NEW AND RARE BRITISH FUNGI. 
77 
asci clavate, 65-70 x 10 ; sporidia hyaline, uniseptate, nucleate, 
sliglily constricted, elliptical, 12-15 x 4-5, not appendiculate. 
On Acer. Mr. W. B. Grove. 1883. 
282. Diaporthe (Chorostate) pustulata ( Desm .), Sacc. Sp. punctu- 
lata, Desm. 13. Not., 70, 1846. Aglaospora pustulata, Tul. Carp, 
ii., p. 163. Sacc. S>yll. i., p. 610. 
Erumpent, pustulate, scattered in the pallid certical stroma, cir- 
cumscribed by a black line ; disc subconvex, black, perithecia, 4-12, 
crowded in the middle, ostiola prominent, rather thick, umbilicate ; 
nucleus white, then blackish ; asci oblong, cylindrical, obtuse, 
octosporous ; sporidia fusiform, 4 nucleate hyaline, not appendicu- 
late, 16-19 x 3-4. 
On Acer pseudoplatanus. Leigh Down. C. Bucknall. 1882. 
283. Diaporthe (Euporthe) discors, Sacc.=(J>. rumicis, Plow, in 
Grev. vii., p. 197. Sacc. Syl. I., p. 644.) 
Stroma variously effused and interrupted, blackening the sur- 
face of the stems, not surrounded by a black line beneath ; peri- 
thecia few, globose, mill, in diameter ; ostiola scarcely existing, 
punctiform ; asci fusiform-clavate, 60-62 x 10-11, without para- 
pliyses, octosporous ; sporidia fusiform, curved, rather obtuse, 17-1 8 
X 4-5, 4-nucleate hyaline. 
On Pumex obtusijolius. Castle Rising. 
284. Diaporthe (Tetrastaga) obscurans, Sacc. Syll.\,,p. 675. Fungi 
Ven. Ser. iv., p. 7. 
Stroma widely spreading round the affected branch, limited by a 
black line ; perithecia discrete, in clusters of 4 to 6, surrounded by a 
black line, forming a slightly elevated but obscure swelling under 
the bark, globose, depressed, £ mill, in diameter, black; ostiola 
very short, not projecting above the bark, but just piercing it ; 
asci widely fusiform ; octosporous 45-50 X 12 mill. ; sporidia 
biseriate, rarely obtusely uniseriate ; fusiform, rather obtuse at 
both ends, 12 x 4^-5 mill., uniseptate, very slightly constricted, 
4-nucleate, hyaline. 
On ash. Forres. Rev. Dr. Keith. 
285. Leptosphaeria praetermissa (Karst.), Sacc. Syll. n., p. 26. 
Perithecia clustered, covered by the cuticle, which is more or 
less discoloured, sphaerical, base flattened ; ostiola prominent, but 
often obsolete, widely perforate, smooth, even, black, 5 mill, wide; 
asci cylindraco-subclavate, 110 x 10-11 mill. ; sporidia 8, uni- 
seriate oblong, obtuse at both ends, straight or curved, 3-septate, 
more or less constricted at the septa, very pale, yellowish-brown, 
18-32 x 7-10; paraphyses crowded, sub-coalescent. 
On Rubus idceus. Rev. Dr. Keith. Forres. June, 1882. 
Comes near Sp. abbreviata, Cooke, but is not in lines, nor are 
asci saccate. 
* Sphaeria fluviatilis. P7i. Sp PI. Grev. x., /?. 73, is Sphaeria Lemaneae 
{Cohn. Sp Wor.), Beitr. zu Morph, and Phys. d Pilz.. m.,p.l,, t. 1. 
286. Zignoella insculpta (. Fr .), Sacc. Syll.n.,p. 255. 
Perithecia semi-immersed, globose, brownish-black, papillate, 
then pertuse, the upper part falling off; asci subsessile, oblongato- 
cylindrical, 150 long by 15 to 20 mill, wide; sporidia eight, ob- 
