Two new species of Geastrum (Geastraceae, Basidiomycota) found in Brazil

Silva, Bianca Denise Barbosa da; Cabral, Tiara Sousa; Marinho, Paulo; Ishikawa, Noemia Kazue; Baseia, Iuri Goulart

doi:10.1127/0029-5035/2013/0089

Cited by 26 publications

(25 citation statements)

References 20 publications

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“…Douanla-Meli & al. (2005) and Da Silva & al. (2013) analysed nrLSU or a combination of nrLSU and atp6, respectively, to justify the recognition of new species.…”

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confidence: 94%

“…Radiigera contains three Nearctic and one Palearctic (Domínguez de Toledo & Castellano, 1996), plus one paleotropical species (Orihara & al., 2008). Previous phylogenetic analyses in the order Geastrales have shown Radiigera specimens to be nested in Geastrum (Hosaka & al., 2007;Hosaka & Castellano, 2008;Da Silva & al., 2013), but none of these studies was specifically focused on the relationship between the two genera. However, Jeppson & al.…”

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confidence: 99%

“…Myriostoma is almost invariably treated as a well-defined genus, and its morphological boundaries are clearly established (Sunhede, 1989). However, its phylogenetic separation from Geastrum is not fully supported (Hosaka & Castellano, 2008;Kasuya & al., 2012;Da Silva & al., 2013;Jeppson & al., 2013).…”

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confidence: 99%

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Systematics of the genus Geastrum (Fungi: Basidiomycota) revisited

Zamora

Calonge

Hosaka

et al. 2014

TAXON

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Various infrageneric classifications of the genus Geastrum have been proposed, all of them exclusively based on morphology. They are highly divergent due to the different relative value that each author gave to particular morphological features. There is no consensus about any of these classifications, and therefore most modern studies avoid classifying Geastrum species in supraspecific units. Here, a new subdivision of the genus Geastrum is presented, based on phylogenetic analyses of four molecular markers, viz., 5.8S nrDNA, nrLSU, rpb1, and atp6. This classification is also supported by chemical reactions with syringaldazine and guiaiac gum, and by some morphological characters. Most reliable morphological characters include both classically studied features (e.g., endoperidial surface, peristome structure, mycelial layer), and recently discovered ones (e.g., rhizomorph crystals). Previously published infrageneric classifications are reviewed, showing many discrepancies with the phylogenetic data. A new infrageneric subdivision is proposed: sect. Campestria sect. nov., sect. Corollina sect. nov. (including subsect. Lageniformia subsect. nov., subsect. Marginata, and subsect. Plicostomata), sect. Elegantia sect. nov., sect. Exareolata, sect. Fimbriata, sect. Fornicata, sect. Geastrum (including subsect. Arenaria subsect. nov., subsect. Geastrum, subsect. Quadrifida subsect. nov., and subsect. Sulcostomata), sect. Hariotia sect. nov., sect. Hieronymia sect. nov., sect. Myceliostroma (including subsect. Epigaea and subsect. Velutina subsect. nov.), sect. Papillata, sect. Pseudolimbata sect. nov., sect. Schmidelia sect. nov., and sect. Trichaster. The phylogenetic and morphological boundaries among three genera of Geastraceae, viz., Geastrum, Myriostoma, and Radiigera, are also evaluated. Myriostoma likely represents a different phylogenetic lineage within Geastraceae and is confirmed as distinct from Geastrum. However, Radiigera is nested in Geastrum, and therefore it is confirmed as a synonym of Geastrum.

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“…Douanla-Meli & al. (2005) and Da Silva & al. (2013) analysed nrLSU or a combination of nrLSU and atp6, respectively, to justify the recognition of new species.…”

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confidence: 94%

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confidence: 99%

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Systematics of the genus Geastrum (Fungi: Basidiomycota) revisited

Zamora

Calonge

Hosaka

et al. 2014

TAXON

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“…So far, only around 1000 species of macrofungi have been described for the Amazon forests [3]. For gasteroid fungi, 20 species have been described distributed in the states of Amazônia, Pará and Rondônia [15,16,17,18,19,20,21]. …”

Section: Introductionmentioning

confidence: 99%

Discovery or Extinction of New Scleroderma Species in Amazonia?

et al. 2016

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The Amazon Forest is a hotspot of biodiversity harboring an unknown number of undescribed taxa. Inventory studies are urgent, mainly in the areas most endangered by human activities such as extensive dam construction, where species could be in risk of extinction before being described and named. In 2015, intensive studies performed in a few locations in the Brazilian Amazon rainforest revealed three new species of the genus Scleroderma: S. anomalosporum, S. camassuense and S. duckei. The two first species were located in one of the many areas flooded by construction of hydroelectric dams throughout the Amazon; and the third in the Reserva Florestal Adolpho Ducke, a protected reverse by the INPA. The species were identified through morphology and molecular analyses of barcoding sequences (Internal Transcribed Spacer nrDNA). Scleroderma anomalosporum is characterized mainly by the smooth spores under LM in mature basidiomata (under SEM with small, unevenly distributed granules, a characteristic not observed in other species of the genus), the large size of the basidiomata, up to 120 mm diameter, and the stelliform dehiscence; S. camassuense mainly by the irregular to stellate dehiscence, the subreticulated spores and the bright sulfur-yellow colour, and Scleroderma duckei mainly by the verrucose exoperidium, stelliform dehiscence, and verrucose spores. Description, illustration and affinities with other species of the genus are provided.

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“…(2006), by means of molecular studies, showed the close relationship between the earthstars and the members of a "gomphoid-phalloid clade" and proposed the order Geastrales Hosaka & Castellano. In the last 12 years, this genus has been widely studied in the northeastern Brazil (Baseia & Milanez, 2002;Baseia & Calonge, 2006;Fazolino & al., 2008;Silva & al., 2013;Cabral & al., 2014aCabral & al., , 2014bSousa & al., 2014a, c, d), although there is a lack of information about it for the southeastern regions, specially for Minas Gerais.…”

Section: Introductionmentioning

confidence: 99%

Novelties of gasteroid fungi, earthstars and puffballs, from the Brazilian Atlantic rainforest

Alfredo

Sousa

Souza

et al. 2016

Anal. Jard. Bot. Madr.

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The goal of this study was to increase the knowledge of gasteroid fungi in Atlantic Forest biome, which is considered one of the most important hot-spots of the world. Field expeditions were carried out in the Reserva Biologica Municipal de Santa Rita Mitzi Brandao area, in the southeastern part of Minas Gerais. 39 samples belonging to 11 species of earthstars and puffballs are new record for Minas Gerais, Geastrum javanicum Lév., Bovista cunninghamii Kreisel, and Lycoperdon lambinonii Demoulin are first records for Brazil. Information about the locality, morphological characters, illustrations of the basidiomata, scanning electron microscopy (SEM) of the basidiospores, as well as its distribution in Brazil, are given for all species.

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Two new species of Geastrum (Geastraceae, Basidiomycota) found in Brazil

Cited by 26 publications

References 20 publications

Systematics of the genus Geastrum (Fungi: Basidiomycota) revisited

Systematics of the genus Geastrum (Fungi: Basidiomycota) revisited

Discovery or Extinction of New Scleroderma Species in Amazonia?

Novelties of gasteroid fungi, earthstars and puffballs, from the Brazilian Atlantic rainforest

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