Report of the Botanist, 49 



GrLONIUM HYALOSPORUM Qef. %Yl Ml. 



Decaying wood. Willowemoc. W. R. Gerard. 



Hypoderma nervisequum DC. 



Leaves of balsam. Mt. Marcy and Summit. 



The specimens are without fruit, but so closely resemble European speci- 

 mens that I have no hesitation in referring them to this species. 



Rhytisma maximum Fr. 



Living stems of willows, Salix sericea. Stamford, Delaware county. 

 Sept. 



This is also without fruit, but so characteristic in other respects, that there 

 can scarcely be a doubt of its identity. It kills the stems and branches it 

 attacks. 



Hypocrea viridis Tode. 



Maple chips. Griffins. Sept. 



This is so unlike our ordinary forms of H. gelatinosa, that it seems best to 

 keep them distinct, though some botanists unite them. 



Hypoxylon xanthocreas B. & C. 



Prostrate dead alders. Center. Sept. 



Our specimens agree with those received from Dr. Curtis under this name, 

 but they do not agree with the description of the species as published in 

 G-revillea. In our specimens the young plant is covered with a compact yel- 

 low conidiiferous stratum bearing elliptical conidia .00016 -.0002 long. As 

 the stroma increases in size, it becomes naked above, and of a purple-brown 

 or chestnut color, which contrasts beautifully with the yellow margin. When 

 old it becomes darker, but I have not seen it " black " as described. The 

 surface is generally irregular or uneven. The stroma is whitish or pallid 

 within, but near the surface it is yellow. The spores vary from .0004'- 

 .0006' in length. I find none, neither in our specimens, nor in those of Dr. 

 Curtis, as small as stated in the description. But for the examples of Dr. 

 Curtis, I should have regarded our plant as a different species, so widely does 

 it differ from the description. 



DlATRYPE ASTEROSTOMA B. & C. 



Birch bark. Oneida. Warne. 

 Dothidea Epilobii Fr. 



Dead stems of willow herb, EpiloUum angustifolium. Adirondack 

 Mountains. Aug. 



Valsa translucens De Not. 



Dead willow branches. West Albany. Apr. 



Valsa Xanthoxyli Pk. 



Pustules slightly prominent, erumpent, with a yellowish or tawny 

 furfuraceous disk which is dotted by the ostiola ; perithecia two to fifteen, 

 rarely single, fragile, pale, surrounded by a tawny tomentum, which is some- 

 times agglutinated into a kind of spurious receptacle ; ostiola distinct, short, 

 obtuse, black, at first suffused with a yellowish-green powder ; asci subcylin- 

 drical ; spores crowded or biseriate, oblong, obtuse, straight or slightly curved, 

 .0008 -.001' long, .0003 broad, three to five-septate with an occasional longi- 

 tudinal septum, at first colorless, then yellowish. 

 4 



