﻿The three forms of this species all occur on No. 5165. 

 The secidial form is the same as A. monoicum Peck, 

 and A. drabce T. & E.. and as the specific name aberrant 

 has priority in publication, it must stand. An examina- 

 tion of the several forms on diffent hosts from nine local- 

 ities show the following characters: 



Piiccinia aberrafisl'eck.* I. Hypophyllous; spots none; 

 pseudosporidia often covering the entire lower surface o:i 

 the leaf, long cylindrical, lacerate at the top. bright yellow : 

 aecidial spores subglobose, smooth, yellow, epispore thick, 

 smooth, 20-28 m. II. In the same sori with the teleu- 

 tospores; globose, epispore thin, smooth, 28-33 m - ^^ 

 Usually hypophyllous, but w r ith occasional sori on the 

 upper surface; spots none; sori small, round, sometimes 

 confluent, reddish-brown; teleutospores light colored, 

 oblong, or oblong-clavate, obtuse or round-pointed, much 

 thickened at the apex, constricted, smooth, lower cell 

 very thin-walled, 40-50x20-25 m. Pedicel hyaline, about 

 as long as the spore, quite fragile. 



This occurs on Arabis, Draba and Smelowskia. 



Paccinia g/obos/pes Peck. 



No. 5193. May 8, Le Verkin, Utah, 3000° alt. 



II. III. 



On Lycim 



n Andersom. 





In these s 



pecimens the sori oc 



cur on both the 



and leaves, ; 



and both II and III ; 



ire found in th< 



sori. The 



uredo- spores do not 



appear to hav 



collected pr< 



-viouslv, and are des 



cribed as follow 



In the same 



sori with III. Spores 



i oval or obovat 



spore rather 



thick, sharply echin 



ulate toward th 



