FIGURE 3 in Vincetoxicum strigosum (Asclepiadoideae, Apocynaceae), a new species from northeastern Thailand

FIGURE 3. Photographs of Vincetoxicum strigosum (A–C) and V. kerrii (D-F). A. Strigose adaxial leaf surface. B. Transverse section of leaf blade (spirit collection) stained with safranin O showing smooth adaxial epidermis. C. Pollinarium with obovate-shaped corpusculum. D. Glabrous adaxial leaf surface. E. Transverse section of leaf blade (spirit collection) stained with safranin O showing papillose adaxial epidermis. F. Pollinarium with oblong-shaped corpusculum. Photographs taken from A. Kidyoo 51 A-C and A. Kidyoo 65 D-F.