212 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
CYNOSURUS. Dog's Tail Grass. 
C. CRISTATUS L. — Occasional in grass land. Lenox; Stockbridge. 
DACTYLIS. Orchard Grass. 
D. GLOMERATA L. ORCHARD Grass. — In shade aVjout houses, 
along roadsides, in open woodland; common. 
DANTHONIA. Wild Oat Grass. 
D. compressa Aust. — Dry open woods, rocky summits and upland 
pastures ; frequent. 
D. spicata (L.) Beauv. White Top. — Meadows, pastures and 
rocky hillsides, chiefly in poor soil; common, especially on the upland. 
DESCHAMPSIA. 
D. caespitosa (L.) Beauv. — Borders of mowing-fields, Whitney 
Place, Washington; Lenox. 
Appears to have been introduced with grass seed. 
D, flexuosa (L.) Trin. Common Hair Grass. — Rocky woods, 
especially on exposed ledges; common in the valley. On Greylock 
almost to the summit. 
DIGIT ARIA. Finger Grass. 
{Syntherisma 111. Fl. ed. 2.) 
D. filiformis (L.) Koeler. — Sandy soil; locally common in the 
southern part of Sheffield. 
D. IscHAEMUM Schreb. ex Muhl. — (D. humifusa Man. ed. 7; vid. 
Rhodora, 18: 231, 1916.) 
Dry sterile soil, fields, roadsides; common. 
D. SANGUiNALis (L.) Scop. Crab Grass. — Waste and cultivated 
ground; common. 
ECHINOCHLOA. 
E. Crusgalli (L.) Beauv. Barnyard Grass. — About barnyards 
and on muddy shores; common. 
E. FRUMENTACEA (Roxb.) Link. — Cultivated ground, Stockbridge; 
roadside, Great Barrington; cultivated ground, Sheffield. First 
noted in 1920. 
