September, 1888.] 
NRW FUNGI. 
89 
perithecia form a single layer on the surface of the black carbon¬ 
aceous 1 mm. thick stroma, and are oval in shape and closely 
packed, about J mm. high with their apices slightly projecting 
thus making the surface of the stroma finely papillose. 
Hypoxylon ianthinum, Cke. G-rev. XT, p. 132,—“Str ornate in 
ligno effuso, pulvcre ianthino ebsito, demum nigricante. Peritheciis 
stipatis, obovatis, vertice subrotundatis confluento-planisve, Os- 
tiolo minute papillato. Ascis cylindraceis. Sporidiis ellipticis, ob- 
tusis, continuis, fuscis, 15 x 6 micr. U. States, (Ravenel No. 1579.)” 
This species is evidently widely diffused in this country, as we 
have specimens collected at Bellville, Canada, by Dr. Macoun, 
Clyde, N. Y. by 0. F. Cook, Jr., and in Louisiana by Rev. A. B. 
Langlois. The Canada and La. specimens have been submitted 
to Dr, Cooke for examination and he pronounces them to 'be H, 
ianthinum Cke. of which the original was collected in Potsdam, 
N. Y ., many years ago. The name is badly chosen and mislead¬ 
ing for the stroma in all the specimens (unless it bo the Potsdam 
specimen, which is now lost or mislaid) is of a glaucous or grayish 
white, about the same as in H. atropunctatum , Schw. or II. prui- 
natum , Kl., without any purplish shade whatever. The descrip¬ 
tion above quoted applies in other respects tolerably well. Stroma 
thin elliptical or subelongated 1—-2 x \—1 cm. and in the Louis¬ 
iana specimens subconfluent, distinctly papillose. 
Hypoxylon atropunctatum, Schw. Syn. Car.No. 44.—On dead 
trunks of oak from N. Y.to Florida. Broadly effused, smooth, white, 
dotted with the smooth, convex, black ostiola and surrounded with 
a black sterile margin, substance very hard and rigid, black inside. 
Perithecia in a single layer, not crowded, ovate, about § mm. 
high. Asci cylindrical, abruptly contracted below into a short 
stipitate base,, about 150 x 10—12. Sporidia uniseriate acutely 
elliptical or almond shaped, opake, 25—30 xlO—12. ( Anthostoma , 
Sacc. Syll.) According to Schweinitz this species is sometimes 
interruptedly continuous for 20 feet along the standing trunks of 
oak (Q. falcata) which are also nearly surrounded by it. 
Hypoxylon crocopeplum, B. & C. Grev. IV, p. 49.—On de¬ 
cayed bark, South Carolina, (Ravenel). Nearly J inch broad, 
irregular, depressed, clothed with a dense coat of red ferruginous 
(peroxyd) powder; perithecia rather prominent, with a minute 
ostiolum. Sporidia dark, shortly cymbiform, 13—14 x 8 (Sec. 
Cooke 1. c.) 
b. Externally black. 
Hypoxylon stigmateum, Cke. Grev. VT1, p. 4, —On bark of 
dead oak, California (Harkness). On beech bark, Ohio (Morgan 
