i06 Illinois State Laboratory of Natural History. 



Rock Island, Sept. 23, 1633; Fulton, Oct. 1, 1783; Jo Daviess, 

 Sept. 20, 6025. Verbena urticifolia: Piatt, Aug. 15, 1072; Mc- 

 Henry, Aug. 20, 1228; La Salle, Sept. 18, 1513; Rock Island, 

 Sept. 24, 1657; Fulton, Oct. 1, 1779; McLean, July 20, 2364, 

 Oct. 12, 1849; Ogle, Sept. 23, 6132. Verbena stricta: Cook, 

 Sept. 6, 1453; Jackson, Nov. 5, 2255; Jersey, Oct. 12, 6280. 

 Verbena bracteosa: Adams, Aug. 25 (Seymour). Hydrophyl- 

 lum Virginicum: Ogle, Sept. 25, 6153. Phlox paniculata: 

 Adams (Seymour). Phlox sps: Fulton (Wolf). Asclepias 

 variegata: Union, Sept. 22 (Earle). Parietaria Pennsylvanica : 

 Stephenson, Sept. 21, 6069; Lee, Sept. 27, 6209. Stevia sps. 

 (from greenhouse): Union (Earle). 



This exceedingly abundant and widely occurring species is 

 doubtless to be found on other hosts in this State besides those 

 enumerated above. Although widely variable it is usually 

 easily recognized by its short dark appendages and numerous 

 two-spored asci. It is usually known as E. lamprocarpa, Lev. 

 Winter, however (Die Pilze, II., p. 33), adopts De Candolle's 

 naiTie of E. dehor aceartim, and according to the law of priority 

 this seems to be correct. 



The forms on various Labiatce are often included here, but 

 they differ in having lobed haustoria on the mycelium threads. 

 On the various species of Verbena the haustoria are smooth and 

 rounded as in the forms on Compositce. 



UNCINULA, Liv. 



(Ann. Sci. Nat., Ser. III., Tome XV.) 



Perithecium containing several asci; appendages free from 

 the mycelium, recurved or coiled at the tip. 



U. ampelopsidis, Peck. 



(Trans. Albany Inst., VII., p. 218.) 



U. Americana, Howe (Erysiphei of U. S. in Jour. Bot. 1872). 



U. spiralis, B. & C. (Grev. IV., p. 159). 



U. subfusca, B. & C. (Grev. IV., p. 160). 



Amphigenous or frequently epiphyllous. Perithecia 

 85-100 /t, dark brown, opaque, reticulations small, rather 

 obscure; appendages from 10 or 12 to 20 or more, varying in 



