'5 

 05 



197 



Louisiana (Langlois. 2283). has the perithoda densely gregarious and 

 emergent-superficial, the hair.- around the base tow-colored and finally 

 disappearing. 



Rh. tinctnm. (E. & E.) 



Ceratostnma tinctnm, E. & E. Bull. Wash. Coll. vol. I, p. 5. 

 Rhyncostoma tinctum, Sacc. Syll. 6620. 



Perithecia erumpent-superficial, ovate-globose, 165-250 // diain 

 roughened with projecting points. Ostiolnm filiform, -| mm. long 

 nearly smooth, sometimes a little swollen just below the apex, which 

 is often crowned with a globule of ejected sporidia half as large as the 

 perithecium itself. Asci subcylindrical. about 30 x 7 //, subsessile, 

 with filiform paraphyses. Sporidia biseriate, oblong-elliptical, sub- 

 acute. uniseptate, 6-7 x 2J-3 11, brown. 



On dead wood of Acer macrophyll /////. Klikitat Co., Washington 

 (Suksdorf). 



Closely allied to Rh. minutum, Karst. 



Rh. altipetmn. (Pk.) 



Spharia altzpeta, Pk. Bot. Gaz. vol. V, p. 36. 

 A'hyncostoma altipetum, Sacc. Syll. 2769. 



ia minute,subglobose, black, immersed. Ostiola 

 subconical or cylindrical, nearly as long as the perithecia. Asci 

 rvlindriral. Sporidia imiseriate. oblong, colored, 16-17 xo //, hyaline 

 at one end, uniseptate near the other. 



On decaying wood. Mt. Washington. N. Y. 



/ C3 



The peritheria sometimes occur in long lines. When young, the 

 sporidia are colorless, but they soon become colored, except at one 

 <Mid, and contain two nuclei. Finally a septum is formed near the 

 colored end of the sporidium. 



Rh. sphipriiu'ola, (Sclnv.) 



Sph&ria spluzrincola, Schw. Syn. N. Am. No. 1611. 



Perithecia densely gregarious, rather soft, erect, dark brown, 

 very rou.ii'h. Ostiolum of medium length, rigid, oblique, only a little 

 longer than the ovate perithecia. 



On decaying Nummularia Bulliardi, Carolina. Very rare 

 quite different (sec. Schweinitz) from Melanospora 



CERATOSPHJ1RIA, Niessl. 



Not. Pyr. p. 43, (emendedj. 



Perithecia semiimmersed or superficial, coriaceous or subcarbona- 



