571 



On decorticated dead limbs of Madura aurantiaca, London, 

 Canada (Dearness). 



On account of its elongated stroma and large sporidia, this seems 

 quite distinct. 



D. pr6niineiis, Cke. & Hark. Grev. IX, p. 85. 



Stromata erumpent, pulvinate, hemispherical 2-3 mm. diam. or 

 oblong 2-3 X 1 mm., closely girt by the epidermis which also adheres 

 in fragments to the surface, whitish or cinereous inside. Perithecia 

 8-15 lying in the Ijottom of the stroma, about \ mm. diam. Ostiola 

 rather large, stellate-cleft. Asci subsessile, p. sp. 35-40 x 6 /i. Spo- 

 ridia subbiseriate, allantoid, slightly curved, yellowish, 6-8 x2 fi. 



On Arbutus Menziesii, and Mimulus glutinosus,. California 

 (Harkness). 



' The specimen on Mimulus glutinosus^ sent by Harkness, has the 

 stromata smaller (1-2 mm.), less distinctly erumpent and dark inside, 

 and the sporidia larger (8-10x2 ;/), and hardly seems to be the same 

 as that on Arbutus. Sporidia (sec. Cke.) 12-13 x 2 [i. 



D. infuscans, E. & E. (in Herb.) 



Stromata gregarious, small (1-1| mm.), conic-hemispherical or 

 tuberculiform, closely covered (except the apex) with the adherent, 

 blackened epidermis. Perithecia 3-6 in a stroma, globose, thin-walled, 

 J-J mm. diam., contracted above into short necks, with the large, 

 tuberculiform ostiola crowded and erumpent together. Asci (p. sp.) 

 25 x 4 jU, with a slender stipe of about the same length, and filiform 

 paraphyses, 8-spored. Sporidia biseriate, allantoid, slightly curved, 

 yellowish-hyaline, 5-6 x 1|-1| [J-. 



On dead stems of Smilax, Houston, Texas (Ravenel 242). 



The epidermis is blackened around the pustules, and where they 

 stand near each other, it is also blackened continuously between them. 

 This is distinct from D. smilacicola (Schw.), on account of its very 

 different stroma and smaller sporidia, and from Diatrypella promi- 

 nens Howe, which outwardly it much resembles, by its 8-spored asci 

 and prominent ostiola. 



D. smilacicola, (Schw.) 



Sph^ria smilacicola, Schw. Syn. N. Am. 1251. 



Subpulvinate-effused, seated on the epidermis, surrounded by a 

 kind of sterile, sublobate margin which adheres to the wood and leaves 

 a black line. Perithecia few, subprominent, black on the surface and 

 black or dark brown inside. Stroma scanty, pulverulent. It occurs 



