Tricholoma alpinum, sp. nov., under five-needle pines in alpine and subalpine zones in Japan. (2nd January 2022)

• Record Type: Journal Article
• Authors: Aoki, Wataru; Archambault, Raymond; Bérubé, Jean; Lamoureux, Yves; Fukuda, Masaki; Yamada, Akiyoshi
• Is Part Of: Mycologia. Volume 114:Number 1(2022)
• Page Start: 190
• Page End: 202
• Publication Date: 2022-01-02
• Subjects: Agaricales -- circumboreal distribution -- ectomycorrhizal fungi -- relict species -- speciation -- 1 new taxon; Mycology -- Periodicals; Mycologie -- Périodiques; Mycology; Electronic journals; Periodicals; 579.505
• DOI: 10.1080/00275514.2021.2018889
• Languages: English
• ISSNs: 0027-5514

Abstract

ABSTRACT: Alpine regions in Japan are characterized by the Siberian dwarf pine, Pinus pumila . Although these regions are conserved as national parks due to their unique biome, few reports of the fungal biota are available. We examined mushroom fungi under such vegetation and found a unique yellowish-capped Tricholoma species. Multilocus molecular phylogenetic analyses and morphological observation of specimens showed that the Tricholoma species is very similar to T. fumosoluteum known in North America. The Japanese yellowish-capped T . aff. fumosoluteum had larger basidiospores and basidia and shorter pileipellis hyphae compared with T. fumosoluteum . Therefore, we describe the Japanese entity as a new species, T. alpinum .