FIGURE 2 in Stem anatomy and its systematic implication in Bufonia (Caryophyllaceae, Sagineae) and related genera

FIGURE 2. Cross-sections of stems in selected species of Bufonia. a: B. capsularis; b: B. oliveriana; c: B. calyculata; d: B. virgata; e: B. macrocarpa; f: B. perennis subsp. tuberculata; g: B. macropetala subsp. willkomiana; h: B. sintenisii; i: B. kotschyana subsp. kotschyana; j: B. paniculata; k: B. stricta; l: B. parviflora; m: B. tenuifolia; n: B. mauritanica; o: B. kotschyana subsp. calycina.