1 96 



PUCCINI. \ 



Semadeni showed that the spores from .1. aUvestris infected M. inhtrnta 

 readily (Centralbl. f. I'.akt. pt. 2, xiii. 217—9), but whether the form on 

 C. /'nullum belongs to the same species (or is a biological race of it) seems 

 at present to he undetermined. 



Distribution: Central and Northern Europe, Siberia. 



68. Puccinia Conii Fckl. 



Uredo Conii Strauss in Wetter. Ann. ii. 96. 



Trichobasis Conii Cooke, Micr. Fung. p. 225. 



T. Umbellatarum Lev. ; Cooke, Micr. Fung. p. 22~> p.p. 



Puccinia Conii Fckl. Symb. Myc. p. 53. Cooke, Handb. p. 209 p.p. 



Sacc. Syll. xiv. 30-2. Sydow, Monogr. i. 375. Fischer, I'red. 



Schweiz, p. 114, f. 87. 

 J', bulla ria Link ; Cooke, Handb. p. 503 p.p. 

 P. bullata Wint. ; Plowr. Ured. p. 183 p.p. 



Uredospores. Sori hypophyllous, occasionally on the peti< >les, 



scattered, minute, rarely confluent, pul- 

 verulent, cinnamon ; spores ellipsoid to 

 obovate, thickened (up to 7 /a) above 

 and echinulate in the upper part only, 

 pale-brownish, 24—36 x 17 — 26 /z, with 

 three germ-pores. 



Teleutospores. Sori similar, but 

 blackish-brown, on the stems and petioles 

 often larger and long covered by the 

 grey epidermis ; spores ovate or ovate- 

 oblong or even clavate, rounded at both 

 ends or attenuated below, not thickened at the apex but with a 

 small papilla or pore-cap, hardly constricted, nearly or quite 

 smooth, pale-brown, 30 — 48 x 20 — 28 /x; pedicels hyaline, short, 

 deciduous. 



On Conium maculatum. Not common ; England, Wales, 

 Ireland (Clare Island). August, September. (Fig. 144.) 



Distinguished by the uredospores, which are echinulate only in the 

 upper half ; the spines gradually diminish in size downwards and the lower 

 half is quite smooth. The teleutospores which I have examined are quite 

 smooth when empty, even under the highest power, but the protoplasm is 

 very granular and presents a misleading effect at first sight. 



Fig. 114. P. Conii. Te- 

 leutospore and uredospore. 



