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Revista de Biología Tropical

On-line version ISSN 0034-7744Print version ISSN 0034-7744


TEJERO-DIEZ, J. Daniel; AGUILAR-RODRIGUEZ, Silvia; TERRAZAS, Teresa  and  PACHECO, Leticia. Arquitectura y anatomía foliar del complejo Polypodium plesiosorum sensu Moran (Polypodiaceae). Rev. biol. trop [online]. 2010, vol.58, n.3, pp.955-976. ISSN 0034-7744.

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. Rev. Biol. Trop. 58 (3): 955-976. Epub 2010 September 01.

Keywords : polypodiaceae; Polypodium plesiosorum complex; leaf architecture; leaf anatomy; Mexico.

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