TYMPAXIS. 351 



Exs. Fries, "ScL Suec.," No. 101; Fckl., "F. Rh.," 

 1964; Cooke, "Fung. Brit./' ii. 196; Rabh., "Fung. Eur.," 

 2021; Phil., "Elv.Brit.," 43; Roumg, "Fung. Gal.," 1266. 



On dead raspberry-stems. Common. 



A doubtful Cenangium. 



Name Rubus, a genus of Rosacece ; from its habitat, 



Church Stretton, Salop ! 



GENUS IV. TYMPAXIS. Toda. 



Csespitose or scattered, stipitate or sessile, black, at 

 first closed, then open, concave or plane, naked or rarely 

 mealy, firm, horny ; sporidia 8 or innumerable. Secondary 

 fruit pycnidia, spermogonia, or stylospores. (Plate XI. 

 fig. 67.) 



On dead wood. 



Name TV/HTTCIVOV, a drum. 



ARRANGEMENT OF THE SPECIES. 



A. Sporidia oblong-elliptic . . . . . . species 1 



B. Sporidia linear-fusiform . . . . . . 2 



c. Sporidia very minute, innumerable . . 3-8 



KEY TO THE SPECIES. 



In linear series : on Khamnus Frangula . . . . FrangulsB. 



Gregarious or solitary : on lAgustrum vulgare . . ligustri. 



Scattered or csespitose : on Pinns sylrestris . . amphibola. 



Scattered or csespitose : on Larix Europxus . . laracina. 



Csespitose in elongated groups : on Crattegus . . conspersa. 



Cseapitose in elongated groups : on Fraxinus . . Fraxini. 



Csespitose in rounded groups : on Sorbus aucuparia Aucuparix, 



Csespitose in rounded groups : on Alnus .. .. alnea. 



A. SPORIDIA OBLONG-ELLIPTIC. 



1. Tympanis Frangulce. Fries. 



Gregarious or in linear contiguous series, turbinate- 

 truncate, blackish, subcoriaceous ; hymenium plane, 

 umber or olive-brown, when dry black; asci broadly 

 eylindraceo-oblong, narrowed at the base ; sporidia 4, 

 oblong-elliptic, becoming 3 to 4-septate, 19 22 X 8/x; 

 paraphyses filiform, slightly enlarged at the apices. 



' Pycnidia intermixed with the above, sphseriaform, 



