MR. F. CURREY ON THE FRUCTIFICATION OF COMPOUND SPHÆRLÆ. 261 
matrix, not circumscribed (as in the Lignosæ) with a black line. Perithecia vertical, irregularly 
scattered through the stroma, their necks at first included in it, but at length exserted. 
Div. 8. CoNCRESCENTES.—Stroma thin effused, indeterminate, never cireumscribed, innate, not 
erumpent, formed from the matrix or from the confluence of the perithecia. Perithecia subglo- 
bose, vertical, irregularly aggregated, at first solitary, then confluent, emergent, attenuated into 
a short neck. No erumpent disk. 
SECTION III. AMPHIPHERICÆ.—Perithecia with elongated necks, convergent, circinating, surrounded 
by a spurious pustulate stroma. 
Div. 9. Cıroumsckıpr2.—Stroma formed from the matrix, more or less rounded, included in a 
proper black ventricose conceptaculum which is compressed at the apex. Perithecia scattered in 
the stroma, irregularly circinating, decumbent, with rather long, converging, ultimately umbili- 
cate necks, bursting out from the conceptaculum. 
Div. 10. Incusa:.—Stroma formed from the matrix, rounded, included below in a proper open 
dimidiate conceptaculum, covered above with the subcomate epidermis, through which it bursts, 
forming a somewhat waxy, more or less flat disk. Perithecia collected in the centre of the 
stroma, irregularly circinating, their necks perforating the disk, but less protruded than in the 
former tribe. 
Div. 11. OBVALLATÆ.— Stroma cortical without any proper conceptaculum. Perithecia immersed 
in the inner bark, collected in a circle; ostiola collected into a disk. 
Div. 12. CIRCINATÆ.— Stroma none, or formed of the corroded matrix. Perithecia covered, simple, 
aggregated, arranged in a circle, more or less decumbent. Necks of the perithecia elongated, 
united, and perforating the epidermis, at length free. No conceptaculum or heterogeneous 
disk. 
SECTION IV. Erirnericæ.—Perithecia naked, destitute of a neck, collected upon a stroma (which is 
often spurious) at first covered by the matrix. 
= Div. 13. Cæsprrosæ.—Stroma rounded, determinate, convex. Perithecia superficial, simple, free, 
without elongated necks. 
Div. 14. CoxrLuENTES.—S/roma thin rounded or effused, indeterminate, innate, arising principally 
from the confluence of the perithecia. Perithecia simple, connate, at first innate, then erum- 
pent. 
Div. 15. SgR1ATA.— Sfroma thin, effused, indeterminate, formed from the corroded parenchyma of 
the matrix, sometimes altogether wanting. Perithecia seated on the stroma, covered at first 
with the adnate epidermis, at length almost naked, disposed in parallel rows, often connate ; 
ostiola short. ; 
Div. 16. Conrerræ.—Stroma when present effused, formed from the parenchyma of the leaf, more 
often wanting. Perithecia aggregate, nestling under the epidermis of dead or dying leaves. 
sm. the ‘Summa Vegetabilium Scandinaviæ,’ the Sphæriæ included in the above divisions 
are thrown into distinct genera, the main characters of which, such of them at least as 
include the plants to which this paper relates, are given in that work as follows :— 
1. Corpycers.—Stroma vertical, clavate or capitate, fleshy; perithecia pale-coloured ; sporidia very 
numerous, arranged in moniliform rows. e. i 
2. XYLARIA.—Stroma vertical, clavate, between fleshy and corky, or leathery ; perithecia horny, black; 
at first immersed in the stroma. Sporidia eight in an ascus, usually uniseptate*. 
* This last character is by no means to be relied on; the sporidia are very frequently not septate. They have 
sometimes two nuclei, and when these latter are large and close to one another, there may be an appearance of a 
septum where none really exists. 
TES 2x2 
