S86. 
PHYTOLOGY AND THERAPEUTICS. 183 
Rare and usually not destructive. This species has been labeled by vari- 
ous collectors, and distributed not only under the name here given 
but also under those of P. grindelixw, Peck, and P. tanaceti, DC. 
(Fungi Col. No. 754). It seems the most appropriate, however, that the 
form on Aplopappus should be referred to P. variolans, and on the au- 
thority of Prof. J. C. Arthur it is thus given. 
Puccinia vernoniz, Schw. II, III. 
1834: Syn. N. Am. Fungi, No. 2926. 
On Vernonia baldwinii, Rooks county, Sept. 1893, III, July 1894, II; 
Manhattan, July 1883, W. A. Kellerman, Sept. 1891, C. H. Thompson ; 
Sedgwick county, Oct. 1891, M. A. Carleton; Barber county, summer 
of 1892, Hitchcock; Saline county, July 1893, M. A. Carleton. 
Common in many parts of the state and sometimes quite destructive to its 
host. After a careful consideration of the matter from the abundant 
material at hand, I have decided to discard Professor Burrill’s varietal 
form (P. tanaceti, DC., var. vernoniae, [Schw.]), and restore the form 
on Vernonia to its former specific position. See also N. A. F. No. 3050 
and Fungi Col. Nos. 263 and 353. 
$7. Puccinia vexans, Farl. II, III. 
1883: Proc. Am. Acad. Arts & Sci. p. 82. 
On Bouteloua racemosa, Rooks county, Jan. 1893 and Oct. 1896; Man- 
hattan, Aug. 1892, C. H. Thompson; Pottawatomie county, Nov. 1893, 
M. A. Carleton. 
Common but not destructive. In its microscopic characters this species 
is peculiarly interesting on account of the wide divergence in the teleu- 
tospores, which range from the aculeate, thick, short-stalked unicelled 
form to that of the typical long-pediceled uniseptate spores. 
SS. Puccinia violz, (Schum.) DC. I, II, III. 
S89. 
1803: Flor. Saell. II, p. 224. 
On Viola cucullata, Rooks county, May 1888 and June 1894, I; Manhat- 
tan, May 1886, I, July 1886, II, III, W. A. Kellerman; Cloud county, 
April 1888, Chase county, May 1888, and Douglas county, May 1892, I, 
M. A. Carleton. 
On Viola delphinifolia, Manhattan, May 1888, Kellerman. 
On Viola pedatifida, Manhattan, June 1893, I, Douglas county, May 1892, 
M. A. Carleton; Sedgwick county, May 1892, A. S. Miller. 
On Viola tricolor (cult. pansy), Manhattan, May 1893, E. A. Popenoe. 
On Viola nuttallii, Rooks county, June 1888, I. 
This species is common every year, especially in I (A%cidium Viele! 
Schum.), which is often quite destructive. The II and III are very 
rare. I have never found either of these in the west half of the state, 
where the first stage is very abundant. 
Puccinia virgata, E. & E. III. 
1893: Proc. Phil. Acad. Nat. Sci. p. 154. 
On Panicum virgatum, Rooks county, Jan. 23, 1892—type (N. A. F. No. 
2888); Pawnee county, Oct. 1889, Kellerman and Swingle. 
This rare and interesting species is peculiar from the fact, which is not 
noted in the origina! description, that the teleutospores are so nearly 
sessile that they may be said to be non-pedicellate! The Rooks county 
specimens were found in abundance on one solitary tuft of grass about 
