Phellinus

Drechsler-Santos, Elisandro Ricardo, Robledo, Gerardo Lucio, Lima- Júnior, Nelson C., Malosso, Elaine, Reck, Mateus A., Gibertoni, Tatiana B., De Queiroz Cavalcanti, Maria A. & Rajchenberg, Mario, 2016, Phellinotus, a new neotropical genus in the Hymenochaetaceae (Basidiomycota, Hymenochaetales), Phytotaxa 261 (3), pp. 218-239 : 231-232

Key to Phellinus s.l. and Inonotus s.l. and related poroid/hydnoid genera of Hymenochaetaceae

1. Basidiospores hyaline and slightly to strongly dextrinoid.................................................................................................................2

1. Basidiospores hyaline to chestnut brown and not dextrinoid.............................................................................................................4

2. Basidiospores ellipsoid, hyphal system monomitic, setae (hymenial or tramal) present.................................................. Mensularia

2. Basidiospores globose, hyphal system monomitic or dimitic, if present, setae only hymenial.........................................................3

3. Basidiomata perennial, resupinate to pileate, setae absent, occasionally present ............................................................ Fomitiporia

3. Basidiomata annual, pileate, hymenial setae present ................................................................................................ Pseudoinonotus

4. Setae (any type) present......................................................................................................................................................................5

4. Setae (any type) absent.....................................................................................................................................................................17

5. Asterosetae present....................................................................................................................................................... Asterodon Pat.

5. Asterosetae absent, hymenial setae and/or setal hyphae present........................................................................................................6

6. Hyphal system monomitic throughout...............................................................................................................................................7

6. Hyphal system dimitic, at least in the trama of tube layer, or trimitic.............................................................................................11

7. Setal hyphae present...........................................................................................................................................................................8

7. Setal hyphae absent............................................................................................................................................................................9

8. Basidiospores hyaline, thin-walled, hymenial setae absent ........................................................................................... Phellinidium

8. Basidiospores yellow to brown, thick-walled, hymenial setae absent or present ........................................................... Inonotus s.s.

9. Basidiomata sessile pileate to substipitate, basidiospores thin-walled............................................................................ Inonotus s.l.

9. Basidiomata sessile resupinate/pileate, basidiospores thick-walled.................................................................................................10

10. Basidiomata stipitate, sub-stipitate or centrally sessile, basidiospores ellipsoid to globose, tramal to hymenial setae present .......... ...................................................................................................................................................................................... Onnia P. Karst

10. Basidiomata sessile, basidiospores cylindrical, hymenial setae present ............................... Cylindrosporus L.W. Zhou & Y.C. Dai

11. Basidiospores obclavate to cylindric, hyphal system dimitic-trimitic .............................................................................. Phellopilus

11. Basidiopores ellipsoid, broadly ellipsoid to globose-subglobose, hyphal system dimitic...............................................................12

12. Basidiospores thin-walled, basidiospores ellipsoid/allantoid/cylindrical, generative hyphae with crystals ..................... Fuscoporia

12. Basidiospores slightly thick- to thick- walled, basidiospores ellipsoid/to subglobose-globose, generative hyphae without crystals...........................................................................................................................................................................................................13

13. Hyphal system mono-dimitic, contex monomitic, trama of tube layer dimitic................................................................................14

13. Hyphal system dimitic throughout...................................................................................................................................................15

14. Basidiomata annual to perennial, resupinate to pileate, basidiospores when ellipsoid mostly <3.5 μm wide, exclusively in tropical zone................................................................................................................................................................................. Tropicoporus

14. Basidiomota perennial, resupinate, effused-reflexed to pileate, basidiospores when ellipsoid mostly> 3.5 μm wide, in boreal, temperate, subtropical to tropical zones .................................................................................................................. Sanghuangporus

15. Tramal setae penetrating into hymenium ........................................................................................................................ Phellinopsis

15. Tramal setae absent..........................................................................................................................................................................16

16. On coniferous wood ...................................................................................................................................................... Porodaedalea

16. On hardwood .................................................................................................................................................................. Phellinus s.s.

17. Basidiospores thin-walled...............................................................................................................................................................18

17. Basidiospores thick-walled..............................................................................................................................................................20

18. Basidiospores cylindrical to obclavate ...................................................................................................................... Nothophellinus

18. Basidiospores subglobose to ellipsoid.............................................................................................................................................19

19. Basidiomata resupinate, basidiospores ellipsoid, on coniferous wood ........................................................................... Inonotopsis

19. Basidiomata pileate/substipitate, basidiospores subglobose, on deciduous wood ......................................................... Pyrrhoderma

20. Hyphal system monomitic................................................................................................................................................................21

20. Hyphal system dimitic, at least in the trama of tube layer...............................................................................................................25

21. Basidiospores ellipsoid smaller than 5 μm, hyaline in KOH ........................................................................................... Phylloporia

21. Basidiospores usually larger than 5 μm...........................................................................................................................................22

22. Basidiospores yellowish, becoming dark olivaceous green in KOH ................................................................................ Aurificaria

22. Basidiospores do not become dark olivaceous green in KOH.........................................................................................................23

23. Basidiospores yellowish to yellowish brown, becoming chestnut brown in KOH, thick-walled and adaxially flattened ............. 24

23. Basidiospores without this combination of characters .................................................................................................. Inonotus s.l.

24. Granular core present at the base of the context ................................................................................................................... Inocutis

24. Granular core absent at the base of the context .............................................................................................................. Arambarria

25. Basidiospores usually shorter than 5 μm, hyaline in KOH ............................................................................................. Phylloporia

25. Basidiospores usually larger than 5 μm, becoming chestnut brown in KOH ................................................................................. 26

26. Basidiospores globose to subglobose ............................................................................................................................... Fulvifomes

26. Basidiospores ellipsoid to broadly ellipsoid....................................................................................................................................27

27. Skeletal hyphae restricted to the trama of tube layer ........................................................................................................ Phellinotus

27. Skeletal hyphae found throughout the basidiomata.........................................................................................................................28

28. Basidiomata resupinate.................................................................................................................................................. Fomitiporella

28. Basidiomata pileate ........................................................................................................................................................ Phellinus s.l.