920 SPHiERIACEI. 



AscornoRE. — Epiphyllous ; spots orbicular, large, pallid or 

 cinereous, brownish in tlie centre; peritbecia crowded, circinating, 

 minute, subrotund, black ; asci cylindrical ; sporidia elongated, 

 cylindrical, obtuse at the extremities, hyaline. — De ^ot. Schema, p. 

 64. Cooke Seem. Journ. 186G, t. 50, /. 17. SplicBria brassicce, B. ^ 

 Br. Ann. N.H. no. 656*, t. xii./. 42. SphcBvia brassiccecola, Dubt/, 

 Bot. Gall. u. p. 712. 



On cabbage leaves. Autumn and Spring. Common. 



Nothing can be more common than this on cabbage leaves in autumn and 

 spring, but it is not often found with perfect fruit. — B. cfc Br. 



2769. Sphaerella rumicis. Desm. *' Dock Sphaerella." 



Spots amphigenous, minute, numerous, orbicular, scattered, 

 brown ; peritbecia epiphyllous, conglomerate, somewhat innate, 

 very small, globoso-depressed, becoming concave, olivaceous, 

 then black, pierced with a simple pore; asci large, cylindrical, 

 slightly curved ; sporidia ovate-oblong, obtuse, uniseptate. — 

 Cooke Seem. Journ. 1866,^. 50,/. 28. Cooke, exs. no. 168. Gonn. 

 ^ Rabh. V. t. 4,/. 53. Sphc^ria rumicis, Desm. exs. no. 1298. B. ^ 

 Br. Ann. N.H. no. 658. Sj)hceria lichenoides, Johnst. Fl. Berw, ii. 

 p. 131. 



On living dock leaves. Common. 

 Sporidia ('0006 in.) '015 m.m. long. 



2770. Sphaerella allicina. Awd. " Onion Sphaerella." 



Peritbecia amphigenous, black, covered by the grey epider- 

 mis, densely gregarious or confluent ; sporidia biseriate, oblong, 

 rounded at each end, straight, uniseptate, hyaline, not constricted. 

 — Awd. in Gonn. 4' Rabh. v. p. 19, t. h,f. 69. Sphceria allicina, Fr. 

 S.M.n.p. 437. Rabh.F.E.no. 639. 



On Allium. Shere (E.G.). 



2771. Sphaerella anaxithxna. B. cfc Br. " Scattered Grass 



Sphaerella." 



Scattered, minute ; peritbecia globose, penetrating the cuticle 

 by the small papillae form ostiolum ; asci clavate ; sporidia bise- 

 riate, sublanceolate, strongly constricted in the centre, unisep- 

 tate. — Cooke Seem. Journ. t. 50,/. 29. Sphceria anarithma, B. Sf 

 Br. Ann. N.H. no. 893, 1. 11,/. 37. 



On Aira ccespitosa. Oct. — March. Batheaston. 

 Sporidia ('0012 in.) '03 m.m. long. 



