53 



Subfam. H. MELAMPSOREAE. 



X. MELAMPSORA Cast. Pl. Mars. p. 206. 



1. M. populnea (Pers.) Karst. 



II. Sori ainphigeni, sparsi, laete flavi, rotundati, nii- 

 nuti, pseudosporangio irregulariter rupto et lacerato ac pcr- 

 sistente. Stylosporae obovoideo-ellipsoideo-vel angulato-sphac- 

 roideae, echinatae, longit. 20 — 24 uiuiiii., crassit. 15 — 18 

 mmm. Paraphyses apice ovoideo-incrassatae, hyalinae. 



III. Sori amphigeni, vulgo congesti, subrotundi aut 

 angulato-confluentes, convexo-plani, primitus luteo-fulvi vel 

 gilvo-rufi, demum nigrescentes. Teleutosporae prismaticae, 

 arctissime coadunatae, 5 — 6-gonae, membrana levi, in ver- 

 tice non incrassata, longit. circiter 55 mmm., crassit. circi- 

 ter 10 mmm. 



Syn. n. Vredo ovata StrauSS. in Wctt. Ann. p. 92. Vr_ 

 popttlina AucTT. pr. p. 



in. Sclerotium populneum Pers. Syn. Fung. p. 125, Scl. 

 populinum Fr, Syst. rayc. III, p. 262 pr. p. Melampsora Tremu- 

 lae TuL. in Anu. sc. nat. 4, tom. 11, 1854, p, 95. 



Bxsicc. V. Thum. Fuug. austr. 38 (11). Karst. Fung. Fenn. 



290 (m). 



Hab. In foliis Populi tremulae freqventer vigens, 



* M. populina Tul. in Ann. sc. nat. t. II, 1854, p. 95. 



A typo soris uredineis, stylosporis majoribus (longit, 

 30—39 mmm,, crassit. 13—19 mmm,) teleutosporisqve mi- 

 noribus recedens. 



Exsicc. Karst. Fung. Fenn. 984 (II), 



Hab. In foliis PopuU pt/rafnidalis iu Mustiala. 



2. M, betulina (Fr,) Desm. Crypt. Franc. 1646. 



II, Sori hypophylli, rotundati, gregarii, nitide flavi vcl 

 subaurantii, pseudosporangio crasso, ostiolo angusto et qvasi 



