Kev. M. J. Berkeley and Mr. C. E. Broome on British Fungi. 449 



LII. — Notices of British Fungi. By the Rev. M. J. Berkeley, 

 M.A., F.L.S., and C. E. Broome, Esq. 



[Continued from p. 382.] 



[Plates XIV. to XVIL] 



ACROSPEIRA, n. g. 



Hyphasma decumbens; flocci fertiles erecti sursum ramosi, 

 ramuli apice subquadriarticulati spiraliter convoluti, sporae 

 subglobosse granulatse e uno alterove articulo oriundse. 



952. Acrospeira mirahilis, B. & Br. in Berk. Int. to Crypt. 

 Bot. p. 305. f. 69 a. On sweet chestnuts, Bristol, C. E. B. 



A most curious fungus, in which the dark granulated spores 

 are formed by a transformation of the second joint from the top 

 of the branchlets. All the four terminal joints swell, but the 

 second only in general proves fertile, though in a few instances 

 the terminal joint also is transformed. 



953. Peronospora sordida, n. sp. Maculis latis hypophyllis 

 irregularibus sordide pallidis; floccis supra vage dichotomis, 

 apicibus furcatis insequalibus ; sporis obovatis apice apiculatis. 



On leaves of Scrophularia. Jedburgh, A. Jerdon, Esq. 



Forming broad, irregular, dirty, pallid spots on the under side 

 of the leaves ; threads loosely dichotomous above ; tips forked, 

 unequal ; spores obovate, apiculate, "001 inch long. 



954. Cylindrium septatum, Bonorden, Myc. f. 16. On de- 

 cayed wood. Batheaston, Dec. 1859. 



Forming a white bloom on the matrix. The genus differs 

 from Oidium in the septate spores. 



955. Fusarium heterosporium, Nees, Nov. Act. Acad. Nat. Cur. 

 ix. p. 135. On the glumes and seeds of rye. Peppering, near 

 Arundel. 



956. Peziza (Geopyxis) Geaster, n. sp. Sessilis subterranea 

 fusca globosa in lacinias paucas dein rupta, extus villosa. 



Amongst comminuted stone and earth. Wentworth, Mr. J. 

 Henderson. 



At first globose, about half an inch in diameter, brownish, 

 covered with a villose coat, then bursting into a few lacinise ; 

 asci linear ; sporidia elliptic, with a large globose nucleus, and 

 sometimes one or two smaller ones, •0008-*0009 inch long. 



The surface is not warty, as in P. arenaria. The sporidia of 

 P. sepulta, which is a far coarser species, are mostly smaller, 

 •0004--0005 inch long, though occasionally of the same dimen- 

 sions as in our species. 



957. P. (Dasyscypha;) Vectis, n. sp. Minuta depresso-sub- 

 globosa atro-fusca granulata pilis brevibus fuscis vestita ; mar- 



