Morphological characteristics of leaf epidermis and size variation of leaf, flower and fruit in different ploidy levels in Buddleja macrostachya (Buddlejaceae)
Gao CHEN, Wei-Bang SUN, Hang SUN
J Syst Evol . 2009, (3): 231 -236 .  DOI: 10.1111/j.1759-6831.2009.00026.x