Comparative leaf epidermis study in Habenaria spp. (Orchidaceae) from Thailand

Abstract. Muangsan N, Saensouk P, Chanokkhun T, Watthana S. 2022. Comparative leaf epidermis study in Habenaria spp. (Orchidaceae) from Thailand. Biodiversitas 23: 4159-4168. The variation of epidermal and stomatal characteristics could be used for plant classification, including orchids. This aimed to investigate characters Thailand focused on the H. rhodocheila group related species. Fourteen accessions belonging 10 species were studied compared. Epidermal peels taken upper lower surfaces leaves observed under a light microscope. stomata all distributed only epidermis, where they hypostomatic anomocytic. cell density showed significant differences between two surface sides. size is significantly different among samples. highest index was presented rostrata lowest (red). There no gap its closely It indicated that are shared genus has tentatively separated other based anatomical characteristics.