Abstract

• Hypselandra variabilis (Collett & Hemsl.) Pax & K.Hoffm., locally known as Thamon, belongs to the family Capparaceae (Capparidaceae). It is indigenous to Myanmar, especially found in Mandalay, Sagaing and Magway Regions. The specimens were collected from Pakokku Township in Magway Region. The present work deals with the morphological and anatomical characters of both vegetative and reproductive parts of the plant. In morphological study, Hypselandra variabiis (Collett & Hemsl.) Pax & K.Hoffm is a perennial, medium-sized tree that bears greyish brown to dark brown bark, the branches are slightly pubescent when young. The leaves are simple and variable in shape and size. Inflorescences are terminal or axillary corymbose racemes. Flowers are bisexual, actinomorphic, hypogynous and leafy bracts. The outstanding characters are the presence of the androgynophore and the absence of corolla. The ovary is superior and parietal placentation. The histological study showed that stomata were present only on lower epidermis and anomocytic type. Uniseriate, multicellular, basal-celled trichomes were present on the upper surface of epidermal cells. Vascular bundles were found in the form of a collateral, closed type and crescent shape in midrib. The petiole, stem and gall were observed in the form of a collateral, closed type and circular in shape but the root was found in radial type. These characters presented in this research could be used as standardization in traditional medicine.