Figure 6From: Distyly and floral morphology of Psychotria cephalophora (Rubiaceae) on the oceanic Lanyu (Orchid) Island, TaiwanScanning electron micrographs of pollen grains in short- (A, C) and long-styled (B, D) morphs in Psychotria cephalophora. Scale bars = 30 μm (A, B) and 10 μm (C, D).Back to article page