156 British Uredinee and Ustilaginee. 
Puccinia pimpinelle, Link. Cooke, ‘“ Micro. Fungi,” 4th edit., 
Pp. 209. 
LExstccatt. 
Vize, “ Micro. Fungi Brit.,” 124, 425. 
On Pimpinella saxtfraga, Heracleum sphondylium, Anthriscus 
sylvestris, Myrrhis odorata. 
May to October. 
Puceinia apii. (Wallr.) 
Acidiospores—Spots rounded or irregular, yellow above, paler 
below, causing elongated yellow swellings on the stems. 
Pseudoperidia subcylindrical, with torn, white, everted edges. 
Spores subglobose, orange-yellow, finely echinulate, about 25. 
in diameter. 
Uredospores—Sori rather large, cinnamon-brown, pulverulent, 
round or elongate, scattered, sometimes circinating. Spores 
globose, oval, or subpyriform, pale brown, finely verrucose, 
30-40 X 20-30, 
Teleutospores—Sori rounded, elongated, or irregular, long covered 
by the epidermis, blackish brown. Spores oval or clavate, 
smooth, dark brown, scarcely constricted, apex not thickened, 
30-50 X 15-204. Pedicels hyaline, rather persistent, not very 
short. 
Synonyms. 
Uredo apii. Wallr., “Flor. Crypt. Germ.,” vol. ii. p. 203. 
Puccinia apit, Corda, “Icones,” vol. vi. p. 30, fig. 11. 
Cooke, “ Hdbk.,” p. 502; “ Micro. Fungi,” 4th edit., p. 208. 
Y6R3 
LExsiccatt. 
Cooke, i. goa. Vize, “ Fungi Brit.,” 54, 127 ; “ Micro. Fungi 
Brit,” 554. 
On Apium graveolens. 
May to September. 
BioLocy.—The aecidiospores occur at the latter part of May, and 
are by no means profuse, although the yellow spots on which they 
occur are very conspicuous. On May 27, 1888, I applied the ecidio- 
spores and uredospores freely to a plant of Prmpznella Saxtfraga in my 
