ON CRASSULACE/E 



211 



Teleutospores. Sori araphigenous or on the stems, but 

 generally hypophyllous, scattered 

 or crowded and confluent, minute, 

 roundish, surrounded by the torn 

 epidermis, pulverulent, dark- 

 brown ; spores broadly ellipsoid, 

 depressed, rounded at both ends, 

 scarcely thickened above, not 

 constricted, smooth, dark chest- 

 nut-brown, 20—35 x 17—24 p : 



pedicels hyaline, about as long as the spore ; spores occasionally 

 three-celled, like Triphragmium. 



On Seduvt Rhodiola (roseum). Very rare. Glen Callater, 

 July, 1844 (W. Gardiner). (Fig. 157.) 



Distribution : Norway. 



Fig. 157. P. Rhodiolae. Teleuto- 

 spores, from Glen Callater (ex 

 herb. Berkeley). 



81. Puccinia Umbilici Guep. 



Puccinia Umbilici Guep. in Duby, Bot. Gall. ii. 890. Cooke, Handb. 

 p. 505 ; Micr. Fung. p. 211, pi. 4, f. 80—1. Plowr. Ured. p. 204. 

 Sacc. Syll. vii. 700. Sydow, Monogr. i. 492, f. 403. 



Teleutospores. Sori amphigenous or on the petioles, on 

 yellowish spots, minute, roundish, 

 usually circinate, at length confluent 

 and forming large orbicular clusters up 

 to 1 cm. diain., at first compact, then 

 pulverulent, dark reddish-brown; spores 

 broadly ellipsoid or subglobose, rounded 

 at both ends, not thickened above but 

 surmounted by a minute subhyaline 

 apiculus or pore-cap, not constricted, smooth, bright chestnut- 

 brown, 28 — 32 x 18 — 26 [x, the cells often depressed {i.e. broader 

 than long) and frequently oblique ; pedicels short, hyaline. 



On Cotyledon Umbilicus. Locally common. May and June ; 

 in mild localities it can be found even as early as January. 

 (Fig. 158.) 



Fig. 158. P. Umbilici. 

 Teleutospores. 



Distribution : France, Belgium, Portugal. 



14—2 



