ON COMPOSITE 139 
12, Puccinia tinctorie Magn. 
Puceinia Compositarum var. Serratulae Cooke, Exsice. no. 33. 
P. tinctoriae Magn. in Abhand. Nat. Gesell. Niirnberg, 1900, xiii. 37 ; 
Ber. deutsch. Bot. Gesell. 1893, pl. 21, f. 27—8. Sydow, Monogr. 
i. 150, f. 127, , 
Uredospores. Sori amphigenous, on inconspicuous pallid 
spots, scattered, minute, roundish, pulverulent, dark-cinnamon ; 
spores globose to ellipsoid, echinulate, brown, 24—40 x 19—26 u; 
epispore with two germ-pores towards the summit. 
Fig. 91. P. tinctoriae. Teleutospores and uredospore (from 
Cooke’s specimens). 
Teleutospores. Sori similar, but blackish; spores ellipsoid 
to oblong, rounded at both ends, not thickened above, hardly 
constricted, delicately verruculose, brown, 27—60 x 19—30 p; 
pedicels hyaline, up to 14 long; epispore thin. 
On leaves of Serratula tinctoria. Apparently very uncom- 
mon; Belton Wood, Highgate (M. C. Cooke). Teleutospores, 
July—September. (Fig. 91.) 
DistrisuTion: France, Sweden, Germany, Austria, Italy, 
Siberia. 
13. Puccinia Centauree DC. 
Puceinia Compositarum Sch.; Cooke, Handb. p. 499; Micr. Fung. 
p. 206 p.p. 
P. Centaureae DC. Flor. fr. vi. 595. Cooke, Micr. Fung. p. 207. 
Plowr. Ured. p. 186. Sydow, Monogr. i. 39. Fischer, Ured. 
Schweiz, p. 222, f. 1745. 
