70 
JOURNAL OF MYCOLOGY. 
✓ 
[Von. TV, No 
together, but a section shows that they are joined (below) in a common 
stroma which, on the outside, is black. The surface is uneven, granu- 
lose and punctate-rugose from the slightly prominent perithecia, which 
have their apices truncate with an obtusely subconic ostiolum immersed 
below in a grumose, bright ochraceous-red stroma of varying thickness. 
The perithecia themselves are oval or irregular in shape, consisting of an 
outer bark or shell enclosing the shining black ascigerous nucleus. The 
colored stroma is always present even when reduced to the simplest form 
enclosing but a single perithecium; sporidia 12 x 5 ! J - (sec. Cooke in Grev., 
XI, p. 125). 
IIypoxylon smilacicolum, Howe.—Bull. Torr. Bot. Club, VI, p. 81. 
“Small, black, roundish or elliptical, irregular when confluent, pulvinate; 
perithecia subglobose; asci cylindrical or subclavate ; spores brown, sub- 
cymbiform, 15—20 x 74 usually with several nuclei. On dead stems of 
Smilax. The spores are rarely elliptical at maturity but sometimes 
pointed at both extremities.” 
IIypoxylon Sassafras, Schw.—Syn. Car., No. 87. Perithecia large 
(14 mm.), the internal cavity nearly one ram. in diameter, occurring 
either single and quite evenly scattered over thb matrix or loosely aggre¬ 
gated in clusters or groups of 3—8 perithecia standing side by side, their 
bases united in a thin stroma of a dirty brownish-black outside and rusty 
yellow within, with 4—4 their upper part free, subtruncate above with 
a minute papilliform ostiolum; asci, including the slender base, 110—120 
x 4 [i\ sporidia uniseriate, oblong, pale brown, 1—2-nucleate, 7—9 x 3 /*; 
paraphyses filiform, abundant. On dead limbs and trunks of Sassafras, 
from New York to Florida and west to Ohio, mostly on the bark but also 
on the wood. 
IIypoxylon culmorum, Cke— Grev., VII, p. 51. On dead culms of 
Arundmaria. Georgia (Ravenel), Florida (Calkins), Louisiana (Lang- 
lois). Stroma convex, 2—4 mm. across, olive-gray, then black, at first 
nearly even, then tuberculose from the projecting perithecia, finally 
deciduous, appearing first as olive-gray, appressed, thin, rather indefi¬ 
nitely limited patches 2—4 mm. across, consisting of closely packed, 
erect, subsimple, brownish hyphse 15—20 x 2—24 bearing at their tips 
oblong.or ovate-elliptical hyaline conidia 4—6x2—24 /l These patches 
soon become tuberculose from the scattered incipient perithecia (3—15 in 
number), soon enclosed in the dull black stroma, whose surface is tuber- 
culose-roughened by their obtuse projecting apices. In the specimens in 
Rav. F. Am., 351, the perithecia are mostly solitary but still enclosed in 
a stroma more or less distinct. The inner cavity of the perithecia is 
3—4 mm. in diameter; asci subcylindrical, 75—85 x 8—10 /.* (p. sp.) with a 
short stipitate base and with evanescent paraphyses ; sporidia oblong- 
navicular or fusoid-navicular, mostly obliquely uniseriate, 2—3-nucleate, 
brown, 15—18 x 6 /'•. Resembles in some respects II. Sassa fras, Schw. 
(To be continued.) 
