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A new species and new records of Leptogium (Ach.) Gray (Collemataceae, Peltigerales) from Rio Grande do Sul State with an identification key for the genus Anais da ABC (AABC)
KITAURA,MARCOS J.; KOCH,NATÁLIA M.; LUCHETA,FABIANE; KÄFFER,MÁRCIA I.; SCHMITT,JAIRO L.; PEDROSO,JULIANA; MARTINS,SUZANA A.; RODRIGUES,ANDRESSA S.; CANÊZ,LUCIANA S..
Abstract Abstract: Specimens of Leptogium collected in ten localities from the State of Rio Grande do Sul were studied. Sixteen species were found of 28 records mentioned to the state, which represents around 57% of the Leptogium diversity known for Rio Grande do Sul. Leptogium exaratum is proposed as a new species. Leptogium atlanticum, L. milligranum and L. vesiculosum are reported for the first time to the state. The lectotype of L. javanicum is reported here and detailed descriptions are provided to the examined specimens. An identification key is showed with all the 28 mentioned species of Leptogium. It is the first published taxonomic key for Leptogium from Rio Grande do Sul, the State with the highest diversity of this genus in Brazil.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Checklist; Diversity; HAS herbarium; HURG herbarium; Inflated apothecia.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100607
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Morphometric differences of Microgramma squamulosa (Kaulf.) de la Sota (Polypodiaceae) leaves in environments with distinct atmospheric air quality Anais da ABC (AABC)
ROCHA,LEDYANE D.; COSTA,GUSTAVO M. DA; GEHLEN,GÜNTHER; DROSTE,ANNETTE; SCHMITT,JAIRO L..
Plants growing in environments with different atmospheric conditions may present changes in the morphometric parameters of their leaves. Microgramma squamulosa (Kaulf.) de la Sota is a neotropical epiphytic fern found in impacted environments. The aims of this study were to quantitatively compare structural characteristics of leaves in areas with different air quality conditions, and to identify morphometric parameters that are potential indicators of the effects of pollution on these plants. Fertile and sterile leaves growing on isolated trees were collected from an urban (Estância Velha) and a rural (Novo Hamburgo) environment, in Rio Grande do Sul, Brazil. For each leaf type, macroscopic and microscopic analyses were performed on 192 samples collected...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atmospheric pollution; Bioindicator; Epiphytism; Fern; Leaf anatomy.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301137
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