A.pr., May, 1883.J 
HYPOXYLON AND NUMMULARIA. 
.43 
IIypoxylon teres, Schw.—Syn. N. Am., No. 1178. On bark. Lo¬ 
cality unknown. “Pulvinate, subterete-cylindrical, apex obtuse, rounded, 
surface tuberculose-undulate, rust-colored; stroma sooty black, sur¬ 
rounded and roughened by the immersed peripheric perithecia. The 
cylindrical, pulvinulate, scattered stromata are about three lines high and 
H lines thick. In some respects allied to II. rubiginosum .” 
IIypoxylon malleolus, B. & Bav.—Grev., IV, p.49. On oak trees. 
Carolina (Ravenel); Florida (Dr. Martin, Calkins and Rau.) Stroma glo¬ 
bose, sessile, II cm. in diameter, black, ornamented by the papillose 
ostiola, each sunk in a shallow, circular depression about I mm. across. 
A vertical section of the stroma shows the same radiate-fibrous, subzon- 
ate structure and shining black color seen in II. Howeianum. Perithecia 
peripheric, oval or elliptical in outline, forming a layer about 1 mm. thick, 
which readily separates from the inner mass of the stroma. The asci 
(which appear to be evanescent) have, in our specimens, disappeared, 
but there is an abundance of brown, fusoid, nearly straight sporidia, 
18—22 x 3—31 ends subobtusg. 
IIypoxylon coiuERENS,(Pers.^)-Syn., p. 11. On bark of beech. 
Carolina (Ravenel); N. Y. (O. F. Cook); Penna. (Rau.) Stromata erum- 
pent-superficial, depressed-globose, about 2 mm. in diameter, continu¬ 
ously connate over a space of three or more centimeters across, of a dirty 
black color ; perithecia mostly only 6—10 in a stroma, rather large and 
distinctly prominent, with papilliform ostiola; asci cylindrical, spore¬ 
bearing part about 22 x 6 ! J -\ sporidia uniseriate, short-navicular, brown, 
9—11 x 4—5 l J - (12 x 6 A Sacc.) The foregoing description is from the 
specimens in Rav. Car., Ill, No. 48. The conidial hymenium which 
clothes the young stromata is of a pale clay color, becoming cinereous; 
conidia obovate-subglobose, very small. The species is widely diffused 
and is found also on oak, JSfyssa and maple. A small form, var. minor , is 
mentioned on decaying Polyporus in Borneo. In the old and blackened 
state, this species resembles outwardly some forms of II coccineum , 
Bull., from which it differs in its smaller connate stromata and larger 
perithecia and in the different color of the young stroma. 
Hypoxylon Murraym, B. & C.-Grev., 1. c. On dead bark. Mas¬ 
sachusetts (Murray). “Gregarious, subglobose, a line or more broad, 
black without and within, densely papillose with the minute ostiola. It 
resembles externally H. bomba , Mont., except the densely papillose sur¬ 
face.” Sporidia sec. Cke. in Grev., XI, p. 123, 13—15 x 5—7 y. 
IIypoxylon glomiforme, B. & C.—Grev., 1. c. On bark of Quer- 
cns nigra , Connecticut (Wright). “Gregarious, hemispherical, nearly I 
inch wide, at first clothed with ferruginous powder, then black and shin¬ 
ing, even; perithecia hidden without any external trace of ostiola; stro¬ 
ma dark brown.” Sporidia sec. Cke., Grev., I. c., 14—15 x 31 y. 
Hypoxylon turbinulatum, Schw.—Syn. N. Am. On beech wood, 
Mt. Pocono, Pa. (Schweinitz). “Turbinate-pulvinate, applanate, subcon- 
