The Manual of the Botany of the Northern United States / Including the District East of the Mississippi and North of North Carolina and Tennessee

by Asa Gray

EATONIA.—A magnified spikelet of E. obtusata, expanded, showing the empty glumes, the two flowers, and a rudiment.

MELICA.—A magnified spikelet of M. mutica, expanded, showing the empty glumes, two perfect flowers, and an abortive one.

GLYCERIA.—(1) A magnified spikelet of G. nervata; (2) a separate flower with one joint of the rhachis; and (3) the lower half of a flowering glume, showing its form (rounded on the back, not keeled).

DISTICHLIS—(1) A pistillate spikelet of D. maritima, enlarged; (2) a flower from the same; and (3) a flower from a staminate spikelet.

POA.—(1) Panicle of P. compressa, reduced in size; (2) a magnified spikelet; (3) a separate flower more magnified; (4) a flowering glume cut across and somewhat outspread.

ERAGROSTIS.—(1) A spikelet of E. pilosa, enlarged; (2) the same, from which the glumes and all of six lower flowers except the palets have fallen away; (3) a magnified flower, open; (4) the flowering glume of the same outspread.

BRIZA.—(1) A spikelet of B. media, enlarged; (2) a separate flower.

FESTUCA.—(1) A spikelet of F. elatior, enlarged; (2) a separate flower; (3) lower part of a flowering glume, outspread.

BROMUS.—(1) A spikelet of B. secalinus, or Chess; and (2) a separate flower, enlarged.