280 FUNGUS-FLORA. 



Oospora aurantia. Sacc. & Yogi. 



Tufts irregular, scattered, becoming confluent, thick and 

 spongy, pale orange ; hyphae branched, septate, 6-8 /A, thick, 

 conidia concatenate, chains simple or branched, conidia 

 broadly elliptical, 7 x 5 p or 6-7 //., pale orange. 



Oospora aurantia, Sacc., Syll., iv. 81. 



Oidium aurantium, Cke., Grev. 



On spent hops. Bare. 



Forming broadly extending patches formed by the blending 

 of several originally independent tufts; clear pale orange, 

 becoming much paler when old. (Type in Herb., Kew.) 



Oospora Crustacea. Sacc. 



Tufts at first orbicular, becoming confluent, velvety, bright 

 orange or vermilion ; chains of conidia long, often curved, 

 orange-vermilion, conidia cuboid globose, 68 /*. 



Oospora Crustacea, Sacc., Syll., iv. 72. 



Torula sporendonema, Cke., Hdbk., n. 1426. 



On cheese, glue, &c. Not uncommon. 



Often forming broadly effused orange-vermilion patches 

 that become crustaceous when old. 



'* Conidia fulvous or brownish. 



Oospora fulva. Sacc. & Vogl. 



Tufts dense, often broadly effused, velvety, at first 

 whitish, becoming fulvous; conidia concatenate, fusiform, 

 fulvous, 8-11 x 5 p. 



Oospora fulva, Sacc., Syll., iv., 85. 



Oidium fulvum, Link. 



On rotten wood. Eare. 



Often forming patches extending for several inches. 



Oospora fusca. Grove. 



Forming a clear brown powder, which often covers the 

 whole exterior and disc of the host ; chains of conidia at first 

 erect, but soon becoming depressed and intricate ; conidia 

 fusiform, clear ochraceous-brown, 6-8 x 3-5-4 p., reaching 

 even 10 X 5 p. 



Oospora fusca, Grove, Journ. Bot. (1885), p. 164, tab. 257, 



Atysidium fuscum, Bor., Hdbk., p. 35, f. 13. 



