378 Rev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 



The perithecium is but slightly compacted in this species, and 

 the part nearest to the cortex is hyaline. The colour of the 

 spores is deep sea- blue, exactly the vitreus of the Latins. 



Plate XII. fig. 8. a. Section of perithecium magnified ; b, c. spores and 

 sporophores magnified 340 diameters. 



428. D. platyspora, n. s. Peritheciis minoribus supra pro 

 maxima parte deficientibus ; sporophoris validis cum sporis ob- 

 longis amplis utrinque obtusis ssepe deciduis. On dead twigs of 

 plane, Batheaston, Feb. 1850. 



Forming rather minute slightly raised pustules ; perithecia but 

 slightly developed, generally if not always deficient above. Spo- 

 rophores short, stout, obtuse, simple, often breaking off with the 

 oblong obtuse spores, the cavity of which is simple, but the con- 

 tents decidedly granular, so as at first to give a granulated aspect 

 to the outer wall. 



429. D. microsperma, n. s. Perithecio nigro sub lente pal- 

 lido ; sporis minoribus oblongis simplicibus. On dead tw r igs of 

 sallows, King's Cliffe, and in the West of England, C. E. Broome. 



Resembling strongly D. carbonacea, but somewhat larger, and 

 distinguished at once by the minute oblong simple spores seve- 

 ral times smaller than in that species. In some pustules of this 

 species we have seen the perithecia open by a minute fissure, the 

 lips of which being elongated by the oozing out of the spores 

 make a spurious ostiolum. 



It is given in the first edition of ' British Fungi *, with D. car- 

 bonacea, at no. 44, as a state of Phacidium carbonaceum, Fr. 



Plate XII. fig. 8. e. Spores magnified 340 diameters. 



429*. D. abnormis, n. s. Perithecio globoso spurio prorsus 

 tecto poro pertuso ; sporis breviter fusiformibus luteo-fuscis uni- 

 septatis. On shoots of elder, Batheaston, C. E. Broome. 



Perithecia small, entirely covered with the cuticle, globose, 

 confused with the matrix, pierced above with a round pore. 

 Spores shortly fusiform or lanceolate, uniseptate, yellow-brown. 



This species approaches the type of Diplodia. It is mixed with 

 a Phoma, no. 406*, which is more conspicuous, though smaller. 



430. Vermicularia atramentaria, n. s. Effusa gregaria macu- 

 lseformis ; sporis rectis brevibus endochromate utrinque retracto. 

 On decayed stems of potatoes : extremely common. 



Forming large ink-black velvety patches, crowded with minute 

 perithecia clothed with long straight subulate bristles, connected 

 at the base by intricate fibres creeping beneath the cuticle of the 

 matrix. Spores minute, linear, rather short ; endochrome re- 

 tracted to either extremity. 



Distinguished at once by its straight spores. In general ap- 



