370 The North American Cup-Fungi 



North American Fungi 1961 is a Godronia. Other specimens, 

 however, do not show the Godronia type of spore so the species is 

 allowed to remain in the present genus. 



3. Tympanis spermatiospora (Nyl.) Nyl. Not. Soc. Fauna FI. 



Fenn. 10: 70. 1869. 



?Dermea populnea Schw. Trans. Am. Phil. Soc. II. 4: 237. 1832. Not Peziza 



populnea Pers. 1797. 

 Patellaria spermatiospora Nyl. Not. Soc. Fauna FI. Fenn. 4: 125. 1858. 

 Cenangium- popidinum Fuckel, Symb. Myc. 268. 1869. 

 Tympanis populina Sacc. Bot. Cent. 18: 247. 1884. 

 Cenangium spermatiosporiim Sacc. Syll. Fung. 8: 560. 1889. 

 ? Cenangium Schweinitzii Sacc. Syll. Fung. 8: 576. 1889. 



Apothecia erumpent, occurring either singly, or more often in 

 dense, cespitose clusters, the individual apothecia short-stipitate, 

 at first closed and knob-like, opening and gradually expanding 

 and becoming shallow cup-shaped, or turbinate, black, reaching 

 a diameter of 1 mm.; hymenium concave, or nearly plane, 

 brownish-black; asci clavate, reaching a length of 75-80 /x and a 

 diameter of 12 /i, densely filled with spore-like bodies 1 X 3- 

 3.5 jj.; paraphyses slender, enlarged above, the ends adhering 

 and forming a brown epithecium. 



On dead branches of Populus, especially Populiis tremuloides. 



Type locality: Europe. 



Distribution: Newfoundland to New York, Idaho, Colorado 

 and Iowa; also in Europe. 



4. Tympanis Oxydendri Ellis & Ev. Proc. Acad. Sci. Phila. 1894: 



352. 1894. 



Apothecia erumpent in cespitose clusters of three to five each, 

 the individual apothecia expanding and becoming subturbinate, 

 reaching a diameter of .5-. 75 mm. ; hymenium becoming plane, or 

 convex, lighter than the outside of the apothecium, greenish- 

 black when dry; asci cylindrical-clavate, reaching a length of 

 110-130 /i and a diameter of 15-18 yu, filled with minute spore- 

 like bodies 1 X 2.5-3 /x; paraphyses slender, abundant, freely 

 branched, hyaline. 



On dead limbs of Oxydendrum arhoreum. 



Type locality: Nuttalburg, West Virginia. 



Distribution: Known only from the type locality. 



ExsiCCATi: Ellis & Ev. N. Am. Fungi 3043; Fungi Columb. 

 247. 



