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

GYMNOSTICHUM.—(1) A spikelet of G. Hystrix; and (2) an expanded flower, magnified.

ASPRELLA.—(1) A spikelet of A. Hystrix; and (2) an expanded flower, magnified.

EXPLANATION OF PLATE XII.

DESCHAMPSIA.—(1) Panicle of D. flexuosa; (2) a spikelet, magnified, the parts displayed; and (3) one of the flowers detached and open.

DANTRONIA.—(1) Panicle of D. spicata; (2) a spikelet enlarged; and (3) a separate flower from the same.

TRISETUM.—(1) A spikelet of T. subspicatum, var. molle, expanded and magnified; and (2) a separate open flower.

AVENA.—(1) A spikelet of A. striata, displayed and magnified; and (2) a separate flower.

ARRHENATHERUM.—A spikelet of A. avenaceum, displayed and magnified; (1) the empty glumes; (2) the flowers, the lower one staminate only, the next perfect, and the third a rudiment.