IDS 



PUCCINIA 



Distribution: Central and Eastern Europe, Crete, Cyprus, 



Asia M nmr Algeria. 



70. Puccinia Circaeae Pe 



rs. 



Puccinia Circaeae Pers. Disp. Meth. ]>. 39, pi. 3, f. 4. Cooke, Handb. 

 p. 507; Micr. Fung. p. 211. Plowr. Ured. p. 213. Sacc. Syll. 

 vii. 686. Sydow, Monogr. i. 4-2-2. Fischer, Ured. Sdiwfiz, p. 319, 

 f. 232. 



Teleutospore*. Sori hypophyllous, on sunken yellowish or 



purplish round spots, minute, pulvi- 

 nate, brown, then with a greyish 

 bloom, scattered or circinate and at 

 length confluent in a thick crust ; 

 spores generally fusoid, rounded or 

 conically attenuated above and much 

 thickened (up to 1 2 /a), gently constric- 

 ted, attenuated downwards, smooth, 

 yellowish-brown or brown, 25 — 40 x 

 9 — 13/a; pedicels hyaline, persistent, 



Fig. 14(). P. Circaeae. 

 Teleutospores. 



about as long as the spore. 



On Circaea alpina, 0. lutetiana. Rather common. August — 

 October. (Fig. 146.) 



The sori of this species present two different forms : the first-formed 

 are roundish, clear-brown, solitary or circinate and confluent ; the later- 

 formed, which appear round the others or on the stem and on the nerves 

 of the leaves, are darker-brown and never greyish. All the spores are of 

 the same shape, but the paler ones can germinate at once, in the sorus, 

 while the darker ones rest until the following spring, as in P. Veronicarum. 

 There is another Uredine on the same host, even occurring on the same 

 leaf : see Pucciniastmm, Circaeae. 



Distribution : Central and Northern Europe, North 

 America, East Indies. 



71. Puccinia pulverulenta Grev. 



jEcidium Epilobii DC. Flor. fr. ii. 238. Cooke, Handb. p. 536 ; Mier. 



Fung. p. 195. 

 Uredo vagans var. Epilobii-tetragoni DC. Flor. fr. ii. 228. 

 Trichobasis Epilobii Berk. ; Cooke, Micr. Fung. p. 226. 



