404 Illinois State Laboratory of Natural History. 

 E. galeopsidis, DC. 



(Flore Franc, VI., p. 108.) 



'E. lamprocarpa, Lev., in part. 



E. labiatarum, Chev. (Flora Paris, III., p. 380). 



Araphigenous. Mycelium abundant, persistent, haustoria 

 of the mycelial threads lobed; perithecia somewhat aggregated; 

 appendages numerous, short, flexuous, colored, interwoven with 

 the mycelium; asci numerous, often 12 or more; spores 2, 

 mostly formed late. 



On Stachys palustris: Henry, Sept. 28, 1705. Stachys 

 sps.: Stephenson, Sept. 13, 5812. Teucrium Canadense: La- 

 Salle, Sept. 29, 6239. Scutellaria parvula: Lee, Sept. 27, 6208. 

 Scutellaria lateriflora: McLean, Sept. 6 (Seymour). 



This can scarcely be separated from E. cichoracearum by 

 the characters of the perithecia, but the difference in the haus- 

 toria, first pointed out by De Bary (Morph. und Phys. der Pilze, 

 IIL, p. 49), can be observed by first soaking a portion of the 

 leaf in caustic potash and then removing a little of the myce- 

 lium to the slide. In our specimens the perithecia and append- 

 ages are rather lighter colored than is usual in E. cichora- 

 cearum. 



E. cichoracearum, DC. 



(Flore Franc, II., p. 274.) 



Alphitomorpha communis, y depressa, horridula, Wallr. (Verhandl. 



Natarf. Freunde, IV). 

 Alphitomorpha lamprocarpa, Schl. (Verhandl. Naturf. Freunde, I., 



p. 49). 

 Erysihe communis, lamprocarpa, depressa, horridula, Lk. and Rabh. 

 Erysiphe horridula, Montagnei, lamprocarpa, L^v., in part. 

 Erysiphe amhrosiie, verhense, phlogis, asterum, Schweinitz, (N. A. 



Fungi, p. 270). 



Amphigenous. Mycelium abundant, persistent, haustoria 

 rounded, not lobed; perithecia variable; appendages numerous, 

 mostly short, 1-2 times the diameter of the perithecium, col- 

 ored, much flexed and interwoven with the mycelium; asci 



