2 



Mycologia 



tirely white when young-, becoming overcast with a faintly red- 

 dish or lilac tint, reaching a diameter of 3-6 cm.; hymenium 

 concave, becoming plane or convex and usually umbilicate, color 

 varying from white when young to rosy, pale-violet, or slightly 

 brownish; asci cylindric or subcylindric, reaching a length of 

 225-250 /* and a diameter of 10 /*,; spores i-seriate or slightly 

 crowded, small, ellipsoid, usually containing two small oil-drops, 

 smooth, becoming sculptured, 5-7 X 12-13 /a; spore-sculpturing 

 assuming the form of minute warts or papillae ; paraphyses slen- 

 der, septate, enlarged above, where they reach a diameter of 



7-8 



On old burnt places which have been overrun with mosses. 

 Type locality : France. 



Distribution : New York and Texas ; also in Europe. 

 Illustration : Bull. Soc. Myc. Fr. 15 : pi. 3, f. 1 ; Boud. Ic. 

 Myc. pi. 293. 



Peziza violacea Pers. Syn. Fung. 639. 1801 



Peziza Boltoni Quel. Bull. Soc. Bot. Fr. 25: 290. 1878. 

 Aleuria violacea Gill. Champ. Fr. Discom. 47. 1879. 

 Peziza ampelina Quel. Grevillea 8: 116. 1880. 

 Humaria violacea Sacc. Syll. Fung. 8 : 149. 1889. 

 Aleuria Boltoni Gill. Champ. Fr. Discom. 206. 1886. 



Apothecia gregarious, sessile or substipitate when young, at 

 first closed and subglobose, gradually expanding, becoming shal- 

 low cup-shaped, discoid, or occasionally repand, at first regular 

 in form, becoming irregular, the margin often splitting, externally 

 at first white, finally becoming pale-violaceous, reaching a diame- 

 ter of 3 or 4 cm., although often much smaller ; hymenium con- 

 cave, plane, or convex, pale-violet when young, becoming deep- 

 violet with age, finally almost black, even or slightly uneven and 

 usually umbilicate ; substance very soft and brittle ; asci cylindric 

 or subcylindric, gradually attenuated below, reaching a length of 

 200-250 ix, and a diameter of 12-15/*, 8-spored; spores 1 -seriate, 

 or irregularly disposed, ellipsoid, usually containing two small 

 oil-drops, hyaline, becoming sculptured, 8 X 12-13 /x; spore- 

 sculpturing consisting of very minute warts ; paraphyses slender, 

 septate, enlarged above, usually curved and filled with violet 

 granules, reaching a diameter of 8 \x, at their apices. 



