329 



DITOPELLA, De Not. (Plate 32) 



Sferiacei Ital. p. 42. 



Perithecia corticolous, covered. Ostiolum suberumpent. Asci 

 subclavate, polysporous, aparaphysate. Sporidia oblong or fusoid, 

 continuous, subhyaline. 



D. Hosackise, (Cke. & Hark.) 



Sphisrella? HosackicE, Cke. 8z; Hark. Grev. IX, p. 86. 

 Ditopella Hosacki(S, Sacc. Syll. 1739, Cke. Syn. 4111. 



Scattered, covered, puuctiform. Perithecia globose-depi'essed. 

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

 hyaline, about 6x2J ji. 



On twigs of Hosachia, 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 [Dichomera 

 HosacUcB, E. & E. in Herb.) 



FAMILY. PLEOSPOREJ:. 



Perithecia membranaceous or coriaceous, generally with a papilli- 

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

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

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

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

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

 filiform. 



DIDYMOSPHiERIA, Fckl. 



Symbolse Mycol. p. 140. 



Perithecia covered by the epidermis, submembranaceous, with a 

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

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



D. palnikcea, (Cke.) 



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

 Anthostomella palmacea, Sacc. Syll. 1085. 

 ZHdymospharella palmacea, Cke. Syn. 4675. 



Immersed, covered. Perithecia very small, subglobose, about 

 100 // diam. Ostiolum punctiform, barely erumpent. Asci cylin- 

 42 



