62 



common f. inst.: J. Gaardbogaard ; F. Vejstrupgaard (July 61); S. Gammelmose, 

 Charlottenlund, Emdrup, Hammer 1; Maen Liselund. Sderanthus annuus, com- 

 mon. Lepigonum campestris. S. Frederiksvark, Geelskov. Lepigonum salinum. 

 Thorseng; S. Praesta!, L. Lids0 (Exc. "/a 84). 



52. Peronospora arenariae (Berk.) de By., Syll. VII ^''^ Fisch. 

 IV ""^ Sandvaanerskimmel (R 04 a ''^). 



April—June, common. 



Moerhingia trinetvia. F. Kvaerndrup, Skaarup; S. Boserup (C. Thomsen). 

 Arenaria serpyllifolia. F. Nyborg!, Holmdrup (^/e 73). 



53. Peronospora obovata Bon., Syll. VII '", Fisch. IV", Sperge- 

 lens Bladskimmel (R 93 c ''), Spergelskimmel (R 02 a ''^ & 04 a "). 



On stems and leaves of Spergula arvensis, very common in June— Octob. 



54. Peronospora dianthi de By., Syll. VII ''\ Fisch. IV ^^^ NeUike- 

 skimmel (R 04 a "). 



June— Sept. 



Agrostemma githago. J. Skive!, Viborg!; S. Ballerup, Landbohiajskolens 

 Mark, 0rsl0v (8/7 79 P. N.), Nysa, Hammer (Jak. Lge.). Melandrium album. F. 

 Vejstrup Aaskov. Melandrium mbmrn. F. Vejstrup Aaskov. Silene vinosa. S. 

 Vallensbaek Mose. 



55. Peronospora farinosa (Fries) Keiszler, Syn : Botrytis farinosa 

 Fries S. M. Ill ">\ Per. effusa (Grev) Rbh., Syll. VII ^'\ Fisch. IV '", 

 Spinatskimmel (R 02 a ^"^ 6. 04 a ^0. Lit: Zahlbruckner II ^^^ (nomen- 

 clature). 



June— September, common on the leaves of many species of Cheno- 

 podiaceae. 



Chenopodium polyspermum. F. Skaarup, L. Stensgaard. Chenopodium bonus 

 Henricus. F. Hesselager; Thorseng, Bregninge; G. Jungshoved. Chenopodium 

 hybridum. F. Odense. Chenopodium album. J. Dvergetved (V. S.), Frederikshavn 

 (M. L. M) ; F. Skaarup (^/e 70) ; S. Vesterfslled, Roskilde. Chenopodium glaucum. 

 J. Aarhus!. Spinacia oleracea. J. Skive!; F. Odense; S. Snedinge (P. N.), Fredes 

 riksberg; Falst. Stubbekabing. Afriplex hortense f. sanguinea. S. Landbohejs 

 skolens Have. Atriplex litovale. F. Lundeborg. Atriplex patulum. L. Pederstrup, 

 Stensgaard; Falst. Stubbekobing. Atriplex hastatum. J. Aalborg (F. K. R.). F. 

 Hofmansgave. 



56. Peronospora Schachtii Fuckel, Syll. IV '^^^ Fisch. IV^', Syn: 

 Per. betae (P. N. 74 a ^"'X Bedens Bladskimmel (R 93 c ^^ 6. 04 b ""8), 

 Bedeskimmel (R 02 a '"^ c. icon 6. 04 a "). 



Rostrup records (94 e) that it hibernates in the bud of the man- 

 golds (Beta vulgaris rapifera) which are stored in a pit during winter 

 to be planted again the following spring for the cultivation of seed 

 (see also F. K. R. 07 a ^°^). It may be found on the new leaves in 

 May (R78). 



