Xanthagaricus montgomeryensis sp. nov. (Agaricaceae, Agaricales) from Chichawatni Forest, Punjab Pakistan

A new species of Xanthagaricus, is described based on collections made from Chichawatni Forest, District Sahiwal, Punjab, Pakistan. It is characterized by medium-sized basidiomata, pale-yellowish pileus with yellowish to dark brown squamules, and small oblong to ellipsoid yellowish basidiospores (3.99-4.87 x 2.12-2.85 mu m). Molecular phylogenetic analyses based on the Internal Transcribed Spacers (ITS1-5.8S-ITS2 = ITS) and D1/D2 domains of the large subunit (28S) of the nuclear ribosomal DNA, also support the finding that Xanthagaricus montgomeryensis is distinct from other known species within the genus Xanthagaricus.

Automated summary

This study describes a new species of Xanthagaricus based on collections from Chichawatni Forest, District Sahiwal, Punjab, Pakistan. The new species is characterized by medium-sized basidiomata, pale-yellowish pileus with yellowish to dark brown squamules, and small oblong to ellipsoid yellowish basidiospores (3.99-4.87 x 2.12-2.85 μm). Molecular phylogenetic analyses also confirm the distinctness of Xanthagaricus montgomeryensis from other known species within the genus.