212 



W. rhoina, E. & E. Journ Mycol. I, p. 92. (Plate 23} 



Exsicc, EH. & Evrht. N. A. F. 2d Ser. 1669. 



Perithecia erumpent, densely gregarious, subseriate, subglobose, 

 black (l~i mm.), membranaceous, thin and collapsing so as to become 

 concave or patelliform. Ostiolum papilliform and mostly 4-5-stellate- 

 cleft. Asci 45-60 x 7-8 /i, broadest in the middle. Paraphyses stout, 

 linear, nucleolate. Sporidia biseriate, fusiform, yellowish, nucleolate, 

 straight or slightly curved, sometimes strongly so, 20-25 x 2|-3 t u. 



On weather-beaten wood of Rhus copallina, Newfield, N. J. 



W. tuberculifera, E. & E. Proc. Acad. Nat. Sci. Phila., Pa. July, 

 1890, p. 240. 



Perithecia gregarious, superficial, } mm. diam., depressed-globose, 

 narrowed below, tubercular roughened, collapsed and cup-shaped 

 when dry, black. Asci 35-40 x 5-6 ju. Sporidia crowded-biseriate, 

 fusoid-oblong, hyaline, 2-4-nucleate, 6-8 x 2 2 J /jt, (becoming 1-3-sep- 

 tate)? 



On bark of wild plum (Prunus), London, Canada (Dearness). 



Var. ccvspitosa, on Cerasus Virglniana, has the perithecia col- 

 lected in dense tufts 1|-2J mm. across, surrounded by the ruptured 

 epidermis, and the sporidia slightly curved, 6-10 x 2-2| /jl, 2-nucleate. 



W. crustosa, E. & E. Journ. Mycol. I, p. 149. 



Perithecia membranaceous, \-\ mm., depressed-hemispherical, 

 tuberculose, and roughly laciniate-cleft above, seated on and partly 

 connected by a thin, crustose, black subiculum more or less distinct. 

 Asci clavate-cylindrical, 65-80 x 10 //. Paraphyses soon resolved 

 into a mass of granular matter. Sporidia biseriate, fusiform, 20-25 x 

 4-5 fi< yellowish or hyaline, with a faint, gelatinous envelope ; endro- 

 chrome divided in the middle, exceptionally 2-times divided. The 

 perithecia collapse when dry, so as to resemble a Peziza with an ob- 

 tuse margin. Ostiolum not very conspicuous, papillose-conical, 4-5- 

 stellate-cleft. Allied to Winteria ordinata, (Fr.), but differs in its 

 shorter, mostly uniseptate sporidia, and depressed perithecia. 



On decorticated oak, West Chester, Pa. 



TEICH0SP0RA, Fckl. 



Symb. p. 160, Sacc. Syll. II, p. 290. 



Perithecia scattered or gregarious, superficial or with the base 

 sunk in the matrix, spherical or ovoid, coriaceous or carbonaceous, 



