68 
Masses and Salmon.— Researches on 
Arachnomyces, gen. nov. 
Perithecia globosa simplicia astoma membranacea parenchymatica 
appendicibus fuscis eumorphis instructa, ascis minutis numerosis 
globosis, sporis primum conglobatis continuis fuscis. 
A Pleuroasco , Mass, et Salm., differt subiculi defectione et ap- 
pendicibus fuscis, a Magnusia , Sacc., ascis globosis et sporis 
conglobatis. 
A. nitidus, sp. nov. (Figs. 127-131). 
Peritheciis globosis mill. diam. nigris nudis nitidis tenui- 
membranaceis fragilibus contextu parenchymatico e cellulis polygonis 
irregularibus 5-10 /i latis composite*, appendicibus e parte perithecii 
inferiore orientibus paucis flexuoso-contortis atro-fuscis 5-6 /* latis 
nitentibus semiopacis septatis perithecii diametro 5-7-plo longioribus 
apice rectis vel simpliciter circinatis, ascis numerosissimis subglobosis 
circ. iofi diam. mox evanescentibus, sporis primum octono-conglobatis 
sphaeroideo-compressis, 3-4x2-5/11, fuscis. 
Hab . — In plantis putridis, Kew, Sept. 1901 ; Cadeby, Yorkshire 
(Chas. Crossland, Sept. 1901); in fimo murino, Thornton Hough, 
Cheshire, Sept. 1901. 
The above Fungus would seem to be not uncommon on fragments 
of rotting plants (especially stems of grasses) when heaped together, 
although on account of the small size of the perithecium it may easily 
be passed over. Under a lens the shining wall of the perithecium 
attracts attention ; when the Fungus is perfectly ripe the wall becomes 
extremely brittle, and cracks at the slightest pressure. The perithecia 
are usually found connected together in groups of five or six by means 
of their interlaced appendages. We have met with the Fungus in two 
localities at Kew on fragments of rotting plants, and it has been found 
on the same substratum at Cadeby, Yorkshire. Curiously enough, it 
also occurred on some Rats’ dung from Thornton Hough, Cheshire. 
It may be noted that in the present genus the spores, which remain 
in little balls of eight for some time, strongly resemble in their 
great number, size, arrangement, &c., those of Pleuroascus Nicholsoni , 
Mass, and Salm. 
A. sulphurous, sp. nov. (Figs. 55-60). 
Peritheciis globosis -|-§ mill. diam. superficialibus indumento 
sulphureo arete adhaerente obtectis tenui-membranaceis fragilibus 
contextu parenchymatico e cellulis polygonis irregularibus 5-10/1 
latis composito basin versus appendicibus paucis fexuosis 5-6 \x latis 
