48 NORTH AMERICAN FLORA [VorumE 3 
1. Typhodium typhinum (Pers.) Seaver, Mycologia 2: 86. 1910. 
Sphaeria lyphina Pers. Ic. Deser. Fung. 21. 1798. 
Sphaeria spiculifera Sow. Engl. Fungi pL. 274, 1800. 
Dothidea typhina Fries, Syst. Myc. 2: 553. 1823. 
Stromata effuse, subfleshy, at first pale, becoming bright-orange, forming sheaths 2-5 
cm. in length, about the stems of various grasses; conidia ellipsoid, hyaline, 4-5 & 34; 
perithecia thickly scattered, partially to entirely immersed, soft, membranaceous, similar in 
color to the stroma, with a rather prominent ostiolum ; asci cylindric, very long, 8-spored ; 
spores nearly as long as the ascus, in a close fascicle, about 2u in diameter, many-septate. 
On living grasses, of various genera. 
TYPE LOCALITY: Europe. 
DISTRIBUTION : New York to Washington and Mexico; also in Europe. 
ILLUSTRATIONS: Grev. Scot. Crypt. Fl. #/. 204; Pers. Ic. Deser. Fung. fl. 7, 7.1; Sow. 
Engl. Fungi £1. 274; Mycologia 2: pi. 20, f. 17-18. 
x ag yaaa Ellis, N. Am. Fungi 183; D. Griff. W. Am. Fungi 29, 185; Wilson & Seaver, 
scom. ° 
15. HYPOCRELLA Sacc. Michelia 1: 322. 1878. 
Stromata patellate or effuse, bright-colored, often becoming darker with age, fleshy ; 
perithecia immersed or with the necks slightly protruding; asci cylindric, 8-spored ; 
spores filiform, often many-septate and occasionally separating into segments. 
Type species, Hypocrea discoidea Berk. & Br. 
1. Hypocrella Tamoneae Earle; Seaver, Mycologia 2: 87. 1910. 
Stromata scattered, hypophyllous, 1-1.5 mm. in diameter, black (at least in aged speci- 
mens), suborbicular, crust-like, superficial; perithecia crowded, prominent, finally collaps- 
ing, 200-150 in diameter; ostiola perforate, large, somewhat irregular; asci cylindric, 
short-stipitate, 80-100 X 7-8; spores thread-like, very slender, equaling in length the 
ascus, spirally coiled, about 80 < 0.75; paraphyses numerous. 
On living leaves of Tamonea sp. 
TYPE LOCALITY: Porto Rico. 
DISTRIBUTION : Known only from the type locality. 
DOUBTFUL AND EXCLUDED SPECIES 
Flypocrella atramentosa (Berk. & Curt.) Sacc. Michelia 1: 323. 1878. This is Dothi- 
dea atramentosa (Berk. & Curt.) Atk. 
fiypocretla phyllogena (Mont.) Speg. Anal. Soc. Ci. Argent. 12: 216. 1881. Hypocrea 
phyllogena Mont. Ann. Sci. Nat. TI. 13: 340. 1840. Reported from Guadeloupe by Duss; 
aspecimen from the herbarium of Patouillard is sterile. 
Hypocrella Sloaneae Pat.; Duss, Enum, Champ. Guad. 80. 1903. On the under sur- 
face of leaves of a Sloanea. 
16. CORDYCEPS (Fries) Link, Handb. 3: 347. 1833. 
Sphaeria § Cordyceps Fries, Syst. Myc. 2: 323. 1823. 
Torrubia Lév.; Tul. Fung. Carp.3: 5. 1865. 
Stromata springing from a sclerotium or resting stage composed, usually, of compact 
mycelial tissue within the bodies of insects or more rarely in other fungi, simple or 
branched, at first (/sarvza stage) often delicate, producing conidia, later usually clavate, 
producing perithecia, which are usually more or less immersed or more rarely subsuper- 
ficial, usually collected into a globose, clavate, or agariciform head supported by the sterile 
stem, sometimes surmounted by a sterile apex;easci cylindric, 8-spored; spores filiform 
or subfiliform, many-septate, and often breaking into segments in the ascus, or more rarely 
simple and entire. 
Type species, Clavarta militaris L. 
