196 PUCCINIA 
Semadeni showed that the spores from A. s¢lvestris infected M. odorata 
readily (Centralbl. f. Bakt. pt. 2, xiii. 217—9), but whether the form on 
C. temulum belongs to the same species (or is a biological race of it) seems 
at present to be undetermined. 
DisTRIBUTION: Central and Northern Europe, Siberia. 
68. Puccinia Conii Fckl. 
Credo Cont Strauss in Wetter. Ann. ii. 96. 
Trichobasis Conti Cooke, Micr. Fung. p. 225. 
T. Umbellatarum Lévy. ; Cooke, Micr. Fung. p. 225 p.p. 
Puccinia Conti Fckl. Symb. Myc. p. 538. Cooke, Handb. p. 209 p.p. 
Sacc. Syll. xiv. 302. Sydow, Monogr. i. 375. Fischer, Ured. 
Schweiz, p. 114, fi 87. 
P. bullaria Link ; Cooke, Handb. p. 503 p.p. 
P. bullata Wint. ; Plowr. Ured. p. 183 p.p. 
Uredospores. Sori hypophyllous, occasionally on the petioles, 
scattered, minute, rarely confluent, pul- 
verulent, cinnamon ; spores ellipsoid to 
obovate, thickened (up to 7) above 
and echinulate in the upper part only, 
pale-brownish, 2436 x 17—26 w, with 
three germ-pores. 
Teleutospores. Sori similar, but 
blackish-brown, on the stems and petioles 
ae eee often larger and long covered by the 
leutospore and uredospore. gYey “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 yw; 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. 
