216 A Monograph of the Erysiphaceae 



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E. lappac Cast. Cat. PI. Mars. 192. 1845. 

 E. Duriaei Lev. Ann. sci. nat. III. 15: 165. //. 10. f. j2. 

 185 I ; Sacc. Syll. Fung. 1:17. 1882. 



E. lanuginosa Fckl. Bot. Zeit. 27. 1871 ; Sacc. Syll. Fung. 

 "1 : 20. 1882. 



E. Saxaonli Sorok. Rev. Myc. 146. //. 8g (15). 

 1889; Sacc. Syll. Fung. 9: 370. 1891. 



E. arniata Sorok. Rev. Myc. 146. //. 88 (13). 

 1889; Sacc. Syll. Fung. 9: 370. 1891. 



E. alhagi Sorok. Rev. Myc. 147. //. 8c) (15)./. 23y-23g. 

 1889; Sacc. Syll. Fung. 9: 371. 1891. 



E. pcgani Sorok. Rev. Myc. 148. pi. gi (16). /. 2^8-231. 

 1889; Sacc. Syll. Fung. 9: 371. 1891. 



E. lichenoides Trab. & Sacc; Sacc. Syll. Fung. 11 : 253. 

 1895. 



E. papilionaceanim Kom. Scripta Bot. Hort. Univ. Imp. 

 Petropol. 4: 271. 1895. 



E. lanata P. Magn. Verb. k. k. zo51.-bot. Gesell. Wien, 49: 

 100. //. J. / 20-22. 1899. 



Microsphaera Bonininelleriana P. Magn. Verb. k. k. zo6].-bot. 

 Gesell. Wien, 49 : 100.//. j./ 23-23. 1899. 



Exsicc. : Roumeg. Fung. Select. Exsicc. 6017; Rab. Fung. 

 Eur. 1520; and 1735 sub E. communis; Sacc. Myc. Yen. 1169 

 sub E. lamprocarpa; Syd. Myc. March. 1076 ; and 1 351 sub E. 

 cichoraeeannn : de Thum. Myc. Univ. 2153 sub E. lamprocarpa; 

 Erb. Critt. Ital. sen 2, 145 sub E. communis ; and 445 sub £". 



a 



M 



Amphigenous, often covering the whole plant; mycelium 

 usually persistent, effused, densely compacted, tomentosc-mem- 

 branaceous, or crustaceous, usually white, rarely pale buff in 

 places, sometmies, however, wholly evanescent ; perithecia scat- 

 tered or gregarious, usually more or less immersed in the per- 

 sistent mycelium, large, 135-240 /. in diameter, usually about 

 200 //, soon becoming concave, cells obscure ; appendages usually 

 very numerous, densely interwoven, rather short, more or less 

 vaguely branched, colorless or brown, sometimes very short or 

 even obsolete ; asci 7-38, usually about 20, large, from narrowly 

 cylindrical to ovate, usually longly pedicellate, 75-110 (usually 

 abou 90) X 28-40 ;.; spores 2, large, variable in size, usually 

 about 32 X iS//, but varying from 28-40 x 14-22 n, sometimes 

 slightly curved. ^ 



