ST R OM A TO S PHÆ R IA f l a v o - v i r e n s .
Black and Green Sphoeria.
C l a s s a n d O r d e r CRYPTOGAMIA PUNGI, imn—N a t , O r d . H YPO X Y LA .
De Cand.
GENERIC CHARACTER.
Receptaculum vanum, sessile, liberum vèl erumpens. Perithecia omnino latentia
vel we exserto; inlus massa gelatinosa sporidifera instructa.
Receptacle Various, sessile, free or bursting through the bark. Perithecia
concealed, or furnished with a prominent orifice ; filled with a gelatinous
sporidiferous mass.
SPECIFIC CHARACTER.
STROMATOSPHÆRIA flavo-virens ; inoequalis, rugosa, nigra, intus pulverulenta,
Jlavo-vifens, peritheciis suhglohosis, ostiulis prominulis rotundatis.
St . unequal, rugose, black, pulverulent and yellowish-green within ; perithecia
subglobose, their orifices somewhat prominent and rounded.
STROMATOSPHÆRIA multiceps, Grev. FI. Edin. p. 356.
S p h æ r ia flavo-virens, Pers. Syn. Fung. p. 22.—Alb. et Schmein. p. 10.—De
Cand. FI. Franç. v. 6. p. 121 .—Fries, Scler. Suec. Exsicc. No. 222.—
Schmidt et Kunze, Exsicc. No. 201.—Moug. et Nestl. St. Cr. Exsicc.
No. 375.—Fries, Syst. Myc. v. 2. p. 357-
S p h æ r i a fla v o -v ire s c e n s , Hoffm. Veg. Cr. 1. p . 10. t. 2 . f. 4.
S p h æ r i a m u ltic e p s . Sow. Fung. t. 39 4 . f. 8.—Fries, Scler. Suec. No. 4 5 .—
Purt. Midi. FI. V. 2. p . 71 4 .
H ab. On dead branches of trees, frequent in Scotland and England.
A very variable plant in external appearance, sometimes two or three lines
in breadth, distinct, and roundish, or at other times as if a number of
small masses had become confluent, and produced an irregular rugose
surface of an inch or more in extent, rough with the somewhat prominent
orifices of the perithecia. Sometimes, again, the whole is either-
seated on the outside of the bark, or bursting through it ; or, when
the bark is previously removed, it sometimes happens that the plant is
partly innate, or immersed in the substance of the wood itself, and in
such cases has a more even external surface, and is less conspicuously
dotted with the perithecial orifices. The colour is more or less black
without, b u t within it is yellow-green, and the substance is pulverulent.
Perithecia ovate or roundish, black, with a somewhat exserted,
rounded orifice.
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