STEMONITIS 1 2 1 



spores by transmitted light very pale, brownish, minutely warted, 

 7-9 /^. " Plasmodium lemon yellow." 



This is .S". femtginea Ehrenb. as known in Europe ; the form 

 hitherto known by this name in America, will be referred to in 

 connection with the description of Species No. 10. The species 

 as here described includes vS. herbatica Peck, which is doubtless 

 our eastern representative of the form. 



On the Pacific coast the species is not uncommon from Mon- 

 terey to Seattle, and affords another illustration of the oft-noted 

 fact that forms along the Pacific side of the continent more 

 closely resemble those of Europe than do those of the Atlantic 

 seaboard. 



Bulliard's name is here adopted as the earliest that can with 

 any certainty be applied. His figure can refer to no other 

 European specimen. 6". typJiina of Wildenow is, we think, 

 rightfully regarded as synonymous with .S. typlwides Bull. See 

 Persoon, Obs., I., p. 57. 



10. STEMONITIS SMITHII Macbr. 



1893. Stemonitis smtiMMacbr., Bull. Lab. Nat. Hist, la., II., p. 381. 



1894. Stemonitis microspora Lister, Morg., Jour. Cin. Sac., p. 54. 



Sporangia in clusters, close packed and erect, not spreading, 

 bright ferruginous prior to spore dispersal, cylindric, stipitate, 

 of varying height; stipe jet black, shining, about one-third the 

 total height ; hypothallus generally well developed ; columella 

 black, gradually tapering, at length dissolving in capillitial 

 threads and net some distance below the diminished plumose 

 apex ; capillitium of fuscous threads, the inner network of 

 sparingly united branches uniformly thickened, the surface net 

 composed of small, regular, polygonal meshes, the peridial pro- 

 cesses few; spore-mass bright ferruginous, spores by trans- 

 mitted light pale, almost colorless, smooth, 5-7 /*. 



The species as now constituted includes forms varying in 

 size from 2.5-25 mm. ! The common form heretofore known 

 everywhere in America as 6". ferruginca is from 10-15 mm. 

 high. The type to which the specific name 5. smithii was 



