330 The North American Cup-Fungi 



Apothecia erumpent in congested masses 1 cm. or more in 

 diameter, the individual apothecia black, or with a purplish 

 tinge (decidedly purple when teased out), irregularly cup-shaped, 

 closing when dry and often irregularly hysteriform, externally 

 furfuraceous; reaching a diameter of 2-4 mm.; hymenium con- 

 cave, similar in color to the outside of the apothecium; asci 

 clavate, tapering very gradually into a long, stem-like base, 

 reaching a length of 135 /x and a diameter of 12 /i, 8-spored; 

 spores irregularly 2-seriate above, fusoid, granular within, often 

 slightly constricted near the center and appearing pseudoseptate, 

 5-6 X 15-22 fx; paraphyses very slender, branched above and 

 forming a purplish epithecium. 



Forming cankers on trunks of Pinus ponderosa. 



Type locality: Europe. 



Distribution: Idaho; also in Europe. 



Illustrations: Phytopathology 11: 294, /. ;,- 295, /. 2; 

 Mycologia 37: 357,/. 3 (lower figure). 



The only American material seen was collected in Idaho by 

 J. R. Weir who writes: "forming cankers on 16-year old pine, 

 causing a black deposit to form." As pointed out by Karsten 

 that species is similar to G. pinicola so far as apothecial char- 

 acters are concerned. The specific name selected by Karsten 

 doubtless indicates that it is a sister species to that one which 

 was listed in the same paper. Both have the blue character with 

 transmitted light which, however, was not mentioned by Karsten. 

 Examination of authentic material of both species shows it to be 

 present. The spores in this species are shorter and broader than 

 in that one. It also has a black subiculum not noted in G. 

 pinicola. 



24. Godronia Treleasei (Sacc.) Seaver, Mycologia 37: 355. 

 1945. 



Scleroderris Treleasei Sacc. in Harriman Alaska Exped. 5: 24. 1904. 

 Atropellis Treleasei Zeller & Goodding, Phytopathology 20: 562. 1930. 



Apothecia solitary, or gregarious, at first erumpent then 

 entirely superficial, mostly sessile, at first pitcher-shaped, closed 

 then scutellate, laciniately-dehiscent, 2.5-4 mm. in diameter, 

 expanding to 3-5 mm. when moistened, outside and margins 

 torn, dusky purplish-gray, carbonaceous, rugose; hymenium 

 flatly-concave to convexly expanded, waxy, pinkish-cinnamon; 

 asci clavate with obtusely acute apices, long-stipitate, 8-14 X 



