246 ‘ PUCCINIA 
hetercecious and autecious species respectively, though this is certainly 
not always true. 
The only British species of Carex which have been proved by cultures 
to be connected with this ecidium are C. caryophyllea (pruecox) and 
C. urenaria, but it is supposed to grow also on a large number of other 
species. The matter is, however, complicated by the fact that there are 
two other Puceiniae (P. arenarticola and P. Schoeleriana) which are very 
closely allied and differ chiefly in having their ecidia on other hosts. 
DiIsTRIBUTION: Europe and Siberia. 
112. Puccinia Schoeleriana Plowr. et Magn. 
Heidium Jacobaeae Grev. Flor. Edin. p. 445. 
44. Compositarum var. Jacobaeae; Cooke, Handb. p. 542; Micr. 
Fung. p. 198 p.p. 
i. Senecionis Fischer, Ured. Schweiz, p. 534, f. 335 (7). 
Puccinia Schoeleriana P. et M. Quart. J. Micr. Sci. xxv. (new ser.) 
pp. 167, 170. Phill. et Plowr. Grevillea, xiii. 54. Plowr. Journ. 
Linn. Soc. xxiv. 91; Ured. p. 171. Sace. Syll. vii. 627. Sydow, 
Monogr. i. 659. . 
Spermogones. Epiphyllous, orange. 
Leidiospores. AKcidia hypophy!l- 
lous, clustered on roundish yellow or 
brownish spots as much as ] cm. diam., 
cup-shaped, with a torn white reflexed 
margin; spores delicately echinulate, 
orange, 15—21 p. 
Uredospores. Sori generally hypo- 
phyllous, on yellowish spots, scattered, 
minute, roundish or oblong, pulveru- 
lent, surrounded by the cleft epidermis, 
pale-brown; spores globose to ovate, 
echinulate, yellow-brown, 24—30 x 16 
—25 p. 
Telentospores. Sori hypophyllous, 
scattered or aggregated, 4—14 mm. 
long, oblong, surrounded by the torn 
epidermis, pulvinate, black; spores 
Fig. 190. P. Schoeleriuna. Clavate or fusoid, rounded or conically 
Teleutospores, from one of attenuated above and much thickened 
Plowright’s cultures-on C. 
arenaria, (up to 14), gently constricted, tapering 
