32 Jo2unal of Mycology [Vol. 13 



Nephlyctis elegans (Schroet.) Arthur nom. nov. 



Puccinia elegam Schroet., Hennings in Hedw. 35 :238, 1896. 

 On Stcnolohinm Staiis (L.) Don {Tecoma Stans Juss.), Argen- 

 tine, Brazil. 



Nephlyctis transformans (E. & E.) Arthur nom. nov. 



Puccinia transformans E. & E., Erythea 5:6, 1897; Puc- 

 cinia exitiosa Syd. & Holw., Sydow IMonog. Ured. 1 1245, 1902. 

 On Stcnolohium Stans (L.) Don, Lower California, Mex., Cuba, 

 Bahama Islands. On Stenolobium nioUe (H. B. K.) Seem. (Te- 

 coma mollis H B. K.) Mexico. 



Purdue University, Lafayette, Ind. 



THE GENUS CORTINARIUS WITH KEY TOITHE 

 SPECIES. 



BY C. H. KAUFFMAN. 



The editor of the Journal has asked me to furnish an ac- 

 count of the genus Cortinarius with Key to the species. What 

 follows is given in response to this invitation. I desire to call 

 attention to what was published in the Bulletin of the Torrey 

 Botanical Club, based mainly on my study of the species found 

 at Ithaca, N. Y. The cuts prepared for the illustration there 

 have been kindly loaned for use here. 



I quote from the same article the following: 

 "It is absolutely useless to pick up an old, dried specimen of 

 Cortinarius, and ask any one to recognize it. Once in a while 

 some easily known plant may be recognized in that way, but in 

 the majority of cases old plants of different species look so much 

 alike that it is mere guessing to say anything about them. The 

 first thing to rememlDer is that young, unexpanded plants must 

 be examined as well as mature ones. Next a careful description 

 must be made, ivith special reference to the difference in the color 

 of the gills in the young and old plants. Then a similar compari- 

 son of the color of pileus and stem ; and then a search for an an- 

 nulus or universal veil, and its character. Finally, a careful test 

 of the pileus and stem for gluten or viscidity. (One must remem- 

 ber that old. dry plants may lose this character.) These points 

 are absolutely essential. In addition to the above, the following 

 characters are often useful : the shape of the pileus : the size of the 

 parts ; the smoothness of the surface of pileus and stem ; the 

 character of the edge of the gills ; the nature of the bulbous base 

 of the stem ; the appearance of the flesh. In fact, the notes can- 



