ASCOMYCES. 4.03 



Craigiebuckler Wood, Aberdeen ! (Dr. James W. H. 

 Trail). 



B THE MYCELIUM SPREADING ONLY BETWEEN THE 

 EPIDERMAL CELLS AND THE CUTICLE. 



(a) Asci furnished with a stem-cell. 



5. Ascomyces Tosquinetii. West. 



Producing blisters on the upper surface of the leaves ; 

 asci cylindrical or cylindraceo-clavate, round at the sum- 

 mit, truncate at the base ; sporidia 8, spherical, 4 — 5 fi 

 broad. 



Ascomyces Tosquinetii — West in " Bull. l'Acad. Belg.," 

 ser. 2, vol. xi. p. 655 ; Phil, and Plow., " Grevillea," vi. p. 

 25 ; Gill., " Champ.," p. 201. Exoascus Alni — De Bary 

 in Fckl., " Symb. Myco.," p. 252. Taphrina alnitorqua 

 — Tul., " Ann. Sc. Nat.," ser. 5, vol. 5, p. 130. Exoascus 

 Tosquinetii — Sacc, " Mich.," iv. p. 433. 



Exs.— Fckl., "F. Rh.," 2276; Rehm's "Asco," 217; 

 Phil., "Elv. Brit.," 150; Rabh, " Fung. Eur.," 1837; 

 Thum, " Fung. Aus," 183 ; and ? Mycoth. Univ.," 81. 



On living leaves of Alnus glutinosus. July and 

 August. 



Name — After M. Tosquinet. 



6. Ascomyces Alni. B. and Br. 



Deforming the inflorescence ; sporidia numerous in 

 each ascus. 



Ascomyces Alni — B. and Br., "Ann. Nat. Hist.," No. 

 1628 ; " Grevillea," v. p. 62 ; not Exoascus Alni — De 

 Bary. Exoascus alnitorqua, form Alni incance — Kuhn 

 in Rabh., " Fung. Eur.," No. 1616. Ascomyces Tosquinetii 

 (West) — Kunze, " Fung. Sel.," 369. Exoascus Alni, De 

 Bary, form strobilina — Thum. in Rehm's " Asco.," 518. 



Exs.— Rabh., ". Fung. Eur.," 1616; Kunze, "Fung. Sel.," 

 369; Rehm, " Asco.," 518. 



On female catkins oi Alnus glutinosus. 



Differs from other species in the asci containing more 

 numerous sporidia, which are only 0002 to 0C03 inch 



