32 NORTH AMERICAN FLORA [VoLUME 3 
ing ; asci cylindric, originally with 8 spores, each of which separates into 2 subglobose or 
slightly cuboid cells, at maturity 16-spored ; spores hyaline. 
Type species, Sphaeria rufa Pers. 
Stromata patellate, with definite outline, for the most part on wood and bark. 
Stromata dark-colored: dark-red, brown, or purplish-black. 
Stromata red or brown. 
Stromata reddish-brown or dark-brown. 
Stromata wine-colored or dark-red. 
Stromata purplish-black or olive. 
Stromata purplish, large, 0.5-1 cm. in diameter. . HX. lenta. 
1. A. rufa. 
2 
3 
Stromata olivaceous, small, 1-2 mm. in diameter. 4. H. minima. 
5. 
6 
. A. scutellaeformis. 
Stromata bright-colored: whitish or bright-yellow. 
Stromata whitish. 
Stromata bright-yellow. 
Stromata effuse, spreading irregularly, with no definite outline. 
Occurring on wood and bark. 
Stromata very dark-olivaceous. 
Stromata bright lemon-yellow. 
Occurring on fungi. 
Stromata bright-colored. 
. . chionea. 
. HI. patella. 
HI, olivacea. 
. H. sulphurea. 
2m 
Stromata orange, on Zyromyces. 9, H. aurantiaca, 
Stromata lemon-yellow, often fading. 10. A. cttrina. 
Stromata pallid or whitish. 
On Tyromyces. ll. AY. pallida. 
Forming rings on cups of Cyathus. 12. H. latizonata. 
On Corticium. 13. H. corticiicola. 
1. Hypocrea rufa (Pers.) Fries, Summa Veg. Scand. 383. 1849. 
Sphaeria rufa Pers. Obs. Myc. 1: 20. 1796. , 
? Sphaeria Stereorum Schw. Trans. Am. Phil. Soc. II.4: 191. 1832. 
? Hypocrea Stereorum Berk. & Curt.; Berk. Grevillea 4: 14. 1875. 
Stromata gregarious, subhemispheric to patellate, occasionally confluent and more or 
less irregular but normally quite regular in form, 2 mm. to 1 cm. in diameter (mostly 2-5 
mm,), externally brick-red, the margin in young specimens white, later becoming brown 
and in old specimens often free, becoming darker with age, the surface of the stroma rough- 
ened by the necks of the perithecia which protrude slightly; perithecia nearly globose, 
175-200 in diameter; asci cylindric, 75-100 X 5 (spore-bearing part 60-75); spores 
nearly globose, hyaline with a central oil-drop. 
On wood and bark of various kinds and occasionally on old fungi. 
TYPE LOCALITY: Europe. 
DISTRIBUTION: Maine to North Dakota and South Carolina; probably occurs throughout 
North America; also in Europe. 
vara Rab. Krypt. Fl. 12: pl. 89, f. 1-3; E. & P. Nat. Pfl. 1): f. 247, A-D; Mycologia 
2: pl. 20, f. 6-8. 
feet Ellis, N. Am. Fungi 257; Ellis & Ev. N. Am. Fungi 1552 ; Rav. Fungi Car. 5: 53. 
2. Hypocrea scutellaeformis Berk. & Rav.; Ellis & Ev. 
N. Am. Pyrenom. 80. 1892. 
Stromata gregarious, patellate or subhemispheric, 0.5-1 mm. in diameter, with the 
margin free and slightly undulate, roughened slightly by the protruding necks of the peri- 
thecia, externally beautifully wine-colored, becoming darker with age, occasionally blackish, 
internally white ; asci not known. 
On the bark of Acer rubrum I. 
TYPE LocaLity: [South] Carolina. 
DISTRIBUTION : Known only from the type locality. 
EXSICCATI: Rav. Fungi Car. 4: 72. 
3. Hypocrea lenta (Tode) Berk. & Br. Jour. Linn. 
Soc. 14: 112. 1873. 
Sphaeria lenta Tode, Fungi Meckl. 2: 30. 1791. 
Sphaeria Schweintizit Fries, Elench. Fung. 2: 60. 1828. 
Sphaeria rigens Fries, Elench. Fung. 2: 61. 1828. 
Sphaeria sublobaia Schw. Trans. Am. Phil. Soc, II. 4: 194. 1832. 
Sphaeria contorta Schw. Trans. Am. Phil. Soc. II. 4: 194. 1832. 
?Hypoxylon Galeottianum Kickx, Bull. Acad. Brux. 82:77. 1841. 
Hypocrea contoria Berk, & Curt.; Berk. Grevillea 4: 14. 1875. 
