Hygrophorus Fr. 1836
Creators: name: Zhang, Yu-Xin
name: Mao, Ning
name: Fan, Li
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Agaricomycetes
Agaricales
Hygrophoraceae
Hygrophorus

description: Key to the known species of Hygrophorus subgenus Colorai from China
1. Cheilocystidia and pleurocystidia absent ...........................................................................................................................................2
1. Cheilocystidia and pleurocystidia present ..........................................................................................................................................3
2. Pileus surface dry, raw umber to pale ochre...................................................................................................................... H. robustus
2. Pileus surface glutinous, dark yellow or olivaceous brown ...................................................................................... H. viridiflavidus
3. Floccules at the stipe apex absent.......................................................................................................................................................4
3. Floccules at the stipe apex present ...................................................................................................................................................13
4. Stipe apex has an annular zone...........................................................................................................................................................5
4. Stipe apex has none annular zone.......................................................................................................................................................7
5. Pileus blackish-brown to brown ...................................................................................................................................... H. annulatus
5. Pileus light yellow to yellow ..............................................................................................................................................................6
6. Pileus plane, with a broad small umbo........................................................................................................................... H. esculentus
6. Pileus plane, with a depressed center ................................................................................................................................ H. xiangjun
7. Pileus has reddish to purplish tinge ....................................................................................................................................................8
7. Pileus has brown tinge......................................................................................................................................................................11
8. Pileus> 15 cm diam.; basidiospores small, 5.5–7 × 3.5–4.8 μm .................................................................................... H. orientalis
8. Pileus <15 cm diam.; basidiospores slightly large ............................................................................................................................9
9. Pileus> 10 cm diam.; associated with Fagaceae ..............................................................................................................................10
9. Pileus <10 cm diam.; probably associated with Ericaceae or Theaceae .........................................................................................12
10. Pileus applanate, context thick (up to 2.4 cm .................................................................................................................. H. deliciosus
10. Pileus wavy and uplifted, context thin (0.4–0.9 cm .................................................................................................... H. qinggangjun
11. Pileus broadly convex or flat, slender basidia (41–57 × 6–10 μm)..................................................................................... H. alpinus
11. Pileus plane with a small umbo, shorter and wider basidia (33–45 × 8–11 μm................................................. H. pseudohypothejus
12. Basidiospores broad ellipsoid, Qm = 1.48, surface bacillate ornamentation .............................................................. H. parvirussula
12. Basidiospores narrow ellipsoid, Qm = 1.86, surface smooth...................................................................................... H. yunnanensis
13. Odor sweetish, reminiscent of bitter almonds ..................................................................................................................................14
13. Odor indistinct ..................................................................................................................................................................................15
14. Associated with Picea spp. ..................................................................................................................................... H. agathosmoides
14. Associated with Pinus spp. ............................................................................................................................................ H. pinophilus
15. Habitat in broad-leaved forests....................................................................................................................................... H. atrofuscus
15. Habitat in mixed broadleaf-conifer tree forests................................................................................................................................16
16. Pileus 4–7cm diam., yellowish-brown to brown, margin wavy and ruffled like the hem of a skirt ........................... H. brunneiceps
16. Pileus 3–4.5 cm diam., applanate, margin usually uplifted at maturity; fawn-colored to yellowish-brown near the margin, brown at centre ............................................................................................................................................................................... H. habaensis
description: Published as part of Zhang, Yu-Xin, Mao, Ning & Fan, Li, 2023, Hygrophorus viridiflavidus sp. nov. (Hygrophoraceae, Agaricales), from North China, pp. 187-197 in Phytotaxa 579 (3) on page 194, DOI: 10.11646/phytotaxa.579.3.4, http://zenodo.org/record/7550376