150 British Uvedinee and Ustilaginee. 
Synonyms. 
Ecidium lapsane. Schultz, “ Prod. Flor. Starg.,” p. 454. 
Puccinia lapsane, Fckl.  Schrot., “Krypt. Flor. Schl.,” 
p. 318. Cooke, ‘‘ Micro. Fungi,” 4th edit., p. 207. 
cidium lapsane, Purton. Cooke, ‘“ Hdbk.,” p. 543; 
“ Micro. Fungi,” 4th edit., p. 198. 
Aicidium prenanthis, Pers. Cooke, “ Hdbk.,” p. 542; ‘ Micro. 
Fungi,” 4th edit., p. 198. 
Trichobasis lapsane, Fckl. Cooke, “Micro. Fungi,” 4th 
edit., p. 224. 
Exsiccati. 
Cooke, i. 13; ii. 91, 92. Vize, “ Micro. Fungi,” 162, 169. 
On Lapsana communis, Crepis paludosa. 
Aicidiospores, March to April; uredospores, April to June ; 
teleutospores, June to August. 
BIOLOGY.—This species is said by Schréter to occur on Crepzs 
paludosa. It is certainly distinct from Puccinia variabil’s and taraxact 
on Taraxacum, as neither the zcidiospores, uredospores, nor teleuto- 
spores of P. /afsan@, when applied to Taraxacum in duplicated ex- 
periments made in 1885, had any effect (Exp. 481, 497, 499, 500), 
although they readily enough infected plants of Lapsana communis. 
The species which occurs so frequently on the Composite is without 
zecidiospores. 
Puccinia variabilis. (Grev.) 
cidiospores—Spots very small, purple, scattered over the under 
surface of the leaves, from 2 to 5 mm. across. Pseudoperidia 
often single, cup-shaped, with torn whitish edges. Spores sub- 
globose or oval, hyaline, with orange contents, echinulate, 
20-25 X 15-20, 
Uredospores \ Sori small, round or elongate, dark brown, soon 
eee naked, containing both spore-forms. 
Uredospores scanty, subglobose, often irregular, brown, echinulate, 
20-25m in diameter. Teleutospores oval, oblong, often sub- 
globose, frequently distorted in various ways, -constriction 
almost none, dark brown, finely verrucose, 28-30 x 18-20), 
Pedicels hyaline, deciduous, of variable length. 
