239 
On Hicoria, Clark County, Indiana, (Van Hook); on wood and bark, 
Topeka, Kans. (Craigin), and on bark, Ottawa, Canada (Macoun); on 
bark of Ulmus americana Missouri, (Demetrio). On Sorbus aucuparia in 
Europe. 
3. Nummularia bulliardi, Tul. Plate III, Figs. 1, 2 and 3. 
Hypoxylon rummuiarium, Bull. Champ. tab. 468, fig. 4. 
Sphaeria nummularia, D. C. Flore Fr. II, p. 290. 
Sphaeria anthracina, Schm. & Kze. Mycol. Hefte 1, 55. 
Sphaeria clypeus, Schw. Syn. N. Am. 1219. 
Nummularia clypeus, Cke. TX, 507. 
Ixsic. Hl. N. A. F. 85. Rab. F. E. 2956. Rehm, Asc. 977. 
Illustrations. (See Sacc. XX, p. 202, for list of.) 
Stroma at first covered by the epidermis, soon erumpent, almost super- 
ficial and free, convex, orbicular or oval, sometimes irregular in shape or 
broadly effused, black inside and out, punctulate from the slightly promi- 
nent ostiola, clothed at first with a reddish or rusty layer of conidia. 
Perithecia rather large, ovate. black, loosely included in the packed cells of 
the stroma. Asci cylindrical with very short stalks, spore-bearing part 
115-140x7-10 microns (BE. & BE. 100-115x10 microns), with long, stout para- 
physes. Spores eight, uniseriate, elliptical, hyaline becoming opaque, 10- 
23x5-10 microns, mostly about 15-20x6-S (E. & KE. 12-15x7-9. Sacc. 12-14x9- 
10 microns. 
In the field this species is liable to be confused with certain species of 
Diatrype (Fig. 2, Plate III) but may be readily distinguished from them 
by the color of its spores. Collected in abundance in Brown, Clark, Hen- 
drieks, Monroe and Putnam counties, where it usually attacks the beech 
and more rarely the maple. Reported common on the dead trunks and 
limbs of various deciduous trees in Europe and North America. According 
to Ellis and Everhart, it occurs for the most part on eak in the vicinity of 
Newfield, N. J. 
4. Nummularia microplaca, (B. & C.) Cke. Plate IV, Fig. 4. 
Diatrype microplaca, B. & C. Journ. Linn. Soc., X, p. 586. 
Anthostoma microplacum, Sace. Syll. I, p. 298. 
Nummularia microplaca, Cke. Syn. 8387. 
= 
Exsice., Rav. Fungi Car. IV, 39. Rav. Fung. Am. 355. FE. & E. 
N. A. FE. Second Ser. 1556. 
Illus., Revue Myc. VII, (1885) tab. 52, fig. 3. 
