructive pest. 



Ramularia Geranii, Fckl. 

 Living or languishing leaves of wild geranium, Geranhmi macula- 

 turn. Schoharie. July. 



Saprolegnia ferax, Kutz. 

 On fishes in an aquarium. Albany. Also in an artificial fishpond. 

 Sandlake. It is sometimes very destructive to fish. 



Geoglossum viscosum, Pers. 

 Ground under brakes, Pleris aqtiilina. Adirondack mountains. 

 Aug. This may be distinguished by its triseptate spores from G. 

 Feckianum, -which it much resembles. 



Leotia mercida, Pers, 

 Swampy places. Delmar and Karner. Sept. 

 [Assem. Doc. No. 104. J 7 



