Novas ocorrências de Heterodermia (Líquens - Pyxinaceae) no Rio Grande do Sul, Brasil

Eliasaro, Sionara; Fleig, Mariana

doi:10.1590/s0102-33061994000100006

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“…We based our investigations on reports in the pertinent literature (e.g. Kurokawa 1962, 1998; Eliasaro 1992; Eliasaro & Fleig 1994; Martins 2007; Moberg 2011; Mongkolsuk et al 2015), the observation of material and after consulting the databases of the herbaria B, CNHLH and UPS. Identification and descriptive work was carried out at the Universidade Federal de Mato Grosso do Sul using an Olympus SZX7 stereomicroscope and an Olympus BX50 compound microscope connected to a Nikon Coolpix digital camera.…”

Section: Methodsmentioning

confidence: 99%

“…From Brazil, 41 species have so far been reported (see references below under the respective species), plus a small number of subspecific taxa. For instance, Eliasaro (1992) and Eliasaro & Fleig (1994) treated the species from Rio Grande do Sul. In addition, in an unpublished thesis dealing mostly with São Paulo specimens, Martins (2007) distinguished 17 additional, undescribed new species.…”

Section: Introductionmentioning

confidence: 99%

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Key to Heterodermia (Physciaceae, Teloschistales) in Brazil, with 15 new species

2022

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The species of Heterodermia in Brazil have been revised based on literature reports, public databases and examination of 500 recent specimens from 15 states. So far, 43 species have been reported in the literature, two of which are not accepted here. We report 10 additional species from Brazil and describe 15 new to science, mostly from the Atlantic rainforest biome, raising the total number to 68, including two still undescribed species from Santa Catarina State. A key to all accepted species is given, keying out more species than represented in any previously published key of the genus. Based on new phylogenetic work, we do not accept the split genera that were recently proposed. We do informally recognize an additional group, the H. dactyliza-group. The following species are described as new: Heterodermia amphilacinulata M. F. N. Martins & M. P. Marcelli, H. caneziae M. F. Souza & Aptroot, H. delicatula M. P. Marcelli & M. F. N. Martins, H. dissecticodiademata M. F. Souza & Aptroot, H. dissecticoflabellata M. F. Souza & Aptroot, H. flavodactyliza M. F. Souza & Aptroot, H. flavulifera M. F. Souza & Aptroot, H. labiata M. P. Marcelli & M. F. N. Martins, H. macrosoraliata M. P. Marcelli & M. F. N. Martins, H. minor M. F. Souza & Aptroot, H. neocrocea M. F. Souza & Aptroot, H. nigromarginata M. F. Souza & Aptroot, H. phyllalbicans M. F. Souza & Aptroot, H. spielmannii M. F. Souza & Aptroot and H. sublinearis M. P. Marcelli & M. F. N. Martins. The following new combinations are also proposed: Heterodermia africana (Kurok.) M. F. Souza & Aptroot and H. borphyllidiata (Kalb & Meesim) M. F. Souza & Aptroot. Dissectic acid was found in species belonging to three different groups and was not restricted to (and characteristic of) one subgroup, as previously reported.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%