RESUMO
On the basis of morphological and molecular analysis of several specimens of Lysurus periphragmoides collected in Argentina, the examination of materials collected in the type locality of Simblum sphaerocephalum (nowadays known as L. periphragmoides), also collected in Argentina (Córdoba), and the examination of specimens of L. periphragmoides from the old world, we conclude that Argentinean and South American material identified and synonymized to L. periphragmoides by Dring in 1980 should be emended as L. sphaerocephalum. As this species lacks type material designated on its protologue, and there is no type material either, we propose a lectotype and an epitype for L. sphaerocephalum. On the basis of species descriptions found in literature, we constructed a table with relevant differences between these two species: L. periphragmoides and L. sphaerocephalum. We fully describe L. sphaerocephalum, including lecto- and epitypes, and its position within the Lysuraceae clade. This work also includes descriptions and images of Blumenavia rhacodes, Itajahya galericulata, L. cruciatus, and Phallus indusiatus from Argentina, with the aim of expanding our knowledge of their distribution ranges in the studied regions.
Assuntos
Basidiomycota/classificação , Filogenia , Argentina , Basidiomycota/genética , Basidiomycota/crescimento & desenvolvimento , Análise por Conglomerados , DNA Fúngico/química , DNA Fúngico/genética , DNA Ribossômico/química , DNA Ribossômico/genética , Proteínas Fúngicas/genética , Microscopia , RNA Ribossômico 28S/genética , Análise de Sequência de DNA , Esporos Fúngicos/citologiaRESUMO
Five ectomycorrhizal species of Scleroderma were identified from herbarium and field-collected specimens from Argentina. A new hypogeous species, Scleroderma patagonicum, was recorded in association with native Nothofagus spp. in Patagonia. The epigeous species S. albidum, S. areolatum, S. bovista and S. citrinum were associated with various exotic tree species. A phylogenetic analysis based on the ITS region of Scleroderma species, including S. patagonicum, illustrates its distinct status within Scleroderma, including its placement among species with reticulate spores. Descriptions with SEM images of the spores and a key to the species are provided.
Assuntos
Basidiomycota/classificação , Magnoliopsida/microbiologia , Micorrizas/classificação , Filogenia , Microbiologia do Solo , Argentina , Sequência de Bases , Basidiomycota/genética , Basidiomycota/isolamento & purificação , Basidiomycota/ultraestrutura , DNA Fúngico/química , DNA Fúngico/genética , DNA Espaçador Ribossômico/química , DNA Espaçador Ribossômico/genética , Carpóforos/ultraestrutura , Hifas/ultraestrutura , Dados de Sequência Molecular , Micorrizas/genética , Micorrizas/isolamento & purificação , Micorrizas/ultraestrutura , RNA Fúngico/genética , RNA Ribossômico 5,8S/genética , Análise de Sequência de DNA , Solo , Esporos Fúngicos/ultraestrutura , Simbiose , ÁrvoresRESUMO
The new species, Tulostoma domingueziae, is described and illustrated. It was found in Polylepis australis woodlands in central Argentinean highlands. Tulostoma domingueziae is characterized by the combination of a warty exoperidium, contorted stipe covered by thin scales that break off, mouth slightly projected and the socket with up to six dentate hanging membranes. DNA sequence data demonstrated that T. domingueziae is distinct from Tulostoma species for which sequence data are available.
