The sequestrate genus Rosbeeva T.Lebel & Orihara gen. nov. (Boletaceae) from Australasia and Japan: new species and new combinations

Abstract

The sequestrate genus Chamonixia

How do Agaricomycetes shape their fruiting bodies? 1. Morphological aspects of development

“…Furthermore, the unique marine gasteroid Nia vibrissa originates by transformation from euagaric cyphelloid taxa (Binder et al, 2001;Bodensteiner et al, 2004;Thorn et al, 2005). Gasteroid species exist also in mainly poroid clades such as the Boletales (Thiers, 1984;Hughey et al, 2000;Binder and Bresinsky, 2002;Lebel et al, 2012). Gasteroid evolutions tend to be terminal positions of development (Thiers, 1984;Lebel et al, 2012;Oberwinkler, 2012).…”

“…Gasteroid species exist also in mainly poroid clades such as the Boletales (Thiers, 1984;Hughey et al, 2000;Binder and Bresinsky, 2002;Lebel et al, 2012). Gasteroid evolutions tend to be terminal positions of development (Thiers, 1984;Lebel et al, 2012;Oberwinkler, 2012). Evolution of angiocarpous fruiting bodies from non-gasteroid clades correlates with loss of ballistospory (Thiers, 1984;Hibbett et al, 1997;Wilson et al, 2011), which is the active spore discharge mechanism employing Buller's drops at the proximal tips of basidiospores that is innate to the basidiomycetes (Buller, 1909;Pringle et al, 2005).…”

Longistriata flava (Boletaceae, Basidiomycota) – a new monotypic sequestrate genus and species from Brazilian Atlantic Forest

“…Rosbeevera has ellipsoid to fusiform basidiospores with 3-5 ridges (Lebel et al 2012), Chamonixia has subglobose to broadly ellipsoid basidiospores with 6-10 ridges (Lebel et al 2012), Rhodactina has broadly ellipsoid to subfusiform basidiospores with 8-10 ridges (Yang et al 2006), and Turmalinea has ovoid to fusoid basidiospores with 5-10 longitudinal ridges that are often branched to irregularly broken and spores can be with or without a hilar appendage (Orihara et al 2016b). The spore colors are also different in these other genera; Rossbeevera and Chamonixia have brown to brownish spores (Montecchi and Sarasini 2000;Lebel et al 2012), Turmelinea has inamyloid, non-dextrinoid, spores that are brick red to dark brown at maturity (Orihara et al 2016b) and Rhodactina species have spores that are deep purple (Yang et al 2006). In Longistriata the number of ridges is greater than in any of the other genera.…”

“…Rhodactina Pegler and T.W.K. Young (Yang et al 2006;Vadthanarat et al 2018), Rossbeevera T. Lebel and Orihara (Lebel et al 2012), Royoungia Castellano, Trappe and Malajczuk (Castellano et al 1992), Solioccasus Trappe et al (Trappe et al 2013), Turmalinea Orihara and N. Maek. (Orihara et al 2016b) and Afrocastellanoa M.E.…”

Kombocles bakaiana gen. sp. nov. (Boletaceae), a new sequestrate fungus from Cameroon

“…Numerous genera of sequestrate fungi within Boletaceae ( Boletales ) have been recognized from various regions of the world, including the widely distributed north temperate Chamonixia, Gastroboletus , and Octaviania , Australasian Rossbeevera , South-East Asian Durianella, Spongiforma , and Rhodactina , Australian Solioccasus and Royoungia , and tropical South American Castellanea , Costatisporus , and Jimtrappea (Binder & Bresinski 2002, Desjardin et al 2008, 2009, Halling et al 2012, Lebel et al 2012, Orihara et al 2012a, b, Moreau et al 2013, Trappe et al 2013, Smith et al 2015). For the African tropics, despite a high diversity of non-sequestrate, epigeous Boletaceae known from some areas (e.g.…”