SPH^RIACEI. 849 



give a curved appearance to the sporidla. — Cooke Trans. Bot. Soc. 

 Edin. vol. ix. t. 6, f. 4. Sphceria macrostoma, Curr. Linn. Titans. 

 xxii. p. 321, pi. Iviii./. 64? 



On decorticated twigs. Oct. Shere, Surrey. 



var. p* Sporidia larger (-0012 in.) -03 m.m. long, Tntli no 

 transverse septa; otherwise identical. 



On dead Clematis vitalba. April. Shere. 



This species is very distinct from Sphceria macrostoma, Tode. It is possible 

 that Mr. Carrey's fig. 64 may belong to it. Externally there is considerable 

 resemblance, except that the perithecia are smaller. The sporidia are ('0009 

 ill.) '0228 m.m. long, and in var, (S. ('0012 in.) '03 m.m. long. 



2339. Iiophiostoma viridaria. Cooke. *' Green-spot 



Lophiostoma." 



Perithecia scattered over conspicuous green spots an inch or 

 more in length, semi-immersed, black ; ostiolum, linear, asci cy- 

 lindrical ; sporidia uniseriate^ triseptate, attenuated towards each 

 extremity, constricted at the septa, brown, with a large nucleus 

 in each cell. When free the sporidia exhibit a distinct outer 

 transparent membrane which invests them. — Cooke Trans. Bot. 

 Ed. vol. ix.t.6,f.2. 



On decorticated twigs of Maple. Jan. Shere, Surrey. 



The conspicuous green patches on which the perithecia are usually found 

 resemble those caused by the mycelium of Eelotium ceruginosum, indeed, it is 

 not improbable that the latter originates the patches upon which, the Splueria 

 locates itself. Hitherto the green patches and the perithecia have always been 

 f'lund associated. The perithecia are larger and more prominent than in Lo- 

 yjhiostoriiahirAi.S2ndata, and both are very distinct from S. macrostoma, Tode, in 

 their fructification, although somewhat resembling small forms of it in ex- 

 ternal appearance. The fruit much resembles that of some species of Mas- 

 saria. Length of sporidia ('0014 in.) "035 m.m. 



2540. Lophiostoma nucula. Fr. " Oak-bark Lophiostoma." 



Sub-gregarious, black ; perithecia minute, innate, superficial, 

 ovate, even at first papillary, then pierced ; sporidia uniseriate, 

 oblong, obtuse, triseptate, constricted at the centre, hyaline. — De 

 Not. Schema, p. 46. Sphceria nucula, Fr. Sym.Myc. vol. ii. p. 466. 

 Fries, exs. no. 230. Berk. Eng. Fl. vol. Y.p. 2, p. 2QQ. Fckl. exs. no. 

 2168. 



On oak bark. 



The figure given in Trans, Bot. Ed. t. 6, f. 7 belongs to Lojyhiostoma, grega- 

 rium, Fckl. exs. no. 929, and not to this species, to which Fuckel at first re- 

 ferred it. (See Sym. Myc p. 158.) 



