Detail of female anthecium, Olyra standleyi: a, apex of the anthecium, dorsal side (X 50); b, detail of the apex of the plea showing numerous prickle hairs (x 250); c, detail of the apex of the plea showing numerous bicellular microhairs (x 400); d, detail of the surface of the lemma with oblong excavations (X 200). All micrographs of McClure 21246 (US). (Reduced to 77% of indicated magnifications for publication.)