320 MR. F, CURREY ON THE FRUCTIFICATION OF SIMPLE SPHÆRIÆ. 
269, S. CAUDATA, n. s. Tas, LVIII. fig. 50, ascus with sporidia, x 220. Sporidia bi- 
seriate, consisting of a pointed subelliptical brown head, and an elongated colourless 
tail; length of the sporidia (including the tail) 0:002 inch, of the head alone 0:0008 
inch. Perithecia small, scattered, or few together, conical or subglobose, with a 
conical ostiolum. On rotten wood, near Twyeross, Leicestershire. This Sphæria, 
communicated to me by Mr. Bloxam, is very peculiar in the form of its sporidia. 
The perithecia are sometimes naked, sometimes almost buried in the soft rotten 
wood, so that I have had great doubt as to its proper division. Its sporidia resemble 
those of Podospora fimicola, Ces., figured in * Hedwigia,’ tab 14. fig. A. 
270. S. COLLABENS, n. s. Tas. LVIII. fig. 51, sporidia, x 325. Sporidia biseriate, fusi- 
form, swollen or constricted in the middle, with several nuclei, colourless, 0:0014 to 
0:0016 inch long. Perithecia subglobose, with an impressed ostiolum, but the osti- 
olum is often furrowed, or rimose. The perithecia and sporidia agree very nearly 
with those of S. macrotricha, B. & Br., but the perithecia have no hairs. Its habitat 
is wood, whilst that of S. macrotricha is dried leaves and beech mast. The sporidia 
also resemble those of S. scabra; but, besides being smooth, the perithecia of S. col- 
labens are four times the size of those of S. scabra. i 
271. S. Curreyn, Blox. MSS. I have a Spheria from Mr. Bloxam under this name, 
which is possibly the same as the plant last described. In Mr. Bloxam's plant, how- 
ever, the sporidia rarely, if ever, exceed 0:0010 inch in length, and the contents of 
the perithecia have a rose-red tinge. In both this and the Sphæria last described, 
the perithecia with rimose ostiola might easily be mistaken for those of a Hysterium. 
272. S. PULVISCULA, n. s. Tas. LVIII. fig. 52, ascus with sporidia, and free sporidia, 
X 325. Sporidia biseriate, curved or cymbiform, colourless or greenish, when perfect 
with three septa, or at least with the endochrome divided into four portions, giving 
an appearance of three septa; sometimes the endochrome is only once divided, and 
in a young state the sporidia are continuous. Length of the sporidia variable, from 
0:0008 to 0:0012 inch. Perithecia very small, black, rather shining, conical or sub- 
globose, crowded or scattered, with a minute mammillate ostiolum. This species is 
not distinguishable by the naked eye from S. pulvis-pyrius, but its fruit, as will be 
seen, is quite different. 
Div. 20. PERTUSÆ. 
273. S. PERTUSA, Pers.; Fr. S. M. i. p.464. Tap. LVIII. fig. 53, sporidia, x 220. Spo- 
ridia biseriate, I believe; brown, usually 4-septate, broad and curved, 0:0016 to 
0:002 inch long. The specimens are not in good condition. 
274. S. PICASTRA, Fr. S. M. ii. p. 463. Ta». LVIII. fig. 54, sporidia, x 220. Sporidia 
dark brown, multicellular, very irregular in size and shape. I suspect that this plant 
ought to be placed in the genus Hendersonia*. Some of the sporidia were elongated 
as into a foot-stalk. There was no trace of asci. 
* * * i 
* nn Berk. Perithecium carbonaceous, subinnate, emergent, almost mouthless, bursting with a pore 
ü ; m 
an arly. Nucleus, compact, then diffluent ; sporidia erect, elongate, pedicellate, multiseptate. 
IPLODIA, Fr. Sporidia clavate, uniseptate ; otherwise as Hendersonia. 
