102 Thirty-eighth Report on the State Museum. 



Sphaerotheca pannosa, Lev. 

 Living leaves of wild rose, Rosa parvifiora Ehrh. West Albany. Aug. 



Microsphaeria Nemopanthis, n. sp. 



Mycelium arachnoid, thin, amphigenous ; appendages few, five to 

 twelve, equal to or a little longer than the diameter of the perithecia, 

 terminally four or five times dichotomous, colored, sometimes forked 

 near the base, the ultimate ramuli recurved ; asci about four ; spores six 

 to eight. 



Living leaves of Nemopanthes Canadensis. Karner. Sept. 



The species is apparently allied to M. Berber idis, from which it is 

 separated because of its fewer asci and colored appendages. 



Capnodium Citri, B. & D. 



On oranges, Albany. Not ascigerous. Introduced with the fruit 

 which it inhabits. 



Asterina nuda, n. sp. 



Plate 2, figs. 11-15. 



Perithecia numerous, closely gregarious or crowded, superficial and 

 naked or with a few short obscure radiating filaments at the base, globose 

 or subdepressed, .003 to .004 in. broad, black ; asci oblong or subcylin- 

 drical, .0016 in. long, .0005 broad; spores crowded or biseriate, oblong, 

 uniseptate, colorless, .0004 to .0005 in. long, .0002 to .00025 broad. 



Dead leaves of balsam fir, Abies balsamea. Adirondack mountains. 

 June. 



Externally this species resembles Sacidium Pini, but its fruit is very 

 different. The perithecia are generally arranged in three linear patches, 

 one along the middle of the upper surface of the leaf and two on the 

 lower surface, one on each side of the midvein. They are less numerous 

 on the upper surface than on the lower, and are sometimes entirely 

 absent there. The radiating mycelioid filaments are not always present, 

 and but for the superficial perithecia the species might easily be referred 

 to the genus Sphaerella. The bilocular colorless spores indicate the 

 section Asterella. 



Valsa pauperata, C. & F. 



Dead bark of maple, Acer rubrum. Karner. June. 



In our specimens it is not uncommon to find a half dozen perithecia 

 in one pustule, although in the typical form there are but two or three. 

 A whitish or pale-grayish pulverulent disk often exists, which is at 

 length obliterated by the black ostiola. The spores are .00064 to .0008 

 in. long, .0002 to .00025 broad, which is somewhat larger than the di- 

 mensions given in the description of V. pauperata, nevertheless we 

 think our specimens are only a form or perhaps a variety of that species. 

 The pustules are often arranged in long flexuous lines as in the type. 



Valsa cornina, n. sp. 



Pustules small, scattered, at first covered by the epidermis, which is 

 at length longitudinally ruptured; perithecia two to five in a pustule, 



