A new species of Russula subgenus Russula (Russulaceae, Russulales) from Yanshan Mountains, North China Author Zhou, Hao 0000-0002-4869-2187 hadrian _ zhou @ 126. com; https: // orcid. org / 0000 - 0002 - 4869 - 2187 Author Shen, Xiao-Ye 0000-0003-0789-6850 shenxiaoye 2009 @ cnu. edu. cn; https: // orcid. org / 0000 - 0003 - 0789 - 6850 shenxiaoye2009@cnu.edu.cn Author Hou, Cheng-Lin 0000-0001-8162-5560 chenglin-hou @ cnu. edu. cn; https: // orcid. org / 0000 - 0001 - 8162 - 5560 chenglin-hou@cnu.edu.cn text Phytotaxa 2023 2023-08-24 609 3 195 208 http://dx.doi.org/10.11646/phytotaxa.609.3.3 journal article 264134 10.11646/phytotaxa.609.3.3 a79ea26b-db5d-4be4-a4e5-88b6d70e5703 1179-3163 8281343 Key to Russula subgenus Russula from China 1. Pileipellis with primordial hypha, the surface of pileus is mainly purple tone ................................................ R. purpureoverrucosa 1. Pileipellis without primordial hypha ..................................................................................................................................................2 2. Spore print cream, ochre yellow to yellow.........................................................................................................................................3 2. Spore print white to cream .................................................................................................................................................................4 3. Basidiomata medium-sized .......................................................................................................................................... R. rubiginosus 3. Basidiocarps small to medium-sized ................................................................................................................... R. heilongjiangensis 4. Stipe with brownish tone ............................................................................................................................................... R. subversatili 4. Stipe with red, rose red, purple tone...................................................................................................................................................5 4. Stipe with yellow tone ........................................................................................................................................................................7 4. Stipe white ........................................................................................................................................................................................14 5. Lamellulae not observed..................................................................................................................................................... R. begonia 5. Lamellulae present......................................................................................................................................................... R. rhodochroa 5. Lamellulae rare...................................................................................................................................................................................6 6. Lamellae adnate, white....................................................................................................................................................... R. photinia 6. Lamellae adnate to adnexed, white to cream............................................................................................................................. R. rufa 7. Pileus with red tone ...................................................................................................................................................... R. sinorobusta 7. Pileus with brown tone .......................................................................................................................................................................8 7. Pileus with pink tone ..........................................................................................................................................................................9 8. Context slowly and partly turning ocherous color after bruising............................................................................... R. khinganensis 8. Context unchanging after bruising ....................................................................................................................... R. vinosobrunneola 9. Central dark red to deep red pileus...................................................................................................................................................10 9. Central light yellow to yellowish-brown pileus ......................................................................................................... R. yanshanensis 10. Lamellae hardly forked.................................................................................................................................................... R. sinoparva 10. Lamellae usually forked ....................................................................................................................................... R. pseudosinoparva 11. Very little red tone on the pileus.......................................................................................................................................................12 11. Pileus with red tone ..........................................................................................................................................................................14 11. Pileus with pink tone ........................................................................................................................................................................19 11. Pileus with yellow tone ................................................................................................................................................. R. miyunensis 11. Pileus white ........................................................................................................................................................................... R. nivalis 12. Stipe spongy to hollow ............................................................................................................................................... R. zhejiangensis 12. Stipe hollow......................................................................................................................................................................................13 13. Lamellulae present............................................................................................................................................................. R. jilinensis 13. Lamellulae absent........................................................................................................................................................ R. sichuanensis 14. Flesh of the pileus organisms turns slightly yellow after injury.............................................................................................. R. chiui 14. Flesh of the pileus organisms no color change after injury..............................................................................................................15 15. Slightly pungent to moderately pungent flavor ................................................................................................................................16 15. Soft flavor.........................................................................................................................................................................................17 16. Lamellulae absent.............................................................................................................................................................. R. quercina 16. Lamellulae present................................................................................................................................................. R. brunneovinacea 17. Stipe hollow......................................................................................................................................................................................18 17. Stipe firm ................................................................................................................................................................................ R. plana 17. Stipe spongy ......................................................................................................................................................................... R. fanjing 18. Yellowish red to reddish brown pileus center......................................................................................................... R. leucomarginata 18. Reddish white to ruby red in the pileus center .................................................................................................................... R. roseola 18. Reddish brown to dark brown pileus center........................................................................................................... R. subsanguinaria 19. Lamellae intervenose................................................................................................................................................... R. coronaspora 19. Lamellae adnate...................................................................................................................................................................... R. minor