Detail of female anthecium, Olyra fasciculata: a, surface of the lemma showing oblong excavations (X 100); b, anthecium, dorsal side (X 50); c, base of the anthecium showing stipe (X 50); d, anthecium, ventral side (X 200). Micrographs a,c,d of Killip & Smith 23452, b, of Pereira 2294 (US). (Reduced to 77% of indicated magnifications for publication.)