Duarte M R, Debur M C
Laboratório de Farmacognosia, Departamento de Farmácia, Universidade Federal do Paraná, Rua Pref, Lothário Meissner, 3400, CEP 80210170, Curitiba, Paraná, Brazil.
Fitoterapia. 2005 Jan;76(1):41-9. doi: 10.1016/j.fitote.2004.10.003.
Maytenus ilicifolia is a woody medicinal plant, employed mainly for its antiulcerogenic properties. The stem and leaf morphoanatomy has been studied, aiming to supply knowledge for the pharmacognostic and taxonomic species identification. The vegetative material was fixed, freehand sectioned and stained according to usual microtechniques. The stem organization, in secondary growth, shows periderm beneath the remaining epidermis, conspicuous sclerenchymatic ring in the cortex and cambium forming phloem outside and xylem inside. The leaf is simple, alternate and lanceolate and has sparsely spiny teeth along the margin. Epidermal cells containing calcium oxalate crystals, thick cuticle that forms cuticular flanges, dorsiventral mesophyll and amphicrival bundle in the midrib and petiole are observed.
冬青叶美登木是一种木本药用植物，主要因其抗溃疡特性而被使用。对其茎和叶的形态解剖学进行了研究，旨在为该物种的生药学和分类学鉴定提供知识。按照常规显微技术对营养材料进行固定、徒手切片和染色。处于次生生长阶段的茎结构显示，在残留的表皮下方有周皮，皮层中有明显的厚壁组织环，形成层在外侧形成韧皮部，在内侧形成木质部。叶片为单叶、互生、披针形，边缘有稀疏的刺状齿。观察到表皮细胞含有草酸钙晶体，有形成角质层凸缘的厚角质层，背腹叶肉以及中脉和叶柄中的双韧维管束。
