Gramineae order consists of the grass family. Pictured are (1a) a part of a grass panicle, (1b) spikelet, (2) avena, (2a) portion of panicle, (2b), spikelet, (e.g.) empty glume, (fl.g.) flowering glume or lemma, (pal) palet or palea, (2c), ground plan of spikelet, (3) phleum, spikelet, and (4), phalaris, sheath and ligule.
GalleriesGrasses and Grains
L. H. Bailey Standard Cyclopedia of Horticulture (New York, New York: The MacMillan Company, 1917)