da Rosa Sônia M, de Souza Luiz A
Departamento de Biologia, Universidade Estadual de Maringá, A Paraná, Brasil.
Acta Cient Venez. 2004;55(1):27-34.
Flowers, fruits, seeds and subterranean organ of Piper amalago var. medium Linnaeus were analyzed structurally. Flowers are hermaphrodite lacking perianth, with two stamens and a tricarpelate gynoecea. Tetrasporangiate anthers shows epidermis, endothecium, one or two middle layers and secretory tapetum. Ovary has a simple structure, with ventral meristem. There is one orthotropous, bitegmic and crassinucellate ovule. Fruits are drupes. Seeds are endotegmic with copious perisperm. Putamen is composed of a sclerified inner mesocarp and endocarp. Individuals of the species can be interlinked by radicular subterranean organ, that can spread vegetatively.
对中间胡椒变种（Piper amalago var. medium Linnaeus）的花、果实、种子和地下器官进行了结构分析。花为两性花，无花被，有两个雄蕊和一个三心皮雌蕊群。四孢子囊花药有表皮、药室内壁、一或两层中层和分泌型绒毡层。子房结构简单，有腹生分生组织。有一个直生、具双珠被和厚珠心的胚珠。果实为核果。种子具内种皮，有大量外胚乳。内果皮由硬化的内中果皮和内果皮组成。该物种的个体可通过具根的地下器官相连，从而进行营养繁殖。
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