Morfología de las esporas en especies de Elaphoglossum (Dryopteridaceae) del noroeste argentino
Spore morphology of Elaphoglossum (Dryopteridaceae) species from North-West Argentina. This is a comparative study about spores carried out in North-West Argentine species of the genus Elaphoglossum : E. crassipes (Hieron.) Diels, E. gayanum (Fee) T. Moore, E. lindbergii (Mett. ex Kuhn) Rosenst., E....
Guardado en:
| Autores principales: | , |
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| Formato: | Articulo |
| Lenguaje: | Español |
| Publicado: |
2014
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/122947 |
| Aporte de: |
| Sumario: | Spore morphology of Elaphoglossum (Dryopteridaceae) species from North-West Argentina. This is a comparative study about spores carried out in North-West Argentine species of the genus Elaphoglossum : E. crassipes (Hieron.) Diels, E. gayanum (Fee) T. Moore, E. lindbergii (Mett. ex Kuhn) Rosenst., E. lorentzii (Hieron.) H. Christ, E. piloselloides (C. Presl) T. Moore y E. yungense de la Sota. The spores were studied under light microscope and scanning electron microscope. The spores are monolete and the shape in polar view is elliptic. Mature spores have a sporodermm composed of exospore and perispore. The exospore is always smooth. The macro-ornamentation of perispore can be cristate, muriform (rugate-retate) and stelliform (echinate); granular micro-ornamentation can be seen frequently in perispores. While the aperture is a generic trait, the combination of the micro and macro-ornamentation types of the perispores varies at specific level. |
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