September, 1888.] 
NHW FUNGI. 
87 
sometimes continuous or interruptedly confluent for 5 or more cm. 
purplish rust color with a thin sterile margin at first but this gen¬ 
erally disappears leaving the margin abrupt and rounded, surface 
papillose from the slightly prominent rounded apices of the peri- 
theeia which are in a single layer, subglobose, small (£ mm.) 
numerous but not crowded so as to be much compressed, covered 
above with a thin stromatic layer which is of a dirty greenish 
yellow within, at least in the young fresh growing state, and 
finely white-punctate from the minute ostiola but both the internal 
yellow color and the white punctate ostiola finally disappear. 
Asci (p. sp.) 60—65 x 7 with a stipitate base 30—40 micr. long. 
Sporidia uniseriate, elliptical or subnavicular opake, 7—8 x 3|—4. 
The general appearance, color and mode of growth is that of II. 
rubiginosum , Pers. from which it differs in its yellow stroma, 
smaller perithecia and sporidia, nor can it be referred to any of 
the species already enumerated having the internal substance of 
the stroma yellow. The yellow stroma and smaller sporidia will 
also distinguish this from H. perforatum Schw. 
Hypoxylon miniatum, Cke. Grew VII, p, 80.— On decorticated 
wood, Florida (Calkins), Clyde, N, Y. (0. F. Cook, Jr.) Effused. 
Stroma 1 —2 cm. long, J —1 cm. wide about 1 mm. thick convex 
in the small specimens, flattened in the larger ones, margin definite 
rounded, rusty-red, lighter and brighter than in II. rubiginosum , 
black within, surface densely and rather acutely papillose from 
the projecting apices of the closely packed ovate, monostichous 
perithecia which are about J mm. long and § mm. wide. Asci 
75—80 x 7 — 8 (p. sp.), Sporidia uniseriate, short navicular, 
opake, 10—14 x 5—6. Differs from H. rubiginosum in its much 
smaller perithecia and the brighter color of the stroma. The 
sporidia are larger than stated by Cooke in Grew but our speci¬ 
mens seem to be referable to his H. miniatum as far as we can see. 
Hypoxylon Fendleri, Berk. Grew XI, p. 132.—On rotten 
wood, Venezuela, Extra limital but will probably be found in 
Central America, Effused, determinate, thick, rugose, yellow, 
finally black-brown (“atrofuscum”). Perithecia distinct, globose, 
elevated, with black papilliform ostiola. Asci cylindrical, sporidia 
narrow-elliptical, straight or somewhat curved, dark. 12—13 x 4. 
Somewhat like an effused state of H, multiforme or a thick form 
of H. rubiginosum, at length nearly black. 
Hypoxylon atropurpureum, Fr. Surnm. Veg. Scand. p, 384.— 
On bark of Tilia, Iowa (Holway). On bark, British Columbia 
(Macoun). Stroma broadly effused, continuous or interrupted, 
thin, purplish-black becoming nearly black, surface minutely 
