Heteropticcinia. i 7 r 



Synonym. 



Puccinia arcnariicola. Vlow.^/our. Linn. Soc. Bot , vol. xxiv. 

 p. 90. Vize, "Micro. Fungi Brit. " (188S), 549. 



^cidiospores on Ccntaurea nigra, L., May and June. 

 Uredospores, teleutospores, on Carex arenaria, L., July to May. 



On the seashore at Hemsby, Norfolk. 



Biology. — The above life-history was worked out by a series of 

 cultures (1885), by which it was proved that this species is distinct 

 from the other Puccinite on Carices, P. sclia:leriana and caricis, for 

 details of which see Linti. Soc. Jour. Boi., vol. xxiv. pp. 90-93. 



This may be Xh.& Puccinia tenuistipcs, Rost. (Schrot., " Krypt. Flor. 

 von Schlesien," vol. iii. p. 329) on C. muricata, which has its ^ecidio- 

 spores on Ccntaitrea jacea. 



Puccinia schoeleriana. Plow, and Mag. 



/Ecidiospores — Spots yellow, circular, mostly on the radical leaves, 

 Pseudoperidia hypophyllous, with reflected torn edges, spermo- 

 gonia on the upper surface of the leaves. Spores rounded, 

 yellow, finely echinulate, 15-20/x in diameter. 



Uredospores — Spots yellow, pallid. Sod elongated or subrotund, sur- 

 rounded by the torn epidermis, brown, generally hypophyllous. 

 Spores subglobose or ovate, yellowish brown, 25-30 x 14-20/A. 



TeleiUospores — Sori erumpent, oblong or elongate, large, prominent, 

 persistent, black, hypophyllous, naked. Spores slightly con- 

 stricted, upper cell subglobose, ovate or attenuated upwards, 

 apex much thickened, rounded or pointed, lower cell cunei- 

 form, often paler than the upper, rich brown, smooth, 60- 

 80 X 15-20/A. Pedicels long, firm. 



Synonyms. 



Puccinia schoeleriana. Plow and Mag., Quart. Jour, Micro. 

 ■Science, vol. xxv., new series, p. 170. 



JEcidium jacobcE(z. Grev., "Flor. Edin.," p. 445. 



Aicidium composiiarum., Mart. Cooke, " Hdbk.," p. 542 ; 

 "Micro. Fungi," 4th edit., p. 198. 



Exsiccati. 

 Vize, "Micro. Fungi," 156; "Micro. Fungi Brit./' 434. 



