APPENDIX. 239 



UlSTCINULA, Lev. 



Mycelium floccose ; perithecia globose ; appendages rigid, 

 simple, bifid or dichoto'.nous, uncinate, at length beut up- 

 wards, — Berk. Outl., p. 404. 



Uncinula Wallrothii, Lev. Sloe Blight; amphigenous; 

 mycelium web-like, evanescent; conceptacles minute, scattered ; 

 sporanges 12-16, pear-shaped, 6-spored ; appendages numerous, 

 twice the length of the diameter of the conceptacles. — On leaves 

 of the Sloe, Prunus spinom. Shere, Surrey. October, 1865. 

 {Br. Capro7i.) 



XJncmula adunca, Lev. Willow Blight ; mycelium 

 ■variable; conceptacles scattered or gregarious, minute; ap- 

 pendages simple; sporangia 8-12, sub-p.\riform, containing 4 

 spores.— On the leaves of Willows, Poplars, Birch, &c. Not 

 uncommon. (Plate XI. figs. 221-224.) 



Uncinula bicornis, Lev. Maple Blight; amphigenous; 

 mycelium web-like, etl'use, evanescent, or like a membrane and 

 persistent ; conceptacles large, hemispherical, at length de- 

 pressed ; appendages simple, bifid or dichotomous, uncinate ; 

 sporangia 8, sub-pyrilbrm, containing 8 spores. — On the leaves of 

 Maples. Common. (Plate XI. figs. 225-228.) 



PoDOSPH^HA, Kunze. 



Mycelium effuse, web-like, evanescent ; conceptacles spherical, 

 containing one subglobose 8-spored sporangium ; spores 

 ovate ; appendages few, dichotomons, thickened at their 

 extremities, hyabne. 



Podosphsera Ktinzei, Lev. Plum Blight; amphigenous; 

 conceptacles minute, scattered, globose ; appendages three times 

 the length of the diameter of the conceptacles. — Oti leaves of 

 Prunus domestica. Shere, Surrey. September, 1865. {J)r. Capron.) 



Podosphsera clandestina, Lev. Hawthorn Blight; 

 amphigenous ; conceptacles minute, globose, scattered ; appen- 

 dages (8-10) equal in length to the diameter of the conceptacles ; 

 branches short and rounded at their extremities. — On leaves of* 

 the Hawthorn. Upper Holloway, October, 1804 ; Shere, ."lurrey, 

 September, 1865. {E. C.) 



