346 FUXGUS-FLOKA. 



3-5-4 /J., hyaline, continuous, rather acute at both ends, 

 catenulate. 



Bamularia lapsanae, Sacc, Mich., ii. p. 549 ; Sacc, Sj'l!., 

 n. 1008. 



On the under surface of living leaves of Lapsana communis. 



Ramularia pruinosa. Speg. 



Spots at first small, soon coalescing and covering the 

 greater portion of the leaf, ochraceous ; tufts densely gre- 

 garious, whitish, prunose ; hyphae suberect, Cdntinuous, 

 40-60 X 3-4 fj., apex 1-3 denticulate ; Cduiilia cylindriciil, 

 and rounded, 20-30 x 3-4 /j,, becoming 1 -septate, colourless. 



Bamularia pruinosa, Speg., Mich., ii. p. 170; Sacc, Syll., 

 iv. n. 1022. 



On leaves of Senecio jacohaea. 



Ramularia variabilis. Fuckel. 



Tufts lax, tliin, whitish, seated on greenish-brown spots; 

 liyphae fasciculate, flexu us, continuous, apex very minutely 

 denticulate; conidia very variable, ovate, obovate, elliptical, 

 typically cylindrical and 1 -septate, colourless, 15— 22 x 3-4 /j,. 



Bamularia variabilis, Fuckel, Symb. Myc, p. 361 ; Sacc, 

 Syll., iv. n. 1030. 



On leaves of foxglove (^Digitalis purpurea), Yerhascum 

 ihapsus, V. blattaria. 



Ramularia calcea. Ces. 



Spots minute, whiiish, bounded by a brown margin; 

 hyphae fasciculate, cylindrical, 15-20 X 2 /a, sparingly den- 

 ticulate, hyaline, continuous; conidia cylindrical, slightly 

 obtuse or ajdculate at both ends, 25 x 3-3 '5 /x, continuous 

 or 1-septate, hyaline. 



Bamularia calcea, Gesati, in Klotzsoh, Herb. Mycol., 

 1681; Sacc, Syll., n. 1032. 



On leaves of ground-ivy (Gleclioma hederacea'). 



Ramularia cryptostegiae. Pim. 

 Snow-white, cottony, very delicate; hyphae simple or 

 sparingly branched ; conidia cylindric-oblong, apex rather 

 obtjise, 30-40 X 6-7 /i, delicately 1—3 septate, apical on the 

 hyphae. 



