144 



PUCCINI A 



L8. Puccinia Cnici-oleracei lVrs. 



Puccinia Cnici-oleracei Pers. in Desm. Cat. dea PI. omis., p. 24. 



Sydow, Monogr. i. 58, pi. 3, f. 17. Fischer, Ured. Schweiz, 



p. 292, 594, f. 213. 

 /'. ( 'ardui Plowr. Ored. p. 216. 



Teleutospores. Sori hypophyllous, on discoloured roundish 

 spots, minute, circinate, l»ut mostly confluent in large patches 

 as much as 5 mm. diam. which remain for a long time covered 

 by the epidermis, compact, blackish-brown; spores clavate or 

 subfusiform, rounded or rarely somewhal conical above, very 



Fig. 96. P. Cnici-oleracei. Teleutospores, on C. lanceolatum. 



much thickened (5 — 10 /x), constricted, attenuated below, 

 smooth, yellowish-brown, 38 — 56 x 14 — 21 /u,; pedicels yellowish- 

 hyaline, thick, persistent, as much as 50 //. long. 



On Cirsium lanceolatum, Carduus crispus (?). August — 

 October. Not uncommon on the former. (Fig. 96.) 



This is one of the species in which the upper cell separates from the 

 lower one. It is doubtful if Puccinia Syngciiesiarum (Cooke, Handbook, 

 p. 499 ; Micr. Fung. p. 206) belongs entirely here, as the figure in the 

 latter work (pi. 4, f. 64) does not give the true form of the teleutospore ; 

 but the majority of the specimens issued by him under that name are this 

 species. It is very questionable if this species occurs on Carduus crispus, 

 on which it is recorded by Plowright. 



Distribution : in a few places in Europe. 



