19 
SYNOPSIS OF NORTH AMERICAN SPECIES OF NUMMULARIA AND 
HYPOXYLON. 
By J. B. Ellis and Benj. M. Everhart. 
[Continued from page 113, Yol. IV.] 
Nummularia. Tul. Sel. Car]). n, p. 42. Stroma orbicular, cup-shaped 
or discoid, becoming black, marginate, the margin more or less dis¬ 
tinctly sterile. Peritbecia mouosticbous, peripheric, immersed. Asci 
cylindrical, 8-spored. Sporidia uniseriate, subelliptical, contiuuous, 
dark. The genus is too closely allied to Hypoxylon, especially tbe 
discoid forms. 
A.—STROMA, CUP SHAPED OR CONCAVE. 
Nummularia discreta (Sciiw.), Tul. Sel. Carp., ir, p. 45 Sphceria 
discreta , Sckw., Syu. N. Am., 1249. On dead branches and trunks of 
Finis Alalus and Amelanchier Canadensis , Newfield, N. J., on tbe first- 
named host, New England (Farlow), New York (Peck). On Gleditschia 
triacanthos , Ohio (Morgan), found also (Sacc. in Syll.) on Sorbiis, Ulmus, 
Cercis, and Magnolia, Stroma erumpeut, orbicular, 2-4 mm . diameter; 
cup-sliaped, with a thick raised margin; dirty ciuerous, then black, tbe 
concave surface at first white-punctate from tbe minute puuctiform os- 
tiola which iu tbe mature state are scarcely visible. Tbe wood beneath 
tbe stroma is marked with a black circumscribing line. Peritbecia 
mouosticbous, ovate-cylindrical, nearly l mm . long, rather abruptly cou- 
tracted above into a short neck, their rounded bases penetrating to the 
bottom of tbe stroma. Asci cylindrical, 110-120/1 by 10-12 ju. with long 
filiform paraphyses. Sporidia subglobose, nearly hyaline at first, finally 
opaque, 10-12 diameter. Sec. Cooke, Grev. xn, p. G, tbe specimen of 
Sphceria discincola , S3hw., in tbe Kew Herbarium, figured by Currey in 
Linn. Trans. 1858, PI. 47, fig. 10 >, does not differ from S. discreta , Schw., 
but tbe S. discincola Schw. in Syn. Car. No. G3, and in Fr. S. M., p. 368, 
appears to be different, as may be inferred from tbe following descrip¬ 
tion taken from Fries. 
S. discincola Schw., Syn. Car. No. 63. Emersed-superficial, peritbecia globose, 
crowded, black, truncate-annulate, covered with a cinereous wliite furfuraceous coat. 
Stroma irregular, subrotund, rugose, tbin, penetrating deeply into tbe blackened 
wood. Peritbecia scattered, ratber large, urceolate, narrowed above into a minute 
round moutb, wbicb is closed by white farinaceous matter. On the cut surface of 
trunks of apple trees in Carolina; rare. 
Nummularia repanda (Fr.), Sphceria repanda , Fr. S. M , n. p. 34G 
A 7 , pezizoides , E. & E., Bull. Torr. Bot. Club, XI, p. 74. On bark, 
Ottawa, Canada (Macoun.), on bark and wood, Topeka, Kans. (Cragin), 
and on bark of Ulmus Americana , Missouri (Demetrio). Found in 
Europe on branches and trunks of Sorbus aucuparia. Stroma erumpeut- 
