376 URKDINEAE. 



Klebahn and Fischer^ assert that several other species of 

 Co/cospon'iim ]:)roduce their aecidium-stage on Finus sylvestru. 



C. euphrasiae (Schum.) (Britain). Uredospores produced from 

 reddish-yellow, teleutospores from orange-red patches during 

 July and August on various Ekinanthideae (Bhinanthus major, 

 B. minor, Bartsia Odontites, and Euphrasia officinalis). The 

 spores from Bhinanthus germinate on needles of Finns sylvestris 

 and produce an aecidium called Fcridermium Stahlii Kiel). 

 The aecidiospores of F. Stahlii average 26m in length, 19-5// 

 in breadth, and are round or shortly oval, with a coat and 

 markings finer than those of F. ohlongiqiorivm. The uredo- 

 spores average 22yu x 15"5/x; they are irregular and somewhat 

 angular, with a thin finely marked coat. 



C. melampyri (Eeb.) (Britain). Uredospores on Melam- 

 pyrnm (certainly on M. pratcnse). The aecidia — Fcridcrmiuni 

 Soravcri Kleb. — follow after a year on needles of Finns sylvestris. 

 The spermogonial pycnidia alone are developed in the summer 

 of infection. 



C. tussilaginis (Pers.) (Britain). Tliis Coleosporinni is found 

 all summer on the underside of leaves of Tnssilago farfara, 

 the uredospores forming yellow patches, the teleutospores darker- 

 coloured ones. Aecidia are produced on needles of Finns 

 sylvestris, and are known as Ferielermium Flov:rightii. Pycnidia 

 and aecidia are formed in the summer following infection. 

 The aecidiospores average 25'5/U x 19// and are shortly oval 

 or round, with coats and markings more delicate than those 

 of F. Stahlii. The uredospores average 26/« x 1 9/x and are 

 roundish oval with somewhat firmer and thicker coats than 

 those of C. eaiphrasiae. 



Klebahn's infections of Fctasites with aecidiospores from Finns 

 gave no result. 



C. inulae Kunz. Spores of this obtained by Fischer - from 

 Inula Vaillantii and /. ITelenium produced Feriderminm Klehahui 

 Fisch. on needles of Finus sylvestris. 



C. sonchi (Pers.) (Britain and U.S. America). Klebahn 

 considers this as a provisional species including a number of 

 imperfectly investigated forms whose uredo- and teleutospores 



^Berirhted. (fmfsc/i. ho/aii. Ges., 1S94; Znt.schnft /. Pflmiztnh-anhheiten, 1S94, 

 and 1895, p. 73. 



-Botan. CentralhlaU, lix., 1894, p. 1. 



