1894.] NATURAL SCIENCES OF PHILADELPHIA. 325 



Spores oblong-cylindrical, with an oblique apiculus below, obtuse and 

 rounded above, yellowish, about 7-septate, 15-18 x Qp., about the 

 same as in D. stillatus, from which its fan-shaped form and lateral 

 stipe will readily distinguish it. 



* * PYRENOMYCETES. 



Capnodium caespitosum E. & E. 



On living leaves of PJiotinia Japonica, Pasadena, Cala., July, 

 1894 (Prof A. J. McClatchie, No. 748). 



Perithecia subulate-cylindrical, simple or branched, 300-400 x 

 60-70//., collected into compact, convex-hemispherical clusters 1-3 

 mm. diam., scattered over the upper surface of the leaf and bristling 

 with the projecting points of the perithecia. There is no mycelium 

 spreading over the surface of the leaf, only a few erect, moniliform 

 threads mingled with the perithecia. Sporidia (sporules)? ovate, 

 3-septate and sub- hyaline at first, finally submuriform and dark- 

 brown, 12-20 X 7-10//.. We have not been able to make out the 

 asci with any certainty. 



Nectria pallida E. & E. 



On dead bark of Carya alba, Missouri, Oct., 1891 (C. H. Deme- 

 trio, No. 276 partly). 



Stroma mucedinous, white, forming small (j-l mm.) white tufts, 

 or subeffused. Perithecia 6-20 on a stroma, globose or slightly 

 ovate-globose, minutely pulverulent, about 150//. diam., pale- yellow, 

 with the ostiolum obscure. Asci clavate-cylindrical, sub-sessile, 

 40 X 6-7//., paraphysate?. Sporidia biseriate or obliquely#uniseriate, 

 oblong- fusoid, 3-4-nucleate, hyaline, apparently becoming unisep- 

 tate but not constricted, 6-8 x 2-2?//. 



Sometimes the perithecia stand singly or 2-3 together on scattered 

 shreds of the white, mucedinous stroma. 



Venturia vaccinii E. & E. 



On dead leaves of Vaccinium ovatum, Seattle, Wash., Dec, 1893 

 (C. V. Piper, No. 225). 



Perithecia hypophyllous, scattered, astomous, globose, 80-100/ji 

 diam. , rather sparingly clothed with stout, straight, black spines 30- 

 60//. long. Asci lanceolate, 25-35 x 6-7//, 8-spored. Sporidia 

 biseriate, fusoid, hyaline, subinequilateral, faintly uniseptate, 10-12 

 X 2-24//. 



