Silvaspora Błaszk., Niezgoda, B.T. Goto, Crossay & Magurno, gen. nov.
MycoBank number: MB 838881; Index Fungorum number: IF 838881; Facesoffungi number: FoF;
Type species: S. neocaledonica (D. Redecker, Crossay & Cilia) Błaszk., Niezgoda, B.T. Goto, Crossay & Magurno, comb. nov. MycoBank MB838882.
Specimens examined: 3,768–3,772 (LPPDSE).
Etymology: Silvaspora, in honor of Dr. Gladstone Alves da Silva, Departamento de Micologia, CCB, Universidade Federal de Pernambuco, Brazil, in recognition of his important contribution to taxonomy and ecology of arbuscular mycorrhizal fungi.
Diagnosis: Differs from other genera in the Glomeraceae mainly in the nucleotide composition of sequences of the 18S- ITS-28S nuc rDNA region and the rpb1 gene.
Genus description: Forming colored glomoid glomerospores with a spore wall consisting of three layers, of which only layer 1, forming the spore surface, is impermanent and hyaline to brightly colored. Subtending hypha colored similarly to the spore wall, cylindrical, slightly funnel-shaped, or constricted at the spore base, with a pore occluded due to thickening subtending hyphal wall layer 2 continuous with the laminate spore wall layer 2, rarely slightly open. Forming mycorrhiza with arbuscules, vesicles, and hyphae staining dark in trypan blue.
Species