65 



64. Peronospora violae de By., Syll. VII ''^\ Fisch. IV^^ Viol- 

 skimmel (R 04 a '»). 



May— October, rare. 



Viola tricolor arvensis. J. Viborg!; F. Dalum (Jak. Lge). 



65. Peronospora lini Schroet, Fisch. IV", Syn: Per. lini Ellis &. 

 Kellerm. Syll. IX ^", Harskimmel (R 04 a '^). 



The conidiophora of this species does not — as is the case with 

 the other species of Peronospora — form thick clusters, but they 

 appear somewhat isolated on the stalks and the leaves; therefore the 

 fungus is very inconspicuous and — as far as I can ascertain — it has 

 only been noticed twice in Evrope (by Schroeter near Rastatt in Ba- 

 den (76 "") and by me) and once in Kansas, U. S. A. 



Linum catharticum. F. Ringe (! ^/s 97). 



66. Peronospora conglomerata Fuck. Syll. VII "^ Fisch. IV "". 

 Storkenaebskimmel (R 04 a ^'). 



Rostrup (85 a) has noticed that the affected plants get longer petioles 

 and infundibuliformed leaves. April— June. 



Geranium pusillum. F. Skaarup (^/e 83 Exc. Thiim. Myc. no 2217); S. Lyng- 

 by ! . Geranium columbinum. F. Holmdrup. Geranium molle. J. Viborg ! ; F. 

 Brudager C^/s 73) ; S. Dronninggaard (F. K. R.). Erodium cicutarium (Per. erodii 

 Fuckel). J. Hald by Viborg!. 



67. Peronospora chrysosplenii Fuck., Syll. VII ''^^, Fisch. IV "*'', 

 Milturtskimmel (R 04 a '«). 



April— May. 



Chrysosplenium alternifolium. J. Krabbesholm Skov!, Lee Skov!; F. Kling- 

 strup (1/5 70); B. Bobbeaa (Exc. ^^k 11). 



68. Peronospora sparsa Berk., Syll. VII =^^ Fisch. IV *^\ Rosens 

 Bladskimmel (R 96 c), Rosenskimmel (R 04 a '% Lit: R 84 i, 98 g, 

 00 h, 02 k. 



It is only found on cultivated roses in hot-houses, which fact is 

 quite in accordance with the supposition that it originates from India 

 (R 88 n *^) ; Rostrup has described the oospores (02 a ^"i) which he 

 found in May 1900 and which have apparently been found nowhere- 

 else before ; they are 30—34 -i^ in diameter, yellow and surrounded by 

 a brown, stratified and folded wall 6—7 M thick. The fungus which 

 has been known in England since 1862 and found in Germany 1876 

 (Wittmack 77) was first noticed in Denmark in May 1884 (R 94 h). 



Rosa indica culta. J. Aalborg, Ringkabing, Hobro, Horsens; F. Odense 

 (^/e 84); S. Saborg, Vanlase etc. 



69. Peronospora rubi Rabenh., Syll. VII ^^^, Brombaerskimmel (R 

 04 a ^'). 



J. Lind: Danish fungi. 5 



