Mechanism of Leaf Vein Coloration and Inheritance of Leaf Vein Color, Flower Form, and Floral Symmetry in Gloxinia in: Journal of the American Society for Horticultural Science Volume 146 Issue 3 (2021)
Botany, an elementary text for schools. Botany. 415. Stomates of geranium leaf. 41G. Grouped stomates on a begonia leaf. Fig. 417 shows the leaf-sear in the form of a ring sur-