Reversal versus specialization in floral morphological evolution in Petrocosmea (Gesneriaceae)
Chao-Qun Li1,2†, Tian-Feng Lü1,2†, Meng-Qi Han1,2, Yang Dong1, Peng-Wei Li1,2, Yan Liu3, and Yin-Zheng Wang1,2*
1State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China 2College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China 3Guangxi Institute of Botany, Guangxi Zhuangzu Autonomous Region and the Chinese Academy of Sciences, Guilin 541006, Guangxi, China