Ii8 British Fun^ri^ 



^> 



Botrytis vicia3, Berk., Journ. Hort. Soc. i. 31. 



On leaves of leguminous plants, Viciafaha (Berke- 

 ley's type specimen is on tliis species), V. sepium, V. 

 hirsuta, V. tetrasperma, V, cracca, V. sativa ; Pisum 

 sativum, Lathy ms pratensis, Orohus tuherosa,Melilot7i8 

 officinalis, &c. Common. Often forming a dense felt 

 on the under surface of the leaves. 



Peronospora arenarise, Tul. 



Gonidiophores forming delicate, effused, white 

 tufts, often emerging singly from the stomata, slender, 

 6 — 7 times equally, rarely irregularly, dichotomously 

 divided ; branches spreading, terminal branchlets 

 very slender, subulate, straight ; gonidia elliptical, 

 very obtuse at both ends, 20-25x14-16 p., very 

 slightly tinged lilac ; oospores globose, clear brown, 

 with stout hemispherical warts that sometimes have a 

 tendency to become elongated, 24-30 p> diameter. 



Peronospora arenarise, Tulasne, Compt. Rend. 

 Acad. Sc. tab. xxxviii. ; Cke. Hdbk. n. 1780; Cke. 

 Micr. Fung. t. 7, f. 268, t. 10, f. 211 ; Sacc. Syll. vii. 

 823. 



Botrytis arenarisSj Berk. Journ. Hort. Soc. i. p. 31, 

 tab. 4. 



On leaves of various caryophyllaceous plants. 

 Arenaria serpyllifolia ; Berkeley's type specimen is 

 on A. trinervis ; Stellaria media. Not uncommon. 



B. Leiotliecse, Schroet. ( = Parasitica and Effusse 

 of De Bary). Oospores subglobose, epispore usually 

 smooth, sometimes slightly regulose, but not distinctly 

 warted nor reticulated. Mycelium often as in 

 Calothecse. 



