Aureoboletus, Pouzar, 1957

Key to accepted species of Aureoboletus View in CoL View at ENA in China

1. Stipe surface with reticulation ............................................................................................................................................................2

1. Stipe surface without reticulation.......................................................................................................................................................3

2. Basidiospores larger (15–17.5 × 7–9 μm), with longitudinal ridges, pileipellis an intricate trichoderm to subcutis, stipe with distinctly coarse-lacerate reticulations ........................................................................................................................ A. wusangongii

2. Basidiospores smaller (up to 13 μm long and 5 μm wide), smooth, pileipellis a trichoderm, stipe with short and shallow reticulations ...................................................................................................................................................................... A. ornatipes

3. Pileal surface dry or slightly viscid when wet....................................................................................................................................4

3. Pileal surface viscid..........................................................................................................................................................................18

4. Basidiomata medium to larger (pileus ≥ 6 cm diam) .........................................................................................................................5

4. Basidiomata smaller (pileus <6 cm diam) .........................................................................................................................................7

5. Stipe surface white ............................................................................................................................................................... A. albipes

5. Stipe surface greyish yellow, blond, brownish red to reddish brown.................................................................................................6

6. Pileus 6–15 cm diam, brownish red to reddish brown, context yellowish white changing to yellowish olivaceous when injured, stipe surface brownish red to reddish brown, basidiospores 7–8 × 5.5–6 μm.................................................................... A. clavatus View in CoL

6. Pileus 6–10 cm diam, greyish orange to brownish orange, stipe surface greyish yellow to blond, context unchanging in colour when injured, basidiospores 9–11 × 4–5.5 μm............................................................................................................ A. yunnanensis View in CoL

7. Basidiospores with nodulose to verrucose ornamentations............................................................................................ A. shichianus View in CoL

7. Basidiospores smooth.........................................................................................................................................................................8

8. Hymenophore surface bright yellow to vivid yellow, unchanging in colour when old......................................................................9

8. Hymenophore surface pale yellow, light yellow, greenish yellow to olive brown...........................................................................11

9. Basidiospores smaller (7–8.5 × 4.5–5 μm), stipe yellowish white to pale yellow ...................................................... A. nanlingensis View in CoL

9. Basidiospores larger (up to 10.5 μm long and 6 μm wide), stipe dark orange to brownish orange .................................................10

10. Pileal surface greyish rose to brownish red, glabrous to slightly subtomentose, context pale yellow to light yellow unchanging in colour when injured, stipe surface dark orange to yellow ochre, with distinct longitudinal streaks and furfuraceous scales, basidiospores 8–10.5 × 5–6 μm................................................................................................................................. A. nephrosporus View in CoL

10. Pileal surface reddish brown to greyish ruby, smooth to minutely velvet-subtomentose, context white to yellowish white changing to greyish red to greyish rose when injured, stipe surface concolourous with pileus, smooth, basidiospores 9–10.5 × 4.5–5 μm ..... ................................................................................................................................................................................ A. griseorufescens View in CoL

11. Pileal surface covered with a thin layer of white pruina when young................................................................................ A. rubellus View in CoL

11. Pileal surface without white pruina ..................................................................................................................................................12

12. Pileal surface yellowish white to pinkish white .......................................................................................................... A. raphanaceus View in CoL

12. Pileal surface brownish orange, orangish brown, reddish brown, reddish violet, orangish yellow, reddish yellow, orange to reddish orange ...............................................................................................................................................................................................13

13. Pileal surface yellowish orange to orange ........................................................................................................ A. miniatoaurantiacus View in CoL

13. Pileal surface brown, reddish brown to reddish violet .....................................................................................................................14

14. Pileal surface covered with conical squamules ................................................................................................................... A. conicus

14. Pileal surface subtomentose, or covered with fibrillose to tomentose squamules ...........................................................................15

15. Pileal context changing greyish red, greyish rose or pastel red when injured .................................................................. A. velutipes View in CoL

15. Pileal context unchanging in colour when injured ...........................................................................................................................16

16. Basidiospores wider (up to 6 μm).......................................................................................................................... A. guangdongensis View in CoL

16. Basidiospores narrower (up to 5 μm) ...............................................................................................................................................17

17. Basidiomata smaller (pileus 1.5–2.5 cm diam), pileipellis composed of hyphae 5–13 μm diam, basidiospores 10–11.5 × 4.5–5 μm............................................................................................................................................................................................ A. solus View in CoL

17. Basidiomata larger (pileus 3.5–6 cm diam), pileipellis composed of hyphae 10–27 μm diam, basidiospores 7–9 × 3.5–5 μm ......... ........................................................................................................................................................................................ A. catenarius View in CoL

18. Pileal margin with a gelatinised membranous veil...........................................................................................................................19

18. Pileal margin without any membranous veil ....................................................................................................................................25

19. Stipe with annulus, basidiospores with longitudinal ridges ........................................................................................... A. longicollis View in CoL

19. Stipe without annulus, basidiospores smooth...................................................................................................................................20

20. Pileal surface distinctly reticulate or coarsely rugose ..................................................................................................... A. thibetanus View in CoL

20. Pileal surface glabrous or slightly rugose.........................................................................................................................................21

21. Pileus comparatively large (up to 3.5 cm)........................................................................................................................................22

21. Pileus comparatively small (up to 2.5 cm) .......................................................................................................................................23

22. Basidiospores wider (up to 6 μm)........................................................................................................................................ A. rugosus View in CoL

22. Basidiospores narrower (up to 5 μm) ..................................................................................................................................... A. tenuis View in CoL

23. Pileal surface reddish brown to ruby ............................................................................................................................... A. glutinosus View in CoL

23. Pileal surface brownish, brown to blackish brown...........................................................................................................................24

24. Basidiospores 12–15.5 × 4–5.5 μm ................................................................................................................................. A. viscidipes View in CoL

24. Basidiospores 8.5–12.5 × 4–5.5 μm ............................................................................................................................ A. microcarpus View in CoL

25. Basidiospores with Qm> 3.0 ...........................................................................................................................................................26

25. Basidiospores with Qm <3.0 ...........................................................................................................................................................27

26. Pileal surface brownish red to deep red, greyish ruby to pink, basidiospore 15–16.5 × 4.5–5 μm, a distribution in subtropical China.................................................................................................................................................................................. A. formosus View in CoL

26. Pileal surface pale yellow, light yellow, light orange, greyish yellow, greyish orange, brownish orange to brownish red, basidiospore 15–21 × 5–6.5 μm, a distribution in temperate China......................................................................................... A. quercus-spinosae View in CoL

27. Basidiospores broadly ellipsoid, ellipsoid, elongate (Qm <2.0) ...................................................................................... A. venustus View in CoL

27. Basidiospores subfusoid, cylindrical (2.0 ≤ Qm <3.0)....................................................................................................................28

28. Pileus comparatively small (pileus up to 6 cm diam)............................................................................................................ A. zangii View in CoL

28. Pileus comparatively large (up to 11 cm diam) ................................................................................................................................29

29. Pileal surface tinged with violet ..................................................................................................................................... A. sinobadius View in CoL

29. Pileal surface brown, brownish red, reddish brown to dark red.......................................................................................................30

30. Hyphae in pileipellis wider (up to 17 μm diam)...................................................................................................... A. duplicatoporus View in CoL

30. Hyphae in pileipellis narrower (up to 9 μm diam) ......................................................................................................... A. erythraeus View in CoL