2016
DOI: 10.1590/0001-3765201620150230
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Palynological analysis of Dennstaedtiaceae taxa from the Paranaense Phytogeographic Province that produce Trilete spores II: Microlepia speluncae and Pteridium arachnoideum

Abstract: The spore morphology and wall ultrastructure of Microlepia speluncae and Pteridium arachnoideum from the Paranaense Province were analyzed with LM, SEM and TEM and a comparative analysis was carried out. In both species the spores are covered by a three-dimensional network of threads branched and fused, tangentially arranged to the surface, and some free-end threads are also seen. The species were differentiated by morphology and the frequency of threads fusion and the networks distribution on the surface of t… Show more

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Cited by 8 publications
(14 citation statements)
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“…However, in previous molecular phylogenetic studies, Microlepia was monophyletic [6,[9][10][11] with the type species of Microlepia speluncae (L.) T. Moore 1857 and was sister to the old-world clade of Dennstaedtia [10]. We can distinguish Microlepia and Dennstaedtia from the following characteristics: the abaxial condition of sori, the shallow costal grooves and the finely echinate spores [7,12].…”
Section: Introductionmentioning
confidence: 99%
“…However, in previous molecular phylogenetic studies, Microlepia was monophyletic [6,[9][10][11] with the type species of Microlepia speluncae (L.) T. Moore 1857 and was sister to the old-world clade of Dennstaedtia [10]. We can distinguish Microlepia and Dennstaedtia from the following characteristics: the abaxial condition of sori, the shallow costal grooves and the finely echinate spores [7,12].…”
Section: Introductionmentioning
confidence: 99%
“…Additionally, threads that connect bacula on the perispore surface were observed as did describe Tryon and Lugardon (1991). These threads did not present a differentiation of electron-density at substructural level unlike the threads found in other species of the family (Yañez et al 2016b). AGUSTINA YAÑEZ, GONZALO J. MARQUEZ and MARTA A. MORBELLI This is the first time that the sporoderm ultrastructure of Blotiella lindeniana was analyzed with TEM.…”
Section: Spores Of Botiella Lindeniana Paesia Glandulosamentioning
confidence: 71%
“…Esmeraldas, and Ouro Branco. 2 Average data from Canela and Nova Petrópolis. 3 Average data of all five municipalities.…”
Section: Resultsmentioning
confidence: 99%
“…Pteridium arachnoideum (Kaulf.) of the Dennstaedtiaceae family is a fern of the Pteridium aquilinum species complex found in South America [1,2]. The consumption of this plant can result in human and Toxins 2020, 12, 288; doi:10.3390/toxins12050288 www.mdpi.com/journal/toxins animal poisoning.…”
Section: Introductionmentioning
confidence: 99%