850 SPH^EIACEI. 



2341. Xiophiostoma iibxitecta. BerTt, " Bleached Larch 



Lophiostoma." 



Scatiered, minute, black, often slightly elongated, depressed ; 

 ostiolum sometimes quite obsolete, but frequently present, and 

 varying from punctiform to linear; asci clavate, varying greatly 

 in length, paraphyses slender ; sporidia curved, subfusiform, yel- 

 low-brown, quinque-septate. — Tte Not. Schema, p. 46. Cooke 

 Trans. Bot. Ed. vol, ix. Spliceriafihritecta, Berk, in Hook. Journ.'- 

 1853,;?. 43. B. ^- Br. Ann. Nat. Hist. no. Ill, Berk. Outl.-p. 397. 



On bleached larch planks. Dec. King's Cliffe. 



Sporidia "04 m.m. long. 



" The perithecia are rather larger than those of the other fungi commonly 

 present in similar situations. The contents are white. Nothingcan be more 

 variable than the ostiola of this species. Even in extreme cases it is entitled 

 only to a place amongst the Platystonueivova. affinity rather than from wellde- 

 fined characters." — Berkeley. 



2542. Lophiostoma angustilabra. B.&Br. " Gorse 



Lophiostoma." 



Perithecia half-immersed, rugulose, somewhat elongated ; os- 

 tiolum compressed, narrow ; asci clavate ; sporidia biseriate, fusi- 

 form, curved, uniseptate, constricted at the septum, each articu- 

 lation containing from two to three nuclei, and terminating in a 

 hyaline point. — Cooke Trans. Bot. Ed. t. 6, /. 3. Sphceria angus- 

 tilabra, B. ^. Br. Ann.N.H. no. 881, t. xi./. 27. 



On gorse. Leicestershire — Shere, Surrey. 



Sporidia (•0015--0016 in.) •04--043 m.m. long. 



" Differing from ;S^. excipulifonnis in the structure of the spores, which are 

 possibly at length multisL^ptate ; but if so, they are at first composed of two 

 very elongated cones opposed to each other at their bases, and strongly con- 

 Btricted at the commissure."— B. <ScBr. 



2543. Lophiostoma sex-nucleata. Coolte. " Six-nucleate 



Lophiostoma." 



Scattered ; perithecia elongated, black, slightly rugose ; at 

 first immersed, then emergent ; ostiolum compressed ; sporidia 

 biseriate, fusiform, hyaline, slightly curved, five-septate, con- 

 stricted at the centre, and but little at the other septa, each 

 articulation containing a single nucleus. — Cooke Trails. Bot. Ed. 

 vol. ix. t. 6,/. 8. 



On nettle stems. March. Shere, near Guildford. 



Sporidia (-0014 in.) '035 m.m. long. 



