22] 



Sph. nigro-hrunnea and Sph. Hydrangem, bursting out in crowded 

 patches through the fibers of the inner bark, very variable in shape, at 

 length confluent. Perithecia globose or cylindrical, sometimes ventri- 

 cose above, black, rugose. Ostiola more or less prominent, cylindrical, 

 umbilicate. When young covered by the epidermis, and then, only 

 the ostiola are visible ; at length bare and often broken away, leaving 

 only the pezizoid base. 



Under the epidermis of Rhododendron maximum, Bethlehem, 

 Pa. (Schw.) 



This and the preceding species were mentioned on p. 163. We 

 give here a translation of the diagnoses published by Schweinitz, but 

 it is impossible to tell whether they belong here or in the Fam. Trich- 

 osphcerieae. 



FAMILY. LOPHIOSTOMEJ:. 



Stroma none. Perithecia generally more or less buried at first, 

 sometimes with only the ostiolum projecting, finally more or less emer- 

 gent or even superficial, carbonaceous or subcoriaceous. Ostiolum 

 laterally compressed, obtuse, sometimes forming an elevated ridge 

 across the top of the perithecium and opening by an elongated slit 

 instead of a round pore as in the other families of the Sphmriacem. 



In this family the number of septa in the sporidia, at different 

 stages of their growth, is unusually variable ; the color also runs from 

 hyaline, through various shades of brown, so that these two characters, 

 unaccompanied as they are, by any distinctive vegetative peculiarities, 

 do not seem to be of generic value; we have therefore followed Winter 

 & Cooke, in reducing LopMosphcera and Lophiotrema to mere sub- 

 genera. 



LOPHIOSTOMA. Ces & I)e Not. 



Schema di Class. Sferiacei, p. 45. 



Perithecia and ostiola as noted in the characters of the Family. 

 Asci paraphysate. Sporidia oblong or subfusoid, 1-multiseptate, hya- 

 line or brown. 



A. Sporidia 5-9-septate, brown. 



L. macristomura, (Tode). 



Spharia macrostoma, Tode, Eungi Meckl. II, p. 12. 

 Lophiosloma macrostomum, Ces. & De Not. Schema, p. 45. 

 Exsicc. Fckl. F. Rh. 923.— Rab. F. E. 2040. 



Perithecia scattered, at first buried, at length more or less emerg- 

 ent, or even nearly superficial, sphasroid, about | mm. diam., with a 



