220 MICROSCOPIC FUNGI. 



Microspliseria grossularise. Lev. Gooseberry Bli&iit ; 

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

 ceptacles scattered or gregarious, globose, minute; appendages 

 10—15, ^ vaguely dichotomous, ultimate branclilets bidentate ; 

 sporangia 3—8, ovate, containing 4—5 spores. — On Gooseberry- 

 leaves. Autumn. Prequent. 



Erysiphe, Hedw. 



Mycelium arachnoid ; appendages floccose, simple or irregularly 

 branclied. — Berk. Outl.^ p. 404. 



'^ Sporangia %spored, 



Erysiphe Linkii, Lev. Mugwort Blight; amphigenous; 

 mycelium web-like ; fugacious or persistent ; concept acles minute, 

 globose, scattered, emersed ; appendages white, interwoven with 

 the mycelium ; sporangia 8—20, pyriform, with elongated pedicels. 

 — On leaves of Mugwort. Autumn. Frequent. (Plate XII. 

 figs. 248, 249.) 



Erysiphe lamprocarpa, Lev. Composite Blight ; am- 

 phigenous; mycelium web-like, fugacious or persistent; con- 

 ceptacles minute, globose, scattered, or gregarious ; appendages 

 coloured, interwoven with the mycelium ; sporangia 8 — 16, shortly 

 pedicellate. — On leaves of Salsify, Scorzonera, Plantain, &c. Au- 

 tumn. Not uncommon. (Plate XII. figs. 250, 25L) 



*'^ Sporangia 3 — ^-spared, 



Erysiphe graminis, p. C. Grass Blight; amphigenous 

 or epiphyllous ; mycelium effuse, floccose, persistent ; conceptacles 

 large, gregarious or disseminated, hemispherical, at length de- 

 pressed and semi-immersed; appendages simple or interwoven 

 with the mycelium ; sporangia 20 — 24, ovate, pedicellate, with 

 8 spores.— On leaves of Grasses. Autumn. Prequent. (Plate XL 

 figs. 235, 236.) 



Erysiphe Martii, Lk. Pea Blight; aymphigenous ; my- 

 celium web-like, very often evanescent, globose ; appendages short, 

 interwoven with the mycelium ; sporangia 4 — 8, globose, pedicel- 

 late, with 4—8 spores. — On leaves of Peas, Beans, Umbelliferce, 

 and other plants. Autumn. A^ery commpn. (Plate XL figs. 

 237—239.) 



Erysiphe Montagnei, Lev. Burdock Blight; amphi- 

 genous or hypophyllous ; mycelium web-like, evanescent ; con- 

 ceptacles minute, globose, gregarious or scattered; appendages 

 distinct from the mycelium ; sporangia 8, ovate, rostrate^ with 

 2—3 spores.— -On leaves of Burdock. Not uncommon. 



