Chrysomyxa. 2 5 



or') 



HEMICHRYSOMYXA. Winter. 



Having only uredospores and teleutospores, whicli occur on the same host- 

 plant. 



Chrysomyxa pyrolse. (D. C.) 



Uredospores — Sori hypophyllous, scattered, generally covering the 



under surface of the leaves, roundish, pulverulent, yellow. 



Spores ovate or elliptical, often angular, coarsely verrucose, 



yellowish orange, 20-23 x 15-22/x. 



Teleutospores — Sori orange, then red, flat, waxy. Spores, 1 10-120 



X 8-10/*. 



Synonytns. 



Schrot., loc. cit, 372. Winter, loc. cit., p. 250. 



JEcidium pyrolce. D. C, " Flore frang.," vol. vi. p. 99. 



Uredo pyrolcs. Grev., " Flor. Edin.," p. 440. Johnst., " Flor. 

 Berw.," vol. ii. p. 198. 



Trichobasis pyrolcs. Berk., " Outl.," p. 332. Cooke, " Hdbk.," 

 p. 529; "Micro. Fungi," 4th edit., p. 223, in part. 



Exsiccati. 

 Vize, "Micro. Fungi Biit.," 52 



On Pyrola rotundifolia. 



Chrysomyxa empetri. (Pers.) 



Uredospores — Sori orange, roundish or elongate, at first covered by 

 the epidermis, then surrounded by it. Spores ovate, elliptical, 

 or pyriform, verrucose, orange-yellow, 25-30 X 17-25/x. 



Synonyms. 



Schrot., loc. cit., p. 372. 



Uredo empetri, Pers. Moug. and Nest., Exs., No. 391. Cooke, 

 Seem. Jour. Bot., vol. iv. p. 99 ; " Hdbk.," p. 5273 " Micro. Fungi," 

 4lh edit., p. 216. 



On Empetrum nigrum. 

 May to September. 



