OYULARIA. 321 



fertile hvpliae erect, simple, not septate, a2;gregated ; 

 conidia elliptical, creara-colonred, 15 /x long, in short chains 

 of two or three, terminal upon the hyphae. 



Banmlaria destructu-a, Phill. & Plow., Grev., vi. p. 23, t. 94, 

 f. 1 ; Sacc, SylL, iv. n. 962. 



On Mi/rica gale. When it occurs upon tho smaller branches 

 it is in the manner of an encircling zone 1-3 cm. wide, which 

 quickly causes loss of vitality of the parts beyond, very 

 much in the same manner that BJii/fisma maxima does. It 

 also occurs on the under surfaces of the leaves, up jn reddish- 

 brown spots. (P. & P.). 



Ovularia senecionis. Mass. 



Tufts white, conspicuous, irregular; hyphae erect, septate, 

 wav}'-, slender ; conidia cylindrical, ends rounded, con- 

 tinuous, 7-18 X o /u,, colourless. 



Ito miliaria senecionis^ Sacc, SylL, iv. n. 1023. 



C>/lindros2?orium senecionis, B. & Br., Ann. Nat. Hist., 

 n. 1G13. 



On leaves of Senecio vulgaris. 



Ovularia lactea. Mas.^. 



Spots subcircular, whitish, bounded by a brownish 

 margin; hj^phae rather wavy, 30-60 x 2 fx; conidia variable, 

 elliptic-oblong, fnsoid, or cylindrical, both ends obtuse, 

 8-11 X 2-3 /x, colourless, in short chains. 



Bamularia lactea, Sacc, Mich., ii. p. 549 ; Sacc, Syll., iy. 

 n. 979. 



On upper surface of living leaves of Viola Idr'a, V. 

 odorata, &c. 



Ovularia armoraciae. Mass. 



Spots irregular in form and size, often numerous, sub- 

 ochraceous then pale; hyphae sub fasciculate, springing from 

 a prostiate ni3^celiuin, without septa, simple or rarely with 

 an indication of branching; conidia elongated, cylindrical, 

 both ends obtuse, colourless, 15-25 x 2-5-3 fi (or accord- 

 ing to Fackel, becoming subventricose, and measuring 

 22 X 5 fx). _ 



Bamularia armoraciae, Fckl., Symb. Myc, p. 361, t. i. 

 f. 24; Sacc, SylL, iv. n. 978. 



On leaves of horse-radish. 



VOL. in. Y 



