Tejero-Díez J Daniel, Aguilar-Rodríguez Silvia, Terrazas Teresa, Pacheco Leticia
Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Unidad de Morfología y Función, Av. de los Barrios 1, Los Reyes Iztacala, Tlalnepantla 54090, Edo. México, México, Apdo. Postal 314.
Rev Biol Trop. 2010 Sep;58(3):955-76.
Architecture and leaf anatomy of the Polypodium plesiosorum sensu Moran complex (Polypodiaceae). The Polypodium plesisorum complex is a heterogeneous morphology group. We studied leaf architecture and anatomy of 12 species of this group, in addition to other 23 species of Polypodium (P. dulce, P. polypodioides and P. vulgare complex sensu Moran) and related genera (Goniophlebium, Phlebodium, Pleopeltis, Serpocaulon, Synammia), for comparative purposes. Two homogeneous groups of species were established in P. plesiosorum complex. One of them is recognized based on the type of anastomosis of the veins (Type III): Polypodium conterminans (originally considered in the group of P. dulce with free venation by Moran), P. hispidulum, P. plesiosorum and P. rhodopleuron. The second group with Polypodium arcanum, P. castaneum, P. colpodes, P. eatonii, and P. flagellare were recognized based on the type of anastomosis of the veins (Type IV) and how vascular strands fuse along the petiole-leaf rachis. Characters studied helped to group the remaining species with other groups outside the complex under study.
莫兰广义多足蕨复合体（水龙骨科）的植株形态与叶片解剖结构。多足蕨广义复合体是一个形态各异的类群。为作比较，我们研究了该类群中12个物种的叶片形态与解剖结构，另外还研究了23个多足蕨属的其他物种（甜多足蕨、多足蕨和莫兰广义普通多足蕨复合体）以及相关属（节肢蕨属、显脉蕨属、盾蕨属、肉茎蕨属、合囊蕨属）。在多足蕨广义复合体中确定了两个形态均一的物种组。其中一组是根据叶脉吻合类型（III型）确定的：邻边多足蕨（最初莫兰认为它属于具游离叶脉的甜多足蕨类群）、糙叶多足蕨、多足蕨和红边多足蕨。第二组包括神秘多足蕨、栗色多足蕨、沟状多足蕨、伊顿多足蕨和鞭状多足蕨，是根据叶脉吻合类型（IV型）以及维管束沿叶柄 - 叶轴的融合方式确定的。所研究的特征有助于将其余物种与所研究复合体之外的其他类群归为一组。
