Figure 5 from: Harris AJ, Chen Y, Olsen RT, Lutz S, Wen J (2017) On merging Acer sections Rubra and Hyptiocarpa: Molecular and morphological evidence. PhytoKeys 86: 9-42. https://doi.org/10.3897/phytokeys.86.13532

Figure 5 - Micrographs of the leaf surfaces of Acer pycnanthum. A Adaxial surface showing cell shape and organization (Wilson 6882) B Adaxial surface showing cuticle (Collector unknown, s.n.) C Abaxial surface showing cell shape and organization of cells and stomata (Wilson 7729) D Abaxial surface showing cuticular wax (Wilson 6882). All leaf materials are from specimens deposited at US, and parenthetical information in this legend refers to the collector name and number..