92 
JOURNAL, OF MYCOLOGY. 
[Vol. IV, No. 9, 
or even partially free, the rounded apex with distinct papilliform 
ostiolum free, with only their bases united, rarely perithecia occur 
only half as large as usual. Asci cylindrical, long pedicellate, 
with abundant long filiform paraphyses. Sporidia obliquely mon- 
ostichous, ovate, obtuse at each end, inequilateral or nearly 
straight, light brown 8—10 x 4— 5. The Erit, Columbia spec¬ 
imens agree accurately with the above description except the per¬ 
ithecia are subferruginous-pulverulent and the sporidia oblong- 
navicular. Asci 150 x 5 micr. (p. sp, 80 x 5 micr.) Clusters of 
connate perithecia (stromata) 2—5 x 2—3 mm. or interruptedly 
confluent for 2 cm. long. The specimen in Rab. F. E. 2433 has 
the perithecia more sparingly connate and black but there is no 
other difference. 
Hypoxylon serpens, (Pers.) Syn. p. 20.—Obs. Mvc. 1, p. 18. 
On decaying wood and bark of various deciduous trees. Stroma 
effused, thin, applanate, black, variable in form and size, often in 
narrow, elongated strips 2—3 mm. wide and 3—6 cm. long, but 
also in small subelliptical or irregular shaped patches 1—2 cm. 
long by \ —1* cm. wide. Perithecia subglobose, crowded, rather 
large, rounded and prominent above or rarely slightly depressed 
around the central papilla then only slightly prominent and the 
surface of the stroma not so distinctly roughened. Conidial layer 
pulverulent, cinereous, Conidia subglobose, minute, acrogenous 
on rather long, branching septate sterigmata. Asci-cylindrical, 
long-pedicellate, 75—100 micr long (p. sp.) by 6—8 micr. wide 
with-abundant paraphyses. Sporidia obliquely uniseriate, sub- 
cylindrical, rounded at the ends, oblong-cylind., subinequilateral 
or almost curved, seldom straight, becoming dark, 12—16 a 5—6. 
This is called a common and widely diffused species but as we 
have some doubt as to whether we properly understand it we 
have taken the above description from Nitschke’s Pyr. Germ. 
The specimens distributed in N. A. F. under this name agree 
better with AT. insidens , Schw. They are certainly not the typical 
form for the perithecia are small, mostly \ mm. or less and only 
slightly prominent and the sporidia are mostly only 8—10 x 3—4; 
they are however the same as those in Rav. specimens in Fungi 
Car. IV, 34, which have the stroma of the normal form. The N. 
A. F. specimens appear to be the same as the II. colliculosum , 
Schw, in Rav. F. Am. 742 both in outward appearance and in the 
size, shape and color of the sporidia which are oblong-elliptical, 
subinequilateral, pale brown, 8—10 x 3—4, though Cooke in 
Grevillea XL p. 125, says they are 12—13 x 5 micr. We have 
therefore for the present to leave the matter in doubt. 
