FIGURE 15 in Persepolium (Polygoneae): A new genus in Polygonaceae based on conventional Maximum Parsimony and Three-taxon statement analyses of a comprehensive morphological dataset

FIGURE 15. Flowers and achenes of Atraphaxis (A–F, J, L), Bactria (K), and Polygonum subsection Spinescentia (G–I) (SEM): (A–B)—A. fischeri, filaments at the receptacle edge. (C–D)—ibid, papillae at the filament base. (E)—ibid, nectar-secreating zone of receptacle. (F)—A. pungens, epidermis of filament. (G)—Polygonum salicornioides, three linear styles connate at base. (H)—Polygonum salicornioides, tuberculate achene surface; (I)—P. aridum, three linear styles connate at base. (J)—A. toktogulica, three styles connate at base. (K)—Bactria ovczinnikovii, three styles connate at base. (L)—A. pungens, three styles with fimbriate-capitate stigmas. Scale bar = 300 μm for A, G, G–L; = 100 μm for B, I; = 30 μm for C–F, H. Images: O. Yurtseva.