• Corpus ID: 82045907

CARACTERES MORFOLÓGICOS EN ESPORAS DE POLYPODIACEAE Y SU APLICACIÓN EN LA RECONSTRUCCIÓN FILOGENÉTICA

@inproceedings{TrianaMoreno2012CARACTERESME,
  title={CARACTERES MORFOL{\'O}GICOS EN ESPORAS DE POLYPODIACEAE Y SU APLICACI{\'O}N EN LA RECONSTRUCCI{\'O}N FILOGEN{\'E}TICA},
  author={Luz Amparo Triana-Moreno},
  year={2012}
}
During the performance of a preliminary phyogenetic study of Pecluma M.G. Price (Polypodiaceae), eight genera of the family were studied, as well as Oleandra Cav. (Oleandraceae), which was an element of the outgroup. The morphology of the spores was studied, because it is a phylogeneticaly unexplored information source. It was observed using high vacuum scanning electron microscopy. Three spore characters were studied: "chlorophyllous spores", "shape" and "ornamentation". The distribution of… 
Palynological analysis of Dennstaedtiaceae taxa from the Paranaense Phytogeographic Province that produce Trilete spores II: Microlepia speluncae and Pteridium arachnoideum.
TLDR
The spore morphology and perispore ultrastructure allow differentiating Microlepia from Pteridium but also to the other Dennstaedtiaceae genera that grow in the Paranaense Province and allow establishing relationships that let us recognize different groups.

References

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TLDR
Characteristics such as size, shape and exospore and perispore sculpture allow us to differentiate among some of the genera as well as recognize species groups.
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TLDR
This study is the largest done on perispore morphology in relation to phylogeny in a genus of ferns and identifies Synapomorphies for major clades within the genus, such as spines for the Neotropical species of sect.
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TLDR
It was found that two vascular bundles are present in many grammitid petioles and are not unique to Luisma, mesophyll composed of long-armed stellate parenchyma evolves at least three times and is notunique to Enterosora, and perforated dictyosteles are common in grammitids and not restricted to Zygophlebia.
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TLDR
This study allows us to assign extant and fossil megaspores to monophyletic groups within the Selaginellaceae.
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TLDR
This work focuses on resolving the circumscriptions of some large Neotropical genera by focusing on a clade, identified in previous analyses, that includes the monophyletic genus Melpomene, plus portions of two polyphyletic genera, Lellingeria and Terpsichore.
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TLDR
It is suggested that Lellingeria is monophyletic, with two clades that are easily characterized morphologically and biogeographically and a small clade previously considered in Terpsichore should be recognized as a new genus.
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TLDR
Both Bayesian and Maximum Parsimony analyses support the monophyly of Leucotrichum, with bootstrap value of 100% and posterior probability value of 1.0, and its sister-group relationship to the Terpsichore lanigera group.
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TLDR
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TLDR
The results suggest that Micropolypodium is confined to eastern Asia and the new genus Moranopteris comprises 28 species—including two new species here described, M. rupicola and M. simplex—and one hybrid, occurring in the Neotropics.
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