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. 2017 Oct 25;120(5):819–832. doi: 10.1093/aob/mcx115

Fig. 2.

Fig. 2.

Floral morphological structures of Ophiocaryon. (A, B, D, F, G, I, J) O. heterophyllum; (C) O. duckei; (E) O. klugii. (H) O. paradoxum. (A) Superposed calyx and corolla, with two outermost sepals (K1, 2) smaller than the three inner sepals (K3–5). (B) A fully anthetic flower. Note arrangement of stamens opposite inner petals and small staminodes opposite outer petals (arrowheads). (C) A petal with ovate shape and obtuse apex. (D) A petal with ovate shape and acuminate apex, attached to a bilobed staminode. (E) A flower with elongated oval-shaped petal with acuminate apex. (F) A short swollen stamen attached to a petal with disporangiate, monothecal anther; note the rough upper surface and smooth lower surface. (G) A bilobed obcordate staminode with rough upper surface and smooth lower surface. (H) An ovate staminode with two small lobes at the apex. (I) Two stamens on lateral sides of the ovary; note cup-shaped structure under the anther (Cu). (J) Curling up of the anther wall after release of the pollen grains (arrowhead). A, stamen; A0, staminode; K, calyx; C, corolla; Cu, cupula; G, pistil. Scale bars: (A–F, I, J) = 100 μm; (G) = 20 μm; (H) = 30 μm.