No. 382.] PUCCINIA WINDSORIA 781 
If the variations found in these specimens were to become 
permanent, we should have representatives of at least four 
genera in this single species, or we should have to discard or 
modify our present notions as to the relationship and classifica- 
tion of Uredineze. It may be that the morphology of the teleu- 
tospore is not to be considered of as much importance as we 
have supposed. One-celled teleutospores (Fig. 7) are common, 
and if these should eventually predominate the species must be 
referred to Uromyces, or Melampsora, instead of Puccinia. If 
such forms as Figs. 1, 2, 12, and 19 become most common, 
we must refer the species to Triphragmium. The forms shown 
in Figs. 16, 18, and 20 may be allied to the latter, with an 
additional septum. If spores like Figs. 4, 5, 9, II, 14, 15, 
and 17 were most numerous, we could not avoid referring the 
species to the genus Phragmidium. Yet all these forms have 
been found in this species, often on the same leaf, and nearly 
all have occasionally been found in the same sorus. In my 
specimens nearly every leaf contained a number of several- 
celled spores, but I found them more numerous on the leaves 
which lay near the ground, those which stood free in the air 
bearing fewer abnormal spores. . 
The normal spores agree well with Burrill’s description in 
his “ Parasitic Fungi of Illinois,” } though more variable in 
size. I measured 58 spores and found them to be 16.8 to 24 p 
by 26.4 to 48 mw, averaging 20.8 by 34.3 m while Burrill’s 
measurements are 18 to-21 by 27 to 30 p. 
I have examined herbarium specimens of this species from 
Iowa, Illinois, and Nebraska (Lincoln, 1889), but found no 
spores with more than three cells. 
UNIVERSITY OF NEBRASKA. 
l Parasitic Fungi of Illinois, Pt. i, Uredinex, by T. J. Burrill, in Budd. Z. 
State Lab. Nat. Hist., 1885. 
