Part 1, 1910] HYPOCREACEAE 43 
4. Hypomyces rosellus (Alb. & Schw.) Tul. Ann. Sci. 
Nat. IV. 13: 12. 1860. 
?Sphaeria rosea Pers. Syn. Fung. 18. 1801. 
Sphaeria rosella Alb. & Schw. Consp. Fung. 35. 1805. 
Neciria rosella Fries, Summa Veg. Scand. 388. 1849. 
Nectria Albertini Berk. & Br. Ann, Mag. Nat. Hist. III. 7: 452. 1861. 
? Hypomyces roseus Fuckel, Symb. Myc. 182. 1869. 
Stromata forming an effuse subiculum often covering an area of 3-8 cm., cottony, at 
first whitish becoming rose-colored, lighter near the sterile margin; conidia ellipsoid, 
hyaline, becoming 1-3-septate; perithecia thickly scattered, darker than the subiculum, 
nearly blood-red, partially immersed in the subiculum, with the protruding ostiola acute 
or more or less obtuse, often collapsing; asci cylindric; spores 1-seriate with the ends 
overlapping in the ascus, with an apiculus at each end and a medial septum, hyaline, 
becoming slightly rough at maturity, 20-30 5x. 
On fungi, old wood, and rubbish, probably growing on the remains of decaying fleshy fungi. 
TYPE LOCALITY: Germany. 
a DISTRIBUTION: Delaware to North Dakota, Florida,-Louisiana, and the West Indies; also in 
urope. 
ILLUSTRATIONS: Alb. & Schw. Consp. Fung. /.7,f.3; Tul. Fung. Carp. 2: p2. 30, f. 6-9; 
Mycologia 2: pl. 21, f. 10. eee BEE, 
5. Hypomyces chrysospermus (Bull.) Tul. Ann. Sci. 
Nat. IV. 13: 16. 1860. 
Reticularia chrysosperma Bull. Herb. Fr. pl. 476, f. 4. 1789. 
Mucor chrysospermus Bull. Hist. Champ. Fr. 1: 99. 1791. 
Uredo mycophila Pers. Obs. Mve. 1: 16. 1796. 
Sepedonium chrysospermum Fries, Syst. Myc. 3: 438. 1832. 
HHypomyces boletinus Peck, Bull. N. Y. State Mus. 75: 15. 1904. 
Stromata consisting of a golden or lemon-yellow powdery mass which covers the 
substratum often for several cm.; conidia globose, golden-yellow, beautifully but delicately 
echinulate, 15-184 in diameter; perithecia gregarious or thickly crowded, nestling in the 
yellow subiculum, reddish or reddish-brown ; asci cylindric; spores 1-seriate with the ends 
overlapping in the ascus, fusiform, mostly curved, and becoming, when mature, slightly 
rough, 1-septate, with the septum near the basal end, dividing the spore into two un- 
equal cells, 12-15 & 4. 
On species of Boletus. 
TYPE LOCALITY : France. 
DISTRIBUTION : Connecticut to Virginia, Wisconsin, and Colorado; also in Europe. ; 
ILLUSTRATIONS: Bull. Herb. Fr. fi. 476, /.4; Tul. Fung. Carp. 3: 61.8, f. 13; Mycologia 
2: pl. 21, f. 16. : 
6. Hypomyces aureo-nitens Tul. Fung. Carp. 3: 64. 1865. 
Stromata effuse, thin, bright-golden or lemon-yellow ovérspreading the host often for a 
distance of 2 cm.; perithecia seated in the stroma, very much exserted or subsuperficial, 
thickly gregarious, often crowded, darker in color than the subiculum, ovoid; asci cylindric ; 
spores i-seriate with the ends overlapping, fusiform with the ends sharply pointed, 
1-septate, with the septum medial, slightly constricted, 15-18 K 44. 
On old fungi (Polyporus and Stereum). 
TYPE LOCALITY: Europe. 
DISTRIBUTION: Ohio; also in Europe. . 
ILLUSTRATIONS: Grevillea 11: 7. 156; Mycologia 2: pl. 21, f. 19. 
7. Hypomyces hyalinus (Schw.) Tul. Aun. Sci. 
Nat. IV. 13: 11. 1860. 
Sphaeria hyalina Schw. Schr. Nat. Ges. Leipzig 1: 30. 1822. 
? Hypomyces Van-Bruntianus W. Gerard, Bull. Torrey Club 4: 64. 1873. 
? Hyponiyces apiosporus Cooke, Grevillea 12: 80. 1884. 
Hypomyces inaequalis Peck, Bull, Torrey Club 25: 328. 1898. 
Péeckiella hyalina Sacc. Syll. Fung. 9: 945. 1891. 
Stromata effuse, almost entirely covering the host which is often undeveloped, white, 
pallid, or with a tinge of pink or brownish ; perithecia thickly scattered, immersed or par- 
