59 



Sclerospora. 



38. Sclerospora graminlcola (Sacc.) Schroet. 89 ^^\ Syll. VII 2^^ 

 Fisch. IV *^^, Syn : Peronospora setariae Pass., Skaermaksskimmel (R 

 04 a"), Lit:RuhIand03. 



Setaria. viridis. F. Skaaruper (^^/t 83). • 



Plasmopara. 



39. Plasmopara pygmaea (Ung.) Schroet., Syll. VII ="", Fisch. IV'", 

 Syn: Peronospora pygmaea Unger, Anemoneskimmel (R 02 a ^'^ &. 

 04ai»). 



May-June. The mycelium is certainly perennial in the roots of the 

 plant (Stewart 10^=^). 



Anemone nemorosa, very common, for instance F. Vejstrup Aaskov (R 79 ^"3 ; 

 B. Almindingen (Exc. ''^/e 11). .Anemone nemorosa X ranunculoides. F. Vejstrup 

 Aaskov. Anemone ranunculoides. F. Vejstrup Aaskov (R 79 ^°), Skaarup ; S. Ham- 

 mer! (Exs. Sydow no 263); B. Almindingen (Exc. ''^/s 1911). Hepaiica triloba. 

 S. H0ve (Th. Leth). 



40. Plasmopara viticola (Berk 6^ Curt.) Berlese &. de Toni, Syll. 

 VII ^'', Fisch. IV *^^, Syn : Peronospora vitic. Caspary, Vinstokskimmel 

 (R 02a^?8). Lit: Anonym 83, Lind 09 c 6. 10. 



Although it has been known in Europe since 1878 and was found 

 in Norway 1892 (Wille 93) it was not found in Denmark until the 

 last year of Rostrup's life ; since then I have found it in four different 

 places, every time in rather great abundance occupying every leaf of 

 the affected vines. Each time it has disappeared again; it seems as if 

 it is unable to hibernate in this country. 



Vitis vinifera. J. Kolding!; F. Dalum (Jak. Lge); S. Landsgrav!; Falst. Nr. 

 Alslev ! , Hanenov Skovridergaard (^/9 06). 



41. Plasmopara pusilla (de By.) Schroet, Syll. VII ''*\ Fisch. IV^=^ 

 Syn: Plasmopara geranii (Peck) Berlese &. de Toni, Syll. VIP"^. 



July— Sept., in the leaves. 



Geranium pratense. F. 0xendrup O^/t 80). Geranium silvaticum. B. Almin- 

 dingen (R 06 dd 3T2.) 



42. Plasmopara obducens Schroeter, Syll. VII 2''^ Fisch. IV '"^ 

 Balsamineskimmel (R 04 a "). 



Impatiens noli tangere. F. Vejstrup Aaskov (^/b 80 Exs. Thiimen Myc. No 

 1918), Skaarup. 



43. Plasmopara epilobii (Otth.) Schroeter, Syll. VII ^^^ 6. XIV «°, 

 Fisch. IV '''\ Syn: Peronospora ep. Rabenh., Dueurtskimmel (R04a^'). 



Epilobium parviflorum. B. Almindingen (^^/s 86). 



