Part i, 1910] NECTRIACEAE 15 
8-spored ; spores crowded, olivaceous, becoming dark and opaque, ellipsoid, 15-17 # & 20- 
25, with a hyaline pore in the flat, truncate ends. 
On decaying Russian thistle (Salsola Tragus L.). 
TYPE LOCALITY : Aberdeen, South Dakota. 
DISTRIBUTION : Known only from the type locality. 
ILLUSTRATION: Bull. Torrey Club 26: £7. 365, f. 20-22. 
3. Melanospora Poae D. Griff. Bull. Torrey Club 26: 433. 1899. 
Perithecia scattered or gregarious, superficial, thin, membranaceous, white, turning 
black to opaque, prolonged above into a curved or twisted beak once to twice the length 
of the perithecium, covered with long, delicate, flexuous, sparingly septate hairs, 140- 
180 X 500-600 #; asci broadly clavate, short-stipitate, evanescent, without paraphyses, 10- 
13 X 26-30%; spores very variable, oblong or cuboid with an apical groove and often flat- 
tened parallel to it. 
On dead leaves and culms of Poa nevadensis Vasey. 
TYPE LOCALITY: Buffalo, Wyoming. 
DISTRIBUTION : Known only from the type locality. 
ILLUSTRATION : Bull. Tortey Club 26: f/. 365, f. 24-26. 
EXCLUDED SPECIES 
Melanospora lagenaria (Pers.) Fuckel, Syimb. Myc. 126. 1869. Sphaeria lagenaria 
Pers. Syn. Fung. 58. 1801. Ceratostoma lagenarium Fries, Summa Veg. Scand. 396. 
1849. Auerswaldia lagenaria Rab. Hedwigia 1: 116. 1856. 
Melanospora parasitica Tul. Fung. Carp. 3:10. 1865. Sphaeronema parasitica 1. Tul. 
Ann. Sci. Nat. IV. 8: 40. 1857. Ceratostoma biparasiticum Ellis & Ev. Bull. Torrey 
Club 24: 127. 1897. 
9. LETENDRAEA Sacc. Michelia 2: 73. 1880. 
Perithecia superficial, gregarious, ‘globose or ovoid, with a papilliform ostiolum ; asci 
8-spored, cylindric or clavate; spores ellipsoid or fusoid, 1-septate, brown. 
Type species, Letendraea eurotioides Sacc. 
1. Letendraea luteola Ellis & Ev. Proc. Acad. 
Phila. 1895: 415. 1895. 
Perithecia gregarious, 250-300 in diameter, brown, becoming black with extreme age, 
with a prominent ostiolum, entire or occasionally collapsing ; asci cylindric, 75 X54; 
spores mostly 1-seriate or partially 2-seriate above, ellipsoid, straight or slightly curved, 
becoming brown, 1-septate, scarcely constricted at the septum, with an oil-dropin each cell, 
10-12 * 4-5 #; paraphyses present, delicate. 
On rotten wood. 
TYPE LOCALITY: Ohio. 
DISTRIBUTION : Known only from the type locality. 
10. SPHAEROSTILBE Tul. Fung. Carp. 1: 130. 1861. 
Stromata (Stilbum, Atractium, Microcera) consisting of a slender stalk with a subglobose 
head or conic in form; perithecia bright-colored, membranaceous, and globose, subglobose, 
or ovoid; asci cylindric or subcylindric, 8-spored; spores hyaline, 1-septate, ellipsoid or 
subellipsoid. 
Type species, Stilbume aurantiacum Bab. 
Stromata consisting of a slender stalk with a clavate or subglobose head. 
Spores small, 10-14 x 464. 
Spores large, 22-26 X 7 #. 
Stromata conic in form. 
1 
2 
On bark. 3. S. flammea. 
On scale-insects. 4. S, coccophila. 
S. gracilipes. 
. 5. cinnabarina, 
Ss. 
