UXCIXULA 



99 



(Algerian) specimen is in Montagne's herbarium in the herbarium 

 of the Paris Museum. The Japanese example (now in the Kew 

 Herbarium), on Ulmus campcstris, was sent to me by Prof. Miyabe, 

 and agrees perfectly with European specimens. This is the first 

 record of U. clandcstina from Asia. 



5. U. NEGATOR (Schwein.) Burr. [Fig. 86] 

 Erysiphe necator 'Sizh.wftm. Syn. Fung. Am. Bor. 270. 1834; 



Sacc. Syll. Fung, i : 22. 1882. 

 E. Tuckeri Berk. J 



1S55; de 



Bary, Beitr. Morph. Phys. Pilz. i : § xiii. 50. 1S70; Sacc. Syll. 

 Fung. I : 20. 1882; Wint. in Rabenh. Kr\^pt. Fl. Deutschl. 1- : 

 34- 1884. 



Sph 



1869 



70. 



Unciiiula Americana E. C. Howe, Journ. of Bot. H. 1 : 170 

 1872; Sacc. Syll. Fung, i : 8. 18S2. 



U. spiralis Berk. & Curt. Grevillea, 4 : 159. 1876; Atkins 

 Journ. Elisha Mitch. Sci. Soc. 7: 66. 1891 ; Jacz. Bull. i'Herb 



Boiss. 4 : 739. 1896. 

 U. subfusca Berk, i 



160. 1876. 



U. spiralis, vsx.raceniosuin Thiim. Pilz. des Weinst. 12. 187S. 



U. ampelopsidisVcck, Trans. Albany Inst. 7: 216. /. 16-18, 

 1872 ; Peck, Reg. Rep. 25: 96. 1873 ; Sacc. Syll. Fung. 1 : 7. 

 1882 ; Burr. & Earie, Bull. 111. State Lab. Nat. Hist. 2 : 406. /. j. 

 1887. 



U. nccaior (Schwein.) Burr. ; Ell. & Ever. N. Amer. Pyren. 



15. 1892. 



Erysibe Tuckeri (Berk.) Schroet. ; Cohn's Krypt. Fl. Schles. 



3 '■ 241- 1S9 



Exsicc: Rab.-Wint. Fung. Eur. 3745 ; Ellis, N. Amer. Fung. 



133 ; de Thuem. M> 



Exsicc. 4757; *Seym. and Earle, Econ. Fung. 4, 5; * Ell. and 



Everh. Fung. Columb. 415 ; * de Thuem. Pilz. des Weinst. 5. 



Amphigenous, mycelium usually subpersistent, ver>' thin and 

 effused, or forming circumscribed patches, sometimes evanescent : 

 perithecia usually epiphyllous, sometimes hypophyllous, occasion- 

 ally occurring on the inflorescence, globose-depressed, more or less 

 scattered, 70-128 />« in diameter, averaging 98 /J, cells distinct. 



Fung. sel. 



