 |
| Cortinarius jiaoheensis T. Bau & Y. Luo in Luo & Bau, 2021. |
Abstract
A new Cortinarius species in subgenus Telamonia section Flexipedes, Cortinarius jiaoheensis, is described based on morphological characteristics and molecular data. It is characterized by small basidiomata, with the surface of the pileus completely covered by woolly squamules, and ellipsoid to obovoid ellipsoid basidiospores. This species produces basidiomata in the autumn and is currently known only from northeast China.
Keywords: Agarics, ectomycorrhizal, ITS, SEM, taxonomy, Fungi
 |
| Cortinarius jiaoheensis (HMJAU56920, holotype!) Bars: A–C= 0.5 cm. Photos by Tolgor Bau. |
Cortinarius jiaoheensis T. Bau & Y. Luo sp. nov.
Diagnosis:— Basidiomata small. Pileus 6–12 mm diam, at first conical later almost plane with a prominent umbo, surface completely covered by woolly, whitish squamules. Lamellae emarginate, leather brown(6E6). Stipe slender, cylindrical, surface covered by white fibrils, greyish brown underneath, with rich white mycelium at the base. Universal veil white, forming zones on the stipe. Odor in context indistinct, not observed in lamellae. Taste somewhat spicy. Basidiospores 7.8–9.2 × 5.8–6.8 μm, broadly ellipsoid to somewhat obovoid ellipsoid, light brown (6D8) to rust brown (6E8), verrucose. Basidia with (2) 4 sterigmata. Lamellae margin with sterile cells.
Etymology:—‘jiaoheensis’ refers to its occurrence in Jiaohe County, Jilin Province, China.
Habitat:— Scattered in broadleaved forests near Quercus mongolica, fruiting in autumn.
Ying Luo and Tolgor Bau. 2021. Cortinarius jiaoheensis (Cortinariaceae), A New Species of Cortinarius subgenus Telamonia section Flexipedes, from northeast China. Phytotaxa. 494(1); 113–121. DOI: 10.11646/phytotaxa.494.1.7
