CEYLON FUNGI. 
331 
diameter, collapsed, rugose, without a projecting ostiolum, 
bearing short, irregular, erect hyphæ or remnants of conidio- 
phores. The wall is cellular, not carbonaceous. The asci 
are shortly pedicellate, 135-150 X 10 subcylindric, eight- 
spored. Linear paraphyses are present. The ascospores are 
greenish-hyaline or pale fuscous, oval, one-septate, con- 
stricted at the septum, ends rounded, 15-20 X 7-9 |jl. It 
appears to be correctly placed in Eriosphæria. 
184. — Eriosphæria nigrita (B. & Br.) Sacc. 
This was described by Berkeley and Broome in Fungi of 
Ceylon, 1091, as “ Sphæria (Byssisedæ) nigrita B. & Br. 
Mycelio acanthimorpho ; peritheciis minute hispiduhs ; ascis 
linearibus ; sporidiis elliptic is submetulæformibus, unisepta - 
tis utrinque hyalinis. The mycehum resembles that of 
S. acanthostroma Mont. ; but the sporidia are much larger, 
besides having the tips hyaline; sporidia *0005 (inches) 
long.” 
The perithecia are embedded in a compact layer of mycelium 
which is composed of stout (7 ^ diameter) branched inter- 
woven hyphæ. The hyphæ do not resemble those of SpJiæ- 
via acanthostroma, but in the younger parts they terminate 
in long, acute, spine-like branchlets, often in groups of three. 
The perithecia are globose, about 0*3 mm. diameter, covered 
with spreading setæ, which are cylindric below, tapering and 
acute above, black, opaque, 50-100 X 6 The wall of the 
perithecium is cellular and rather thick. The ascospores are 
oval, with rounded ends, three -septate, slightly constricted 
at the septa, at first hyaline, the two middle cells becoming 
dark brown, the smaller terminal cells remaining hyaline and 
ultimately collapsing, so that the ends appear truncate. They 
measure 16-20 X 7-8 pi, Berkeley and Broome’s measure- 
ment probably refers to the collapsed barrel-shaped spore. 
This is evidently Chætosphæria, and will stand as Chætos- 
phæria nigrita (B. & Br.). 
185. — Chætosphæria bihyalina (B. & Br.) Sacc. 
The original description, in Fungi of Ceylon, 1087, is 
“ Efiusa, nigerrima ; peritheciis globosis collapsis minutissime 
