New species ofStrophariafromAraucaria angustifoliaforests of southern Brazil

Abstract

Two new agaric species of Stropharia are described from Araucaria angustifolia (Brazilian pine) forests of southern Brazil. Stropharia agaricoides presents Agaricus-like basidiomes, small basidiospores (5-7 microm long) and pyriform cheilochrysocystidia. Stropharia venusta is characterized by the reddish to pinkish pileus, large basidiospores (12-15 microm long) and subclavate cheiloleptocystidia.

Stropharia Coelhoi (Basidiomycota): A New Species From Brazil

“…Observations. The proposed new species is another A. angustifolia forest inhabitant and, as other recently discovered taxa from this region, it shares some morphological similarities (Cortez & Silveira, 2007, 2008Silva et al, 2009). The presence of a brown pileus, the basidiospore features and the presence of cauloleptocystidia remind those of S. araucariae Cortez & R.M.…”

“…Recent taxonomic studies revealed unknown species from Asia (Senthilarasu & Singh, 2013;Tian & Bau, 2014), Australia (Chang et al, 2006), and America (Desjardin & Hemmes, 2001;Bandala et al, 2005). In Brazil, the genus is best known from the Atlantic Forest areas of southern and southeastern Brazil (Maia et al, 2015), and recent research in the southernmost state of Rio Grande do Sul resulted on the discovery of new taxa (Cortez & Silveira, 2007, 2008Silva et al, 2009).…”

Synopsis of the Strophariaceae (Basidiomycota, Agaricales) from Floresta Nacional de São Francisco de Paula, Rio Grande do Sul State, Brazil

“…Fifty two specimens were studied, the majority were collected by the authors at the National Forest Dobrovolski et al (2006) and Silva et al (2009). Microscopic observations were made obtaining thin free-hand sections of the pileus and stipe of dried specimens, mounted on 5% KOH (potassium hydroxide) simple or with 1% Congo red solution.…”

“…More recently, a series of studies on this family from Rio Grande do Sul improved the knowledge of the group with publications by Cortez & Coelho (2003, Cortez & Silveira (2007a, 2007b, Guzmán & Cortez (2004, 2005, Rossato et al (2009), Sobestiansky (2005), Silva et al (2006Silva et al ( , 2009 and Sulzbacher et al (2007).…”

“…Quél., especially the presence of acanthocytes in the rhizomorphs. For a detailed description, see Silva et al (2009 This species has been described for the area by Cortez & Silveira (2008) and is similar to Stropharia rugosoannulata and S. hornemanii (Fr.) S. Lundell & Nannf.…”