570 



Considered by Berkeley in Grev. IV, p. 95, as a var. of D. du 

 ciformis, which differs in its flatter, broader, black-brown stroma an< 

 smaller asci and sporidia. 



D. albopruinosa, (Schw.) 



Sphceria albopruinosa, Schw. Syn. N. Am. 1238. 

 Diatrype roseola, Winter Journ. Mycol. I, p. 121. 

 Dialrype albopruinosa, Cke. Grev. XIII, p. 37. 

 Diatrype Durieui, Mont, in Herb. Curtis. 

 Diatrype Webberi, E. & E. in Herb. 

 ' Exsicc. Ell. & Evrht. N. A. F. 2d Ser. 2527. 



Stromata scattered or subgregarious, sometimes confluent, subor- 

 bicular, 1|-2| (exceptionally 3-4 mm.) broad, slightly convex, sur- 

 rounded by the ruptured epidermis, whitish when young and fresh, 

 becoming finally dark brown, light-colored inside, surface becoming 

 more or less rimose. Perithecia 10-30 in a stroma, crowded, ovate 

 or elliptic-oblong. Ostiola more or less prominent, 3-5-sulcate-cleft, 

 black. Asci oblong-clavate, long-stipitate, p. sp. 55-65 x 7 ft. Spo- 

 ridia conglobate, allantoid, obtuse, slightly curved, 12-16 x 2J-4 //, 

 yellow-brown. 



On dead limbs of Fagus, Pennsylvania (Schw.), on dead oak 

 limbs, Missouri and New Jersey, on Cratcegus, and Salix, London, 

 Canada (Dearness). 



This differs from D. disciformis, in its much larger asci and 

 sporidia. 



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



Suborbicular, convex, black. Ostiola conical, sulcate. Asci cla- 

 vate, long-stipitate. Sporidia slightly curved, ends obtuse, hyaline, 

 10xlJ/i. 



On branches of Eucalyptus globulus, California (Harkness). 



We have not seen this, and take the foregoing brief notes from 

 Grrevillea. 



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



Stroma pulvinate, oblong or linear, 210 mm. long by 1-2 mm, 

 wide, almost superficial and faintly circumscribed, brownish-black out- 

 side, white within. Perithecia crowded in the stroma, ovate, about 

 \ mm. diam. r with thick, black, coriaceous walls, necks short, with 

 their thick, flattened, pustulifbrm, irregularly dehiscent ostiola slightly 

 prominent. Asci clavate, paraphysate, 8-spored, p. sp. about 40 x 6 //. 

 Sporidia biseriate above, allantoid, yellowish, moderately curved 7 

 obtuse, 10-14 x 3 /i. 



