1893.] NATURAL SCIENCES OF PHILADELPHIA. 159 



covering the entire upper surface of the leaf. Sporules poorly devel- 

 oped, apparently oblong-elliptical, 5 x 2,«, borne on stout sporophores 

 arising from the inner surface of the perithecia, with oil globules 

 intermixed. 



Actinonema psoralese E. <fc E. 



On living leaves of Psoralea digitata, Rockport, Kansas. June, 

 1892. (E. Bartholomew, No. 627.) 



Spots amphigenous, definite, suborbicular, rusty brown 2-4 mm. 

 diam. Perithecia discoid, black, rough, 75-90//. diam., mostly con- 

 fluent, forming a black crust about 1 mm. diam., in the middle of 

 the spot, mostly amphigenous. Sporules oblong, hyaline, 2-nucleate, 

 12-15 x33-4,«. 



Asterinula dearnessii E. & E. 



On leaves of Gerardia quercifolia, London, Canada. August, 

 1892. (Dearness, No. 1,966.) 



Perithecia subdiscoid, brownish-black, h-i mm. diam., amphige- 

 nous, scattered, entirely superficial. Sporules oblong, uniseptate, 

 olivaceous, abundant, 9-12 x 3//. 



Vermicularia ochrochaeta E. & E. 



On the loAver surface a decaying maple leaf, near Ottawa, Canada. 

 Sept., 1891. (J. Macoun.) 



Perithecia scattered, superficial, black, membranaceous, sub- 

 globose, astomous, of radiate-cellular structure, about half a mm. 

 diam., sparingly clothed with long (200-300/;), pale, straight spar- 

 ingly septate hairs about 8// thick at the base and tapering above. 

 Sporules subcylindrical, very slightly curved, obtuse, hyaline, 

 nucleate, 6-7 x \\<j.. 



Dothiorella fraxini E. & E. 



On dead Fraxinus, London, Canada. April, 1892. (J. Dear- 

 ness.) 



Perithecia globose, black, buried in the bark, thickly scattered,, 

 either singly or 2-4 together in subvalsiform groups, their short sub- 

 papilliform, black ostiola erumpent through the epidermis, with the 

 general appearance of a minute Valsa. Sporules elliptical, hyaline,. 

 18-20 x 10-12/7., on stout basidia. 



The ostiola merely rupture the bark but do not rise above it. 

 Found associated with Endoxyla fraxini E. & E. 



Differs from D.fraxinea Sacc. and Roum., in its buried perithecia 

 and larger sporules. 



