62 



PILIDIUM GRAMINICOLA, N. sp. 



Perithecia minute, .ooS to .014 inch broad, depressed, erum 

 pent, orbicular or hysterifomi, membranous, opening widely, black. 

 the disk whitish, the mouth laciniate-dentate ; spores oblong or 

 subfusiform, colorless, triseptate, .0012 to .0016 inch long, .0004 

 to .00045 broad; sporophores short, colorless. 



Dead leaves of blue joint, Calamagrostis Canadensis. Mount 

 Marcy. June. 



GL(EOSPORIUM LINDEMUTHIANUM, Sacc. 



Living bean pods, especially of the butter or wax bean. Menands. 

 August. 



An injurious fungus that produces brown spots on the pods, thus 

 spoiling their appearance and diminishing their value. 



GLCEOSPORIUM SEPTORIOIDES, Sacc. 



Living leaves of white oak, Ouerciis alba. Gansevoort. Sep- 

 tember. 



GLCEOSPORIUM ROBERGEI, Desm. 



Living leaves of water beech, Carpiniis Americana. Gansevoort. 

 September. 



MELANCONIUM BETULINUM, Schm. 



Dead bark of white birch, Betnla popnlijolia. Menands. Sep- 

 tember. 



Distinguished from M. hicolor by its longer spores. 



MELANCONIUM DIMORPHUM, N. sp. 



Pustules small, subcutaneous, slightly prominent, subconical, 

 black, containing a small w^hite stroma; spores of two forms, one 

 narrow, cylindrical, straight or curved, .0003 to .0004 inch long, 

 .00008 broad, the other oblong, elliptical or subfusiform, colored, 

 .0004 to .0005 inch long, .0002 to .00025 broad, oozing out in a 

 black mass or in tendrils. • 



Dead branches of alder, Alniis viridis. Adirondack mountains. 

 June. 



Remarkable for the two kinds of spores. In some pustules the 

 broader spores are more numerous, in others the narrower ones, 

 but both kinds were found in all the pustules examined. Can the 

 narrow ones be broken or effete sporophores? 



