SPH^EOXEMEI. 439 



1291. Vermicularia circinans. BerTi. " Circinating 



Vermicularia." 



Spots orbicular, perithecia concentric, seated on a hyaline, 

 articalated, radiating mycelium. Spores oblong, slightly curved, 

 attenuated. — Berk. Gard.Chi^on. 1861, p. odd, Jig. 1857,^. b3,fig. 



On Nocera onions. 



In round black spots, consisting of multitudes of distinct, extremely minute 

 subglobose perithecia, clothed with long rigid black hairs, and sending off 

 in every direction from the base flexuous hyaline articulated, often branched 

 or anastomosing threads. The spores are slightly curved and attenuated at 

 either end, though the tip is very obtuse. The endochrome is either retracted 

 to either end, leaving a free space in the centre, or the whole mass is broken 

 Tip into several round bodies.— J/. /. £. 



Gen. 118. SISCOSIA, Lib. 



Perithecium flat, opening at the 

 base ; spores septate, obliquely 

 aristate at either end. — Berk. Outl. 

 ;?. 318. (i^^>.162.) 



Fig. 162. 

 1292. Discosia alnea. Lib. " Leaf Discosia." 



Gregarious, innate, orbicular, black, shining, at first convex, even, 

 soon depressed round the dot-like ostiolum, at length collapsed 

 and rugoso-plicate ; spores triseptate, obliquely aristate at each 

 extremity. — Berk. Outl. p. 318. Sphceria artocreas, Tode. ii./. 72. 

 Fr. S.M.ii.p. 523. Eng. Fl. \.p. 278. FcU.exs. no. 452. Kl. exs. 

 ii. 720. 154. Fries. t.8,f.l-Q. De.Not. Act. Tur.lS4.d,^.f.2. 

 On dead leaves. Common. [United States.] (fi^. i62.; 



Gen. 119. PILIDIUM, Kunze. 



Perithecium scut el lie form, smooth, shin- 

 ing, opening irregularly ; spores curved, 

 without appendages. — Berk. Outl. p. 318. 



{Fig. 163.) 



Fig. 163. 



