14 NORTH AMERICAN FLORA [VoLuME 3 
ostiolum, 150-175 » in diameter ; asci cylindric, 65-80 X 8-12 4“; spores varying from fusi- 
form to cylindric or clavate, Seiaignt or curved, with the ends usually acute, hyaline or 
very pale-yellow, 7-10-septate, 35-50 < 3-3.5 BS; paraphyses short, indistinct. 
On old fungi, especially Diatrype. 
TYPE LOCALITY: South Carolina, 
DISTRIBUTION: Newfoundland and Ontario to South Carolina ; also in Europe. 
ILLUSTRATION: Ellis & Ev. N. Am. Pyrenom. #/. 15, f. 1-3. 
2. Ophionectria cylindrothecia Seaver, Mycologia 1: 70. 1909. 
Tubeufia cylindrothecia Hohnel, Sitz.-ber. Akad. Wien Math.-Nat. 1181: 1479. 1909. 
Perithecia gregarious or scattered, cylindric to clavate or fusoid, tapering below into a 
stem-like base, also tapering above, yellowish, translucent, nearly smooth, rather hard 
when dry, often with a few septate, hair-like mycelial strands near the base, naked above, 
125-150 X 275-300 # ; asci cylindric or clavate, 100-125 12-15; spores apparently enclosed 
in a separate membrane within the ascus, so that the outer wall of the ascus stretches 10-20 # 
beyond the apex of the spore-cluster ; individual spores tapering toward each end, hyaline 
or very slightly yellowish, 7-12-septate, 60-75 5“; paraphyses present, indistinct. 
On old cornstalks, Zea Mays L. 
TYPE LOCALITY; Ohio. 
DISTRIBUTION : Known only ay the type locality. 
ILLUSTRATION: Mycologia 1: pl. 4, f. ¢. 
DOUBTFUL SPECIES 
Ophionectria Theobromae Pat.; Duss, Enum. Champ. Guad. 81. 1903. 
Torrubiella rubra Pat.; Duss, Enum. Champ. Guad. 81. 1903. 
8. MELANOSPORA Corda, Ic. Fung. 1: 24. 1837. 
Perithecia superficial, without stroma, globose-pyriform, with a long neck, usually 
clothed at the tip with a fringe of hairs, and.the entire perithecium often hairy ; asci broad- 
clavate, 4~8-spored ; spores simple, colored, brown or brownish-black. 
Type species, Melanospora Zamiae Corda. 
Spores small, 10-12 x 9-10 #. 1. M. chionea., 
Spores large, 20-33 “ long. 
Spores ellipsoid. 2. M. Townei. 
Spores cuboid. 3. Mf. Poae. 
1. Melanospora chionea (Fries) Corda, Ic. Fung. 1: 24. 1837. 
Ceratostoma chioneum Fries, Obs. Myc. 2: a 1818. 
Sphaeria chionea Fries, Syst. Myc. 2: 446. 1823. 
Perithecia gregarious or scattered, yee clothed with a dense covering of white 
hairs, with a light-colored beak up tol mm. long and 100 in diameter, clothed with a few 
hairs at the apex; hairs which clothe the perithecia 34 in diameter, septate, long and 
flexuous ; asci evanescent, obovoid-clavate, stipitate, 35-40 13-16, 8-spored; spores 2- 
seriate or irregularly crowded, globose-ellipsoid, brown, 10-12 * 9-10 4. 
On decaying pine leaves and more rarely on leaves of deciduous trees. 
TYPE LOCALITY: Europe. 
DISTRIBUTION: Ontario; also in Europe. 
ILLUSTRATIONS: Fries, ‘Obs. Myc. pl. 7, f. 2; Corda, Ic. Fung. 1: p1.7, f. Hee ae & Ev. 
N. Am. Pyrenom. £1. 14, f. 1S; Rab. Krypt. Fl. 12: 85. % 1-3; Mycologia 1: pl.4 AI 
2. Melanospora Townei D. Griff. Bull. Torrey Club 26: 434. 1899, 
Perithecia superficial, scattered, thin, membranaceous, transparent, globose, covered 
uniformly with long, straight or slightly wavy, irregularly outlined hairs, and surmounted 
by a cylindric beak which terminates in a loose aggregation of straight or slightly wavy 
hairs of unequal length, white turning to light transparent umber and finally black, 225- 
300 in diameter ; beak about equal in length to the diameter of the perithecium and 60 
in diameter ; asci very evanescent, broadly clavate to ovoid, short-stipitate, 30-40 60-75 », 
