NEW AND RARE BRITISH FUNGI. 
73 
221. Sordaria polyspora, Ph. $ PI. 
Perithecia semi-immersed, scattered, globose, bristled with a few 
black hairs upon the upper part ; ostiola elongate ; asci cylindrical, 
polysporous (128 ?), *06 X '01 mm. ; sporidia elliptical, black, 
simple, *005-008 x *004-*005 mm. 
Upon rabbit’s dung. Leigh Down, Bristol. 6 March, 1881. 
Mr. C. Bucknall. 
This well marked species is distinguished by the small size of its 
sp oridia and other characters. 
Plate 158, fig. 1, (a) ascus, ( b ) sporidia. 
222. Sphaeria (Teichospora) deflectens, Karst. 
Perithecia scattered or gregarious, at length nearly superficial, 
spherical, at length often more or less collapsing ; ostiola incon- 
spicuous, smooth, shining black ; asci cylindrical, *06-*08 ; sporidia 
6 or 8, obliquely uniseriate, oblong, thicker in front, 1-3 septate 
often with one or more longitudinal septa, slightly constricted at 
the septa or not, brown, 012-*06 mm. x *008-*005 mm. 
Karsten. Mycol. Fenn. II., p. 69. 
Onrotten beech wood. Stapleton Park. Dec., 1878. Mr. Bucknall. 
Plate 158, fig. 7, (a) ascus, ( b ) sporidia. 
223. Sphaeria (Melanomma) fuscidulum, Sacc. 
Perithecia scattered or gregarious, free or semi-immersed, black, 
smooth, spherical or subdepressed, *25 mm. across ; ostiola cylin- 
draceo-conical as long as the perithecia ; asci clavate, *055 x '007- 
*008 mm., attenuated below, octosporous ; sporidia biseriate, *012- 
*014 X *0035-*004 mm., straight or curved, at first sub-hyaline, 
4 nucleate then 3 septate, slightly constricted at the septa, brown. 
Saccardo, Michelia I., p. 450 ; Fung. Ital., p.294 ; Fungi Venet 
ser. III., p. 5. 
On holly. Coed Coch. Oct., 1880 (W.P). On elder. King’s 
Lynn, Nov., 1880. 
224. Sphaeria ammophila, Ph. & PI. 
Perithecia immersed, large, two or three in a group beneath the 
circumscribed blackened epidermis ; ostiola minute, punctate ; asci 
cylindrical, *08 mm. long by *008- 01 mm. wide ; sporidia eight, 
oval, black-brown, uniseriate, with a slight hyaline appendage at 
either end, *008-*01 mm. long by *005-006 mm. wide. 
Plate 158, fig. 5, (a) the plant enlarged, (6) perithecia, (c) 
ascus, ( d ) sporidia, ( e ) three sporidia more highly magnified, 
showing the hyaline appendage. 
On Ammophila arundinacea. Holm-next-th e-Sea, Norfolk. 15 
August,. 1880. 
225. Sphaeria fluviatilis, Ph. $ PI. 
Perithecia minute, immersed, globose ; ostiola papillate ; asci 
clavato-cylindrical, *06-*07 X *01-*015 mm. ; sporidia biseriate, tri- 
srptate, fusiform, curved, pale greenish-brown, *02- , 022 X *005 mm. 
On Lemania fluviatilis. Longmynd. May, 1880 (W.P.). 
