314 MR. F. CURREY ON THE FRUCTIFICATION OF SIMPLE SPHÆRILÆ. 
Div. 25. Susrecræ.—Perithecia innate, covered, at length erumpent, concrete with the matrix, 
often without a prominent ostiolum. | 
Div. 26. CavticoL.z.—Perithecia subinnate, at first covered, at length exposed by the separation 
of the epidermis, discrete from the matrix. 
Div. 27. Forucozæ.—Perithecia innate, covered, connate with the matrix, very rarely erumpent — 
or free. ; 
Div. 28. Depazea.—Perithecia simple, innate, seated on an arid spot on leaves which are still 
green. 
Div. 17. BYSSISEDÆ. 
215. S. Guss, Berkel. and Currey MS. Tas. LVII. fig. 1, ascus with sporidia, x 220. 
Sporidia biseriate, pale brown, simple, slightly curved, 0:0009 to 0-001 inch long, 
rounded at each end. Perithecia rather large, round and very flat, seated on a dense 
subiculum, usually entirely hidden beneath the bark, not erumpent, but raising the 
bark into smooth, rounded, or elongated swellings; the perithecia and subiculum 
are usually of a dark dirty green tinge. I do not know where to classify this plant, 
if not with the Byssisedæ, although it is quite anomalous to find a Spheria of this 
division entirely hidden by the bark. The presence of the fungus is only indicated 
_ by the smooth swelling of the small branches of oak, on which it occurs. The wood 
of these branches is generally somewhat decayed. The Spheria is common in the 
neighbourhood of Weybridge, and I have also found it near Tunbridge. It grows, as 
far as I know, only on oak, and I am not aware that it has been hitherto described. 
Some of my correspondents have received it from me under the manuscript name of 
5. tomentosa; but Mr. Berkeley, to whom I sent it at first without a name, marked 
it in his herbarium as Spheria Glis, and at his request I have adopted that name. 
216. S. Desmazrert, Berk. and Br.; Ann. & Mag. Nat. Hist. 2 ser. vol. ix. p. 318. pl. 9. 
fig. 1. Tan. LVII. fig. 2, ascus with sporidia, and free sporidia, x 325. Sporidia - 
uniseriate, overlapping, dark brown when ripe, with globular and irregularly -shaped 
nuclei, subeymbiform, somewhat flexuous, 0:0013 inch long. 
217. S. (NECTRIA) ROSELLA, A.and S.; Fr. S. M. ii. p.441. Tas. LVII. fig. 3, sporidia, 
X 325. Sporidia fusiform, slightly constricted in the middle, colourless or greenish, 
_ with the endochrome bipartite, 0-0010 to 00012 inch long. 
218. 8. AQUILA, Fr. 8. M. ii. p.442. Tam. LVII. fig. 4, sporidia, x 325. Sporidi& 
dark brown, almost opaque, almond-shaped or subeymbiform, or oblong and slightly 
curved, sometimes with one, two, or three nuclei, 0:0006 to 0:0008 inch long. 
219. S. TRUNCATA, Sz.; Fr. S. M. ii. p. 442. Apparently not distinct in any material 
respect from S. aquila, Fr. ; | 
220. S. FULVA, Fr. EL ii. 90. Tas. LVIL fig. 5, asci with sporidia, and free sporidia, 
X 325. Sporidia biseriate or crowded, oecasionally uniseriate, colourless, broadly 
almond-shaped, sometimes subeymbiform, 0-0004 to 0-0005 inch long; endochrome 
bipartite, sometimes continuous. d 
221. 8. (Nzcrrna) AURANTIA, Pers.; Er. S. M. ii. p.440. Ta». LVII. fig. 6, ascus with 
Sporidia, and free sporidia, x 395. Sporidia uniseriate, colourless or greenish, 
almond-shaped or flexuous, 0:0006 to 0-0008 inch long ; endochrome bipartite. On 
