Fig. 2. Stony habitats, microphotographs of corolla and capitula for Chrysanthemum and its allies.

a The habitat of Ajania sericea in the As population, (b) the surface rocks, (c) microphotographs of the glandular trichomes on the corolla (blue) and brownish style branches (red). d The diversity of capitula and (e) marginal female florets (ray florets) between the As (1) and Cg-N (2, 3, 4, and 5) populations. We chose fully mature female florets with Y-type stigmas (1, 2, and 3) to exclude the possibility of incomplete development and immature female florets (4 and 5) for comparison