Fig. 3From: Leaf ecological stoichiometry and anatomical structural adaptation mechanisms of Quercus sect. Heterobalanus in southeastern Qinghai–Tibet PlateauCharacteristics of leaf structure of QSH plants using optical microscopy (×20). (a) Trees, (b) shrubs, (c) Q. pannosa, (d) Q. aquifolioides, (e) Q. spinosa, (f) Q. semicarpifolia, (g) Q. longispica, and (h) Q. monimotricha. Cu cuticle; Ue upper epidermis; Pa palisade tissue; Sp spongy tissue; Le lower epidermis; Eh epidermal hairBack to article page