1894.] NATUKAJ> SCIENCES OF PHILADELPHIA. 353 



pale spot which is often visible also on the upper side of the leaf, but 

 often without any spot, orbicular or somewhat irregular in outline 

 f-1 mm. diam., with a prominent, light colored, 3-4-cleft margin, 

 Hymenium glaucous white, plane. Asci clavate-cylindrical, sessile, 

 70-75 X 6,'/. Paraphyses filiform, branched at the tips and bearing 

 minute, subglobose, hyaline conidia. Sporidia filiform, multinucle- 

 ate, hyaline, 50-55x1^-2/7.. 



This is a more robust species than S. quercifolia Cke., which also 

 has longer asci and narrower sporidia, but the two are closely allied. 



Stictis chrysopsis E. & E. 



On dead stems of Ceanothus integerrimus, Columbia River, W. 

 Klikitat Co., Wash., Jan. 1894 (W.N. Suksdorf, No. 309). 



Ascomata scattered, immersed, exposed above and at first covered 

 with a thin, white membrane, soon open, urceolate, exposing the deep 

 orange-colored disk, 1-1 o mm. diam. Asci cylindrical, 200-225 x 

 8-10/^. Paraphyses filiform, about as long as the asci, simple, scarcely 

 thickened above, about 1," thick. Sporidia filiform, multinucleate, 

 nearly as long as the asci, li— 2// thick, hyaline, interwoven. 



Schizoxylon compositum E. & E. 



On dead twigs of Quercus coccinea, Newfield, N. J., and on dead 

 twigs of Symphoricarpos occidentalis, Rockport, Kansas (Bartholo- 

 mew). 



Ascomata erumpent-superficial, discoid, white pruinose, f-lj mm. 

 diam. Disk, when the white pruinose layer disappears, distinctly 

 olivaceous. Asci fusoid-cylindrical or lanceolate, 150-200 x 8-10//, 

 8-spored, short-stipitate. Sporidia linear, 100-150 x 3-4//. Sepa- 

 rating into elliptical or oblong joints 5-8 x 3-4//. 



This differs from all the other species in the excipulum, containing 

 often 2-6 distinct ascigerous nuclei, resembling on a horizontal sec- 

 tion, so many imbedded perithecia. The paraphyses are filiform 

 and more or less recurved and branched above. 



Sphaeropeziza Coloradensis E. & E. 



On decorticated stems of PotentUla frxiticosa. North Park, Colo. , 

 July, 1894 (Prof C. S. Crandall, No. 30). 



Ascomata scattered, erumpent-superficial, about f mm. diam., 



subglobose and closed at first, then depressed and dehiscent above, 



with the fimbriate-lacerate margin incurved. Asci clavate, 45-50 



X 5-6//, sessile and closely surrounded and overtopped by the con- 



24 



