OOSPOBA. 279 



On Tubercularia vulgaris, Nectrla cmnaharina, and the 

 adjacent bark. (Grove.) 



** Conidia yellow. 



Oospora favonim. Sacc. & Yogi. (fig. 1, p. 274.) 

 Tufts minnte, white, unconspicuous, hyphae branched, 



intertwined, septate, fertile branches erect bearing short 



chains of yellow, snbglobose conidia, 4-5 jtu 

 Oospora favorum, Sacc, Syll., iv. 83. 

 Oidium favorum, B & Br., Ann. Nat. Hist., n. 762, t. 16, 



f. 14; Cke., Hdbk., n. 1815. 



On honey-comb. Eare. (Type in Herb. Berk., Kew.) 

 An examination of type specimen shows the conidia 



subglobose and concatenate in short chains. When quite 



young the conidia are filiform. 



Oospora microsperma. Sacc. & Vogl. 



Tufts minute, scattered, equal, yellowish-ochre, hyphae 

 branched, septate, radiating, conidia in chains, subglobose, 

 pale yeUow, 4^5 fi.. 



Ooesjpora microsperma, Sacc, Syll., iv. 84. 



Oidium microspermum, B. & Br., AJnn. Nat. Hist., n. 1387. 



On bark of fir. Eare. 



Tufts about ^ line across, gregarious, numerous. (Type 

 in Herb. Berk., Kew.) 



*** Conidia rose-colour, red, or orange. 



Oospora rosella. Grove. 



Hyphae fasciculate, at length effused, long, erect, then 

 effused, branched, 2-3 /a thick, aseptate, hyaline ; conidia 

 concatenate in rather long simple chains, rosy, elliptical, 

 apiculate at both ends, 10 x 4= fu 



Oospora rosella. Grove, Journ. Bot., n.s., vol. xiv. p. 163; 

 Sacc, Syll., iv. 63. 



On horse-dung. Eare. 



Tufts ^1 mm. high, becoming confluent. Allied to 

 0. fasciculata, but distinguished by the colour of the 

 conidia. 



