Developmental patterns of leaves in Podostemaceae compared with more typical flowering plants: saltational evolution and fuzzy morphology
Developmental patterns of leaves in Podostemaceae compared with more typical flowering plants: saltational evolution and fuzzy morphology
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与更典型的开花植物相比，Podostemaceae 叶子的发育模式：突变演化和模糊形态
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发表时间：
1995
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通讯作者：
R. Rutishauser
中科院分区：
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作者：
R. Rutishauser
显花植物的叶和茎被广泛认为是可明显区分的结构类别。然而，进化可以模糊茎-叶（轴-附属物）的区别。具有顶端生长和三维分枝的复叶可以被看作是与多叶茎（枝）共享某些生长过程的发育镶嵌体。为了科普结构类别之间的模糊边界，模糊形态学被提出作为一种补充的方式来看待高等植物建筑。模糊形态学处理结构类别（例如，叶和茎）作为具有模糊（不清晰）边界的概念。复叶的发育形态进行了描述比较芹菜（Apiaceae）与不太典型的被子植物（“不适合”）的的rheophyte家庭Podostemaceae，特别是Marathrum rubrum，Mourera fluviatilis，和Tristicha trifaria。在一些罗汉果科的分类群中，典型的叶特征可能被新的特性所取代，例如，叶片对称面90°切换
Leaves and stems of flowering plants have been widely accepted as clearly distinguishable structural categories. Evolution, however, can blur the stem–leaf (axis–appendage) distinction. Compound leaves with apical growth and three-dimensional branching may be seen as developmental mosaics sharing some growth processes with leafy stems (shoots). To cope with fuzzy boundaries between structural categories, fuzzy morphology is proposed as a complementary way of looking at higher plant architecture. Fuzzy morphology treats structural categories (e.g., leaves and stems) as concepts with fuzzy (not sharp) boundaries. The developmental morphology of compound leaves is described comparing Apium repens (Apiaceae) with less typical angiosperms ("misfits") of the rheophyte family Podostemaceae, especially Marathrum rubrum, Mourera fluviatilis, and Tristicha trifaria. In some taxa within the Podostemaceae, typical leaf characteristics may be replaced by new properties, e.g., 90° switch of symmetry plane of the leaf p...