234 Illinois State Laboratory of Natural History. 



M. lycopi, Gerard. 



Hypogenous. Spots circular, distinct, or more or less con- 

 fluent, scarcely thickened, purplish brown ; secidia on the leaves 

 mostly circinate, often in a single circular row, sometimes, by 

 the confluence of the spots, loosely and irregularly scattered, 

 on the petioles and stems irregularly crowded, short, recurved 

 border abrupt and much torn; spores subglobose, epispore thin, 

 tuberculate, 15-19 /u,; spermagonia few, centrally clustered 

 above, reddish brown. 



Spots yellow ; subiculum more or less thickened ; peridia short, 

 scattered or crowded, margin crenate; spores pale yellow. Peck, 26 

 Rep. N. Y. Mus., p. 78. 



On Lycopus Europceus : Pulaski, May 2, 4424. 

 Differs from Gerard's description in the arrangement of 

 the secidia, and less swollen spots. 



M. myosotidis, Burrill. 



Hypogenous. JEcidia uniformly distributed over the leaf, 

 mostly somewhat densely crowded, rather large, somewhat 

 prominent, the recurved border wide and rather coarsely divid- 

 ed; spores subglobose or elliptical, epispore thick, conspicuously 

 fcuberculate, 15-18 by 18-22 A*; spermagonia numerous, uni- 

 formly scattered over both surfaces of the leaf, reddish yellow. 



On Myosotis verna: Union, April 12, 4026, 4029, April 13, 

 4067, April 17, 4132, April 26, 4306; Jackson, April 27, 4343, 

 April 28, 4364. 



The distribution of the aecidia is decidedly different from 

 that of jEcidium asperifolii, Pers., as described, as well as from 

 the specimens at hand, and similarly different from those 

 named JEtidium lycopsidis, Desv., sE. lithospermi, Thiim., and 

 jE. symphyti, Thiim. The three last are made synonyms of the 

 first by Winter, and all are said to be the aecidia of Puccinia 

 rubigo-vera. The latter is common in Illinois in wide areas 

 where Myosotis does not occur, and no other species of Borrayi- 

 nacece has been observed infested with the Mcidiunt. 



M. hydrophylli, Peck. 



Hypophyllous. Spots conspicuous, distinct, yellowish; 

 aecidia subcircinate, short, recurved border rather wide and 



