76 
NEW AND RARE BRITISH FUNGI. 
Conidia Trichosporium velutum , rendering the surface of the 
matrix brown and velvety. Conidia obovate brown 6 X 4-5*5. 
On Acer campestris. 
276. Sordaria Sparganicola, N. Sp. 
Perithecia black, globose, superfical, covered with black matted 
hairs, ostiola prominent rounded : sporidia, elliptical, dark brown, 
truncate at one end, from which springs a cylindrical hyaline appen- 
dage. Sporidia, 12 x 8 mm. 
On dead Sparganum. Mr. Bucknall, Yattan, July, 1881. 
277. Anthostoma Italicum, Sacc. Speg. Michel I., 326, Fungi Ital., 
t. 165., Sacc. Syll., i.,p. 297. 
Stroma superficial, variously effused, black, perithecia in groups 
decorticating the stems in which it occurs, subimmersed, globoso- 
depressed to \ mill, in diameter, papillate black ; asci cylindrical 
80-1 00 X 8-10 shortly stipitate, apex obtuse and sub-trifoveolate, 
packed between the filiform paraphyses, octosporous: sporidia 
ovate, oblong, 25 X 7-8 curved, brownish, 2, rarely 1, nucleate, pro- 
vided at both ends with a very short hyaline appendage. 
Near Bristol. Mr. Bucknall, 1882. 
278. Phomatospora endopteris, N. sp. 
Perithecia globose, deeply buried in the stem, ostiola very 
minute ; neck long and cylindrical, reaching the surface ; asci 
cylindrical, 30 x 5. Sporidia oblong, oval, hyaline, simple, 
uniseriate, 10-11 X 3 mill. 
On Pteris aquilina. Mr. C. Bucknall. Leigh Wood, April, 1882. 
279. Didymella proximella (Karst.), Sacc. Syll. i., p. 558, Sphcerllea 
Prose. Karst. Myc. Fenn. ii., p. 177, Sp. hyperopia Rehm. Ascom. No. 348, 
Didymosphaeria Kunzei Niessl. Hedrvigia, 1866, p. 106, Rah. Fxs. 2039. 
Perithecia amphigenous, scattered minute, spherical, papillate, 
pertuse, black, 100-200 mill, in diameter ; asci subsessile, oblon- 
gato-clavate, 70-100 x 16-22. Sporidia eight, uni-or biseriate, 
subovoido-oblong, apex slightly but obtusely attenuated, unisep- 
tate, superior division rather the larger, 2 to 4 nucleate, constricted 
at the septum, 20-24 x 8-10. 
On Carex ampullacea. Forres. Rev Dr. Keith. On C. hirta , 
King’s Lynn. Comes near Sp. anarithma, B. & Br. 
280. Didymosphaeria Winteri, Niessl. Neue Kernpilze, p. 165. Sacc. 
Syll. i„ p. 702. 
Perithecia scattered or rather gregarious, minute, hemispherical, 
then depressed, covered by the epidermis at first ; matrix not dis- 
coloured, ostiola papillate, perforate ; coriaceo-membranaceous, 
black ; asci clavate, stipitate, octosporous 60-80 x 10-12 ; 
sporidia bi-rarely uniseriate, lanceolate or oblong lanceolate, rather 
obtuse, centrally, or rather above the centre, uniseptate, con- 
stricted, straight or slightly curved, greenish-yellow or olivaceous, 
11-14 x 4^-5 mk., paraphyses numerous, rather narrow. 
On dead potato stems. Mr. A. Croall. Stirling, N.B. 
281. Melanconis aceris, N. sp. 
Stroma valsoid, black, suborbicular or conico-truncate, 2-5 mill, 
in diameter, corticolous or lignicolous, circumscribed by a black line. 
Perithecia ^--1 mill, in diam., 5-15 in a group; ostiola minute; 
