FIGURE 2. Sipaneopsis duckei. A in Two new species of the tribe Sipaneeae (Rubiaceae) from white-sand areas of Brazilian and Colombian Amazon

FIGURE 2. Sipaneopsis duckei. A. Branch with two frondose inflorescences and one infructescence (note last fruit on the infructescence). B. Stipule. C. Detail of an inflorescence. D. Flower at early stage of anthesis. E. Flower at intermediate stage of anthesis. F. Flower at final stage of anthesis, with corolla lobes reflexed, and receptive stigmas. G. Indehiscent fruit, fallen off as dispersal unit. A–B: drawn from Egler 273 (MG); C, G: drawn from Rosa & Lira 2268 (MG); D–F: drawn from Prance et al. 28853 (US). Illustration by Piero Delprete.