SHEAR: NEW SPECIES OF FUNGI 311 
Type, wo. 1446 C. L.S., on old fruit of Crataegus punctata 
_ lying on the ground, Department of Agriculture grounds, Wash- 
ington, D. C., December 20, 1902. The surface of the fruit is 
entirely covered with the thin black stroma. 
Plagiorhabdus Oxycocci sp. nov. 
__ Pycnidia scattered, mostly hypophyllous, irregularly depressed- 
globose, embedded in the tissue of the host, 125-190 » diameter, 
usually very slightly erumpent with the upper portion mostly cov- 
ered by a thin, dark, stromatic layer consisting of the modified 
epidermis ; wall rather thin below and interior subsimple, or some- 
times having a few irregular chambers uniting and opening through 
a single ostiole which is usually rather prominent ; spores hyaline 
or faintly greenish-yellow in mass, slightly curved or allantoid, 
8-10 x 3 yw, bearing a slender basal appendage consisting of the 
sporophore which is abstricted near its base ; appendage I0-I5 x 
0.75 f. 
Type, xo. rggo C. L. S., on leaves of dying cranberry plant, 
Vaccinium macrocarpum, Carver, Massachusetts, May, 1906, H. Je 
Franklin, coll. This species differs from P. Crataegi in its smaller, 
scattered, more simple pycnidia with thinner walls and poorly 
developed stromatic crust. 
Leptothyrium Oxycocci sp. nov. 
Pycnidia black, dimidiate, amphigenous, scattered, subcoriace- 
ous, irregularly subglobose, 160-250 « diameter, arising just be- 
neath the epidermis, sometimes becoming superficial or subsuper- 
ficial and collapsing, rupturing irregularly and frequently breaking 
away about the base, exposing the spore-mass; wall somewhat 
irregular in thickness, especially at the apex, composed of parallel, 
elongate cells ; spores subfusoid, hyaline, sometimes slightly curved, 
Pseudoseptate, 10-15 x 2.5—3 4, borne on simple, slightly taper- 
ing sporophores, slightly exceeding the length of the spores. 
Type, no. 1487 C. L.§S., on dead leaves from diseased vines of 
Vaccinium macrocarpum, near Wareham, Massachusetts, May 22, 
1906, H. J. Franklin, coll. ; also from Pierceville, Massachusetts. 
Rhabdospora Oxycocci sp. nov. 
_ Pycnidia usually hypophyllous, scattered, buried, more or less 
regularly depressed-globose, somewhat erumpent, greatest diam- 
eter 150-225 w; ostiole small, plane, perforate ; wall eae 
branous, consisting of two layers, the inner sometimes separate 
