172 Illinois State Laboratory of Natural History. 



circece, Pers.; P. aster is, Duby; of the second none in the 

 list known; of the third: P. pruni-spinosce, Pers.; P. scirpi. 

 DC.; P. mqydis, Cda.; of the fourth: P. aculeata, Schw.; of the 

 fifth, first division: P. tanaceti, DC.; P. flosculosorum, P. 

 menthce, Pers., second division: P. caricis (Schum.); P. grami- 

 nis, Pers. 



P. anemones-virginianse, Schw. 



III. Spots dark brown; sori hypophyllous, prominent, 

 small, but commonly in dense, wart-like clusters, dark-brown : 

 spores linear-oblong, obtuse, slightly constricted, light-brown 

 below, darker above, the upper cell the shorter, and with the 

 epispore thickened at the apex, 12-15 by 35-55 p: pedicels very 

 short, colored. 



Spots none ; sori scattered, rather large, so compact that they appear 

 solid, black ; spores at length easily breaking up. The sori are scattered 

 over the whole leaf, and at first lutescent, and as if sunken. Schweinitz 

 N. Am. Fungi, No. 2937, p. 296. 



On leaves of Anemone cylindrica: McHenry, Aug. 23, 1241, 

 Sept. 1, 1404; Cook, Sept. 5, 1441; LaSalle, Sept. 13, 1495. A. 

 Virginiana: Piatt, Aug. 17, 1115; Union, Aug. 17, 2519; Mc- 

 Henry, Aug. 27, 1335; McLean, Sept. 6, 5668; LaSalle, Sept. 

 12, 1471, Sept. 20, 1598; Lee, Sept. 21. 5797; JoDaviess, Sept. 

 16, 5953, Sept. 18, 5991, Sept. 20, 6037. 



The spores are light colored and fragile, when dry, much 

 shrunken. Only teleutoform known. 



Schweinitz first gave the name cited above (Syn. Fung. 

 Car. [1822] p. 46), and afterward (N. Am. Fungi [1834] p. 

 296) changed it to P. solida. 



P. ranunculi, Seymour. 



III. Amphigenous, but mostly epiphyllous. Sori irregu- 

 larly associated, often crowded but scarcely confluent, occupy- 

 ing large areas or the whole of the leaf surface, little elevated, 

 circular, powdery, surrounded by the upturned edges of the 

 epidermis, secidium-like, cinnamon -brown; teleutospores broad- 

 ly elliptical, usually little or not at all constricted at the sep- 

 tum, ends rounded, vertex more rarely furnished with a low, 



