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dc.contributor.author
Ramos Giacosa, Juan Pablo
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dc.date.available
2021-03-26T10:41:34Z
dc.date.issued
2019-10
dc.identifier.citation
Ramos Giacosa, Juan Pablo; Spore morphology and wall ultrastructure of Lomariocycas (Blechnaceae) species from America; Elsevier Science; Review of Palaeobotany and Palynology; 269; 10-2019; 55-63
dc.identifier.issn
0034-6667
dc.identifier.uri
http://hdl.handle.net/11336/129009
dc.description.abstract
The spores of 11 species of Lomariocycas that grow in America were studied: Lomariocycas aurata, L. columbiensis, L. cycadifolia, L. insularis, L. magellanica, L. moritziana, L. rufa, L. schomburgkii, L. shaferi, L. underwoodiana and L. werckleana. The study was performed with light microscope (LM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The spores are monolete of 61–100 μm in equatorial diameter and 40–79 μm in polar diameter. The exospore is 1.5–4.8 μm thick and in section is two-layered. The perispore is folded, two types of folds were observed in the different species analyzed and also they could be fused in different ways. In section, it is 0.5–13.8 μm thick and is two-layered. The outer layer is single stratified and the inner layer is three-stratified. The spores of some species are illustrated and described for the first time. Moreover, the sporoderm ultrastructure of L. underwodiana was not studied until now. The differences found in perispore morphology and ultrastructure could be valuable characters for systematic and phylogenetic purposes.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BLECHNACEAE
dc.subject
LOMARIOCYCAS
dc.subject
MORPHOLOGY
dc.subject
SPORES
dc.subject
ULTRASTRUCTURE
dc.subject.classification
Ciencias de las Plantas, Botánica
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Spore morphology and wall ultrastructure of Lomariocycas (Blechnaceae) species from America
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-03-25T14:09:49Z
dc.journal.volume
269
dc.journal.pagination
55-63
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Ramos Giacosa, Juan Pablo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Cátedra de Morfología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
dc.journal.title
Review of Palaeobotany and Palynology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0034666719301149
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.revpalbo.2019.06.010
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