4 
86 \UROMYCES 
The species are i Se agree to the families to which 
the hosts belong: see Puccini This genus is often considered 
the most highly (at least the latest) evolved of the Uredinales ; 
but rather it forms a heterogeneous group, the species of which 
have arisen at different times from various species of Puccima. 
1. Uromyces Valeriane Fckl. 
Uredo Valerianae Schum. Pl. Sal. ii. 233. 
Beidium Valerianearum Duby, Bot. Gall. ii. 908. Cooke, Handb. 
p. 540; Micr. Fung. p. 196. 
Lecythea Valerianae Berk. ; Cooke, Handb. p. 532; Micr. Fung. p. 222. 
Uromyces Valerianae Fckl, Symb. Mye. p. 63. Plowr. Ured. p. 128. 
Sace, Syll. vii. 536. Sydow, Monogr. ii. 19. Fischer, Ured. 
‘Schweiz, p. 54, f. 41. 
Spermogones. Epiphyllous, in small clusters, honey- 
coloured, turning black. 
4icidiospores. Kcidia hypophyllous, and often on the 
nerves, petioles and stalks, seated on pale thickened spots, 
densely aggregated or circinate, cup-shaped, whitish-yellow ; 
margin revolute and torn; spores covered with minute crowded 
warts, yellow, 18 —25 x 16—20 mu. 
Uredospores. Sori amphigenous, usually on indefinite 
yellow spots, scattered or aggregated here and there, minute, 
punctiform, pulverulent, brown; spores globose to broadly 
ellipsoid, verrucose-echinulate, yellowish-brown or brown, 21— 
28 w; epispore 24—3 wu thick, with two or three germ-pores. 
Teleutospores. Sori similar, but longer covered by the 
epidermis, dark-brown; spores ellip- 
soid or ovate, with a flat subhyaline 
papilla at the summit, smooth, pale 
clear-brown 20—30 x 18—21 y; epi- 
spore thin, scarcely thickened above ; 
pedicels short, thin, hyaline, rather 
Fig. 38. U.Valerianae. Teleu- deciduous. 
tospores and uredospore (the . . eee a 
latter viewed dry) on V. offici- On Valeriana dioica, V. offict- 
sae nalis, Adcidia in May and June; 
uredospores from June, teleutospores from July to October. 
Common. (Fig. 38.) 
