Figure 5From: Two new species of Begonia sect. Coelocentrum, B. guixiensis and B. longa, from Sino-Vietnamese limestone karstsCryo SEM microphotographs of Begonia leaves. A-C: Adaxial surface; D-F: Cross section; G-I: Abaxial surface; A, D, G: Begonia guixiensis; B, E, H: B. cylindrica; C, F, I: B. longa.Back to article page