329 



DITOPELLA, De Not. (Plate 32) 



Sferiacei Ital. p. 42. 



Perithecia corticolous. covered. Ostiolum suberumpent. 

 subclavate, polysporous. aparaphysate. Sporidia oblong or fiisoid. 

 continuous, subhvaline. 







D. Hosai'kise, (Cke. & Hark.) 



Sphtzrella? Hosackicz, Cke. & Hark. Grev. IX, p. 86. 

 Ditopella Hosackicz, Sacc. Syll. 1739, Cke. Syn. 4111. 



Scattered, covered, punctiform. Perithecia globose-depressed. 

 Asci clavate, sessile, containing about 16 sporidia, which are ellipsoid. 

 hyaline, about 6x2| /*. 



On twigs of ffosackia, California. 



The specc. sent by Harkness afford only subcuticular, flattish 

 perithecia filled with elliptic-oblong, brown stylospores. 3-septate, 

 with one or two cells divided by a longitudinal septum (Dichompwi 

 ffosackice, E. <t E. in Herb.) 



FAMILY. PLEOSPORE.E. 



Perithecia membra naceous or coriaceous, generally with a papilli- 

 form or shozi-conical ostiolum, or even simply pierced above, buried 

 in the matrix with only the ostiolum projecting, finally often erunipent 

 and nearly free and superficial by the falling away of the epidermis. 

 Asci clavate-cylindrical, paraphysate. Sporidia 1- or more-septate. 

 (muriform in Pleospora), mostly colored, elliptical, oblong, fusoid or 

 filiform. 



DIDYMOSPILERIA, Fekl. 



Symbolse Mycol. p. 140. 



Perithecia covered by the epidermis, subinernbranaceous, with M 

 minute, papilliforni ostiolum. Asci paraphysate, 4-8-spored. Spo- 

 ridia ovoid-oblong, uniseptate, colored (brown). 



D. palmacea, (Cke.) 



Sphtzria palmacea, Cke. Grev. VII, p. 12. 

 Anthostomella palmacea, Sacc. Syll. 1085. 

 Didymospluzrella palmacea, Cke. Syn. 4675. 



Immersed, covered. Perithecia very small, subglobose, about 

 100 fj. diam. Ostiolum punctiform, barely erunipent. Asci cylin- 

 42 



