210 MICROSCOPIC FUNGI. 



JVIlCEOspaa!EiA, Lev. 



Mycelium arachnoid ; appendages straight, dichotomons ; 

 branchlets swelliag at the tip, or fihform.— JSerA. Ouil., 

 p. 404 



Microsphseria Hedwigii, L6v. Mealy Gueldeb-eose 

 Blight; hypophyllous ; mycelium web-like, evanescent; con- 

 ceptaoles minute, globose, scattered ; appendages few, very little 

 longer than the diameter of the couceptaoles ; sporangia 4, ovate, 

 containing 4 spores.— On leaves of mealy Guelder-rose. Near 

 Greenhithe, Kent. 



Microsphseria penicillata, L^v. Gueldee-eosb 

 Blight; amphigenous; mycelium web-like, effuse, evanescent ; 

 conceptacles scattered, minute, globose ; appendages 8-13, equal 

 to the diameter of the conceptacle ; sporangia 4, ovate, rostrate, 

 containing 8 spores. — On leaves of Guelder-rose and Alder. Pro- 

 bably not uncommon. (Plate XI. fig. 234.) 



Microsphseria Mougeotii, L6v. Tba-tbee Blight; 

 amphigenous ; mycelium web-like, oftentimes persistent ; con- 

 ceptacles minute, scattered or gregarious, glooose, at length 

 depressed ; appendages loosely dichotomous % sporangia 12-16, on 

 a short pedicel, 2-spored. — On leaves of Lycium barbarum. Near 

 Dartford, Kent. October, 1864. 



Microsphseria Berberidis, Lev. Bekbebby Blight; 

 amphigenous ; mycelium web-like, oftentimes persistent ; con- 

 ceptacles scattered or gregarious, globose, minute ; appendages 

 few (5-10); branchlets long, divaricate, obtuse at their apices; 

 sporangia 6, ovate, containing 6-8 spores. — On leaves of the 

 common Berberry. Autumn. Frequent. (Plate XI. figs. 239- 

 232.) 



Microsphseria grossularise, L6t. Gooseberut Blight; 

 amphigenous ; mycelium web-Mke, fugacious or persistent ; con- 

 ceptacles scattered or gregarious, globose, minute ; appendages 

 10-15, vaguely dichotomous, ultimate branchlets bidentate; 

 sporangia 4-8, ovate, containing 4-5 spores. — On Gooseberry- 

 leaves. Autumn. !Frequent. 



Microsphseria comata, L^v. Spindle Blight; hypo- 

 phyllous; mycelium web-like, fugacious: conceptacles scattered, 

 minute, globose ; sporanges 8, ovate, with a beak-like termination 

 at their base, 4-spored ; appendages few, sis times the length of 

 the diameter of the conceptacles. — On Euonymus Muropaiis. Shere, 

 burrey. August, 1865. (Br. Capron.) 



