l:;s 



PUCCINI A 



On Carlinavulgaris. .Inly — October. Not common. (Fig. 89. ) 



Distinguished from /'. Cirsii, which it much resembles, by the larger 

 uredospores, with very delicate hardly perceptible spines, and by the 

 slightly smaller teleutospores which are more frequently narrowed below. 

 But no cultures seem to have been made to prove their distinctness. 



Distribution : Central and Northern Europe. 



1 1 . Puccinia Bardanae Corda, 



I'lic-iitiii llicrurii Plowr. Ured. p. 184 p.p. 



/'. H< i rib tine Corda, Icones, iv. 17. Sydow, Monogr. i. 113. Fischer,. 

 Ured. Schweiz, p. 221, f. 173. 



Spermogones. Similar to those of P. Cirsii. 

 Uredospores. Sori of two kinds ; primary epiphyllous, on- 

 discoloured rounded or irregular spots, 

 in concentric rings round the spermo- 

 gones, sometimes confluent, 1 — 5 mm. 

 broad, flat, surrounded by the cleft 

 epidermis, pulverulent, cinnamon ; 

 secondary amphigenous, without spots, 

 about ^ — 1 mm. diam., scattered or 

 gregarious; spores globose to ellipsoid, 

 echinulate, pale-brown, 26 — 30 x 22 — 

 '27 fx, with three (rarely four) germ- 

 pores. 



Teleutospores. Sori amphigenous, generally hypophyllous, 

 without spots, scattered or in places densely gregarious, 

 \ — 1 mm. diam., rounded, pulverulent, black-brown ; spores 

 ellipsoid, rounded at both ends, not thickened, gently constricted, 

 delicately verruculose, dark-brown, 30—42 x 22 — 27 //, ; pedicels 

 hyaline, short. 



On Arctium Lappa. September, October. A doubtful 

 native ; I have seen no British specimens. Description after 

 Sydow. (Fig. 90.) 



Distinguished from P. Cirsii by its larger teleutospores and by its two 

 kinds of uredo-sori. Jacky demonstrated the distinctness of the two 

 species by experimental cultures (Centralbl. f. Bakt. 2. ix. 796) ; also that 

 P. Bardanae could not be transferred to Taraxacum. 



Distribution : Europe only. 



Fig. 90. P. Bardanae. Te- 

 leutospores, on A. Lappa 

 (Austria). 



