Fig. 3

Trichomes on adaxial (a–f) and abaxial leaf surfaces (g–l) under light microscopy (LM). a, g A. breviscapa, b, h A. kerrii, c, i A. suddeeana, d, j A. variabilis, e, k Argyreia 1 and f, l Argyreia 2 (lst large straight trichome, sst small straight trichome, sct small curly trichome, st stomata). Scale bar 200 µm