Skip to main content
Fig. 6 | BMC Plant Biology

Fig. 6

From: Origin and evolution of Petrocosmea (Gesneriaceae) inferred from both DNA sequence and novel findings in morphology with a test of morphology-based hypotheses

Fig. 6

Geographical distribution and ancestral area reconstruction of Petrocosmea based on the combined cpDNA and nDNA data. Four areas are defined as follows: Region A, the border region of China, Thailand, India, and Myanmar, lying east and southeast of Himalaya Mountain-Tibetan Plateau; Region B, the Hengduan Mountain-Yunnan Plateau region in southwestern China; Region C, The central China; Region D, the north-central China (only one species, i.e. Petrocosmea qinlingensis, belonging to clade E, is distributed in Qinling Mountains (Shanxi province) in north-central China)

Back to article page