Genus Lepiota 341 



timates that L. mastoidea may bo only a small form of L. gra- 

 cilienta. The fact of the matter is, that various European 

 writers pass along suggestions about a number of species of the 

 Procerae group, but rarely make an exhaustive study of any of 

 them. 



Lepiota parvannulata (Lasch) Fr. — A species scarcely if at 

 all understood in this country. According to Fries, "The only 

 species with which it can be confused is L. ennvnea, which agrees 

 in color and is found in similar places (i.e. in grassy fields), but 

 which is much larger and differs in the superior, torn annulus, 

 the glabrous pileus and its odor of radish." 



Lepiota seminuda (Lasch) Quel. — This is hardly ever re- 

 ferred to by modern American collectors. Bresadola makes the 

 suggestion (Ann. Myc, 18: 64. 1920) that L. cristatatella Pk. 

 is identical. By letter, he had given this opinion to Americans 

 a long while before. Atkinson (3) reproduces excellent photo- 

 graphs of it, from both French and American collections. Mur- 

 rill (North American Flora, 10: 48) includes it. In my opinion, 

 it is nevertheless probable that two distinct forms occur. In 

 Michigan we have the typical form described by Peck, but far- 

 ther south, especially around Washington, D. C, I have collected 

 a somewhat larger plant which fits the description and figures of 

 L. seminuda much better than it does that of the little L. cris- 

 tatatella. 



Comments on Excluded or Doubtful Species* 



Lepiota albo-sericea P. Henn. — This name is used by 

 Lange for a plant of which he gives a description. He says it is 

 likely that it is the same species as L. serena Fr. and is identical 

 with the larger form of L. parvannulata Fr. 



Lepiota angustata Britz.-Morg. — This is too close to L. 

 cristata Fr. 



Lepiota asprata Berk. — Fries, in Hijmen. Europ., refers 



this to Pholiota muricata Fr. 



* No complete list of possible synonyms or exclusions among the older 

 names, such as are mentioned by Saccardo, can be given here. However, an 

 attempt is made to include most of the names that have been used for dis- 

 carded species in this country, as well as certain ones from Europe. 



