178 
Journal of Mycology 
[Vol. 8 
30-40 x 4-4J p at base, narrower above. Conidia at first cylin¬ 
drical and slightly curved, then elongated, narrowed above, 30-40 
x 3^-4 p, 4-8 septate. 
Macrosporium ornatissimum E. & B.— On living leaves of 
Sorghum vulgare, Rooks Co., Kans. Oct. 1901. 
On bleached (buff color), extensive areas of the leaf, 5-10 
cm. or more in length and often occupying the entire width of 
the leaf and separated from the green, living portion by a very 
distinct, narrow, red line. The parasite appears at first in little 
smoky-colored orbicular patches 2-3 mm. diam., soon confluent. 
Hyphae in small fascicles, 2-6 together rising from a small cell¬ 
ular base, simple, continuous or faintly 1-3 septate, soon disappear¬ 
ing. Conidia clavate, 30-60 x 12-16 p, narrowed below into a 
yellowish, transparent stipe 10-25 x 4 p, often slightly swollen 
at the lower end. Conidia 4-10 septate with several cells divided 
by a longitudinal septum, pale, yellow-brown. 
Chaetostroma graminis E. & B. — On dead leaves of some 
grass, Austin, Texas, Feb. 1901. W. H. Long, Jr. (No. 757.) 
Sporodochia convex or plane, black, round or elliptical, \- 
1 mm. diam. Bristles black, straight or slightly curved, opake, 
1 75-250 x 6-8 p . Conidia globose or subelliptical, brown, 6-9 p 
diam., about the same as in C. aterrimum (Cke.) but that species 
is described as lineate-maculate. 
Exosporium cespitosum E. & B. — On dead (birch?) limbs. 
Mackinac Island, Mich., July 1899. E. T. Harper. (No 452.) 
Sporodochia cespitose in erumpent clusters of 10-20, obo- 
vate or of irregular shape, -J-i mm. diam., rusty-brown, finally 
deciduous, subconnate, much resembling the perithecia of Hy- 
poxylon multiforme Fr., of horn-like texture and grayish-white 
within. Conidia at first globose 10-12 p diam. becoming ob- 
ovate, 50-60 x 18-20 p, brown, the plasma cuboidly divided into 
3-4 nuclei, 2-3-pseudoseptate, borne singly on simple, brown, 
1-2-septate sporophores 10-20 x 5-6 p which thickly clothe the 
surface of the sporodochia. 
Differs from the other described species in its cespitose 
growth. 
