MR. F. CURREY ON THE FRUCTIFICATION OF COMPOUND SPHÆRLÆ. 275 
almost equal propriety; but the ostiola are somewhat elongated, and the perithecia 
immersed in the matrix. Eventually, however, the bark is thrown off, and the peri- 
thecia form rough, naked, scabrous masses. A dark line often surrounds the masses 
of perithecia ; but the area it includes is very irregular, and the line itself not always 
present. It might be taken for a coarse abnormal form of S. stellulata ; but the spo- 
ridia are more than double the size of those of S. stellulata, and of a different colour. 
It is very common in this country, principally on elm. 
Div. 9. CIRCUMSCRIPTÆ. 
117. S. (VALSA) ENTEROLEUCA, Fr. S. M. ii. p. 381. Tas. XLVII. fig. 113, ascus with 
sporidia, x 325. Sporidia biseriate, colourless, oblong, acuminate at each end, con- 
stricted in the middle, often slightly curved, 4-nucleate, uniseptate (I think, but the 
septum very difficult to make out), 0:0006 to 0:0007 inch long. On Robinia Pseuda- 
cacia. Perithecia very numerous in each pustule, deeply imbedded in a very white 
stroma; when cut across horizontally, a very well-defined black line is seen, which 
arises from the wood surrounding the perithecia being blackened, thereby causing the 
appearance of the existence of a conceptaculum ; but there is not really any. I have 
received a plant from Mr. Bloxam marked as S. enteroleuca, Fr., of which fig. 114 
represents an ascus with sporidia x 325, and free sporidia more highly magnified. 
The sporidia are very numerous, crowded, brownish yellow in the mass, almost colour- 
less when single, curved, 0:0003 inch long. I suspect, from the habit of the latter 
plant upon its fruit, that it is a form of Diatrype aspera. 
118. S. (Varsa) ANOMIA, Fr. S. M. ii. p. 381; El. ii. p. 77. Sporidia (spermatia ?) 
colourless, slightly curved, very minute, about 0:0002 inch long. A very doubtful 
specimen ; but the fruit does not differ very materially from that figured in Sturm's 
* Deutschland's Flora.’ 
119. S. (VALSA) EXTENSA, Fr. S. M. ii. p. 381. Tas. XLVII. fig. 116, ascus with 
sporidia, x 325. Sporidia uniseriate, colourless, obtuse, slightly constricted in the 
middle; endochrome bipartite, smooth, and refractive, but doubtless sometimes 
granular. 
120. 8. (Varsa) DETRUSA, Fr. S. M. ii. p. 382. Tas. XLVII. fig. 117, ascus with spo- 
ridia, x 325, and a free sporidium, x 450. Sporidia biseriate, colourless; endochrome 
divided into four, sometimes apparently into only two portions, elliptie, subobtuse or 
subacuminate at the ends ; 0:0006 inch long. 
121. S. (VALSA) PmvasrRI, Pers.; Fr. S. M. ii. p. 980. Sporidia biseriate, almost 
colourless, but brownish yellow in the mass; minute, curved, 0:0003 inch long. 
Hardly distinguishable from the fruit of Diatrype stigma. 
122. S. (Vasa) CARPINI, Pers.; Fr. S. M. ii. p. 384 Tas. XLVII. fig. 118, sporidia, 
x 325. Sporidia curved, colourless, highly refractive, 00006 to 0-0008 inch long. 
There is another specimen in the Herbarium, marked SpA. Carpini; but as the 
sporidia are just like those of Spå. syngenesia, it probably belongs to the latter 
Species. 
123. S. (VALSA) SYwGENEsIA, Fr. S. M. ii. p. 382. Tas. XLVII. fig. 119, sporidia, x 
' VOL. XXII. 20 
