222 PUCCINIA 



!'2. Puccinia Behenis Otth. 



j/Ecidium Behenis 1>('. Flor. fr. vi. HI p.p. 



Puccinia Behenis Otth, Mitth. Naturforsch. Gesell. Bern l s 7<i , p. 89. 



Fischer, Qred. Schweiz, p. L36, f. 103. 

 /'. Silenes SchrSt. in Winter, Pike, p. 215 L884 . Cooke, Micr. Fung. 



p. 211. Plowr. LTred. p. 147. Sacc. Syll. vii. 605. Sydow, 



Monogr. i. 559. 



Sperpin;im,/s. In little clusters, honey-coloured. 



^Eciiliospures. /Ecidia hypnphylluus, mi pallid-yellow spots, 



Fig. 170. P. Behenis. a, Teleutospore and mesospore, on Silene infiata; 



h, uredospore and teleutospore, on Lychnis diurna. 



in orbicular clusters, minute, shortly cylindrical, with whitish 

 torn margin ; spores delicately verruculose, orange, 17 — 26 x 

 14 — 20 fi, or 15 fi diam. 



Uredospores. Sori amphigenous, scattered or circinatp, 

 sometimes confluent, on paler spots, minute, cinnamon-brown : 

 spores subglobose to ellipsoid, echinulate, pale-brown, 20 — 26 x 

 17 — 22 /a, with three or four germ-pores. 



Teleutospores. Sori similar, but black-brown : spores oblong 

 to ellipsoid, rounded at both ends, faintly constricted, surmounted 

 by a small pale apical papilla, smooth, chestnut-brown. 25 — 40 x 

 16 — 26 jM ; pedicels hyaline, short, deciduous. 



On Silene infiata (=S. latifolia, S. Cucubalus) and Lychnis 

 diurna (dioica). Not common. Uredo- and teleutospores, 

 July— October. (Fig. 170.) 



The description of the spermogones and rccidia is partly after Schroter, 

 Sydow, and Fischer. The distinction of the secidium of this species from 

 that belonging to Uromyces Behenis is as follows : — The former has sper- 

 mogones and uredospores, which accompany and follow it, but it is never 

 accompanied by teleutospores. The early secidia of the Uromyces are 

 situated on purplish spots which show above, the later ones are usually 



