Phellinus

Gomes-Silva, Allyne Christina, Ryvarden, Leif & Gibertoni, Tatiana Baptista, 2012, Two new species of Phellinus s. l. from the Brazilian Amazonia, Phytotaxa 67 (1), pp. 55-60 : 58-59

Key to species of Phellinus s.l. from the Brazilian Amazonia

1. Hymenial setae lacking or rare .................................................................................................................................... 2

- Hymenial setae present ................................................................................................................................................ 7

2. Hyphal system monomitic to dimitic; basidiospores hyaline, globose, dextrinoid ( Fomitiporia ).............................. 3

- Hyphal system dimitic; basidiospores yellowish to pale rusty brown, ellipsoid to globose, not dextrinoid ( Fulvifomes ) ........................................................................................................................................................................... 4

3. Basidiomata resupinate; basidiospores ovoid to subglobose, 6.5−8.5 × 5.5−7 µm ........................................................ ................................................................................................................................... F. punctata s.l. (P. Karst.) Murrill

- Basidiomata pileate; basidiospores subglobose, 5−6 × 4.5−5 µm .................................................................................. ...................................................................................................... F. apiahyna (Speg.) Robledo, Decock & Rajchenb.

4. Basidiomata resupinate ................................................................................................ F. umbrinellus (Bres.) Y.C. Dai

- Basidiomata pileate...................................................................................................................................................... 5

5. Pores 4−7 per mm ....................................................................................................... F. grenadensis (Murrill) Murrill

- Pores 7–10..................................................................................................................................................................... 6

6. Black line present in the context, basidiospores subglobose to ellipsoid, 4.5−6 × 4−5.5 µm, rusty brown.................. ................................................................................................................ F. fastuosus (Lév.) Bondartseva & S. Herrera

- Black line absent in the context, basidiospores subglobose to globose, 5–6 × 4–5 µm, pale golden yellow................. .................................................................................................................... F. merrillii (Murrill) Baltazar & Gibertoni

7. Basidiomata annual to perennial; hyphal system monomitic/dimitic; basidiospores hyaline, ellipsoid, allantoid to cylindric ( Fuscoporia ).................................................................................................................................................. 8

- Basidiomata perennial; hyphal system dimitic; basidiospores hyaline, ellipsoid to globose ( Phellinus s.l.) .......... 12

8. Basidiomata resupinate ................................................................................................................................................ 9

- Basidiomata pileate.................................................................................................................................................... 10

9. Pores 6−7 per mm; setal hyphae absent; basidiospores 5−7.5 × 22.5 µm ............................ F. ferrea (Pers.) G. Cunn.

- Pores 7−9 per mm; setal hyphae present; basidiospores 5−7 × 3−3.5 µm ................ F. ferruginosa (Schrad.) Murrill

10. Hymenial setae hooked ............................................................................... F. wahlbergii (Fr.) T. Wagner & M. Fisch. - Hymenial setae straight.............................................................................................................................................. 11

11. Basidiomata usually annual, glabrous to scrupose or hispid; hymenial setae 20−30 × 5−6 µm; basidiospores 4−5 × 3−3.5 µm ..................................................................................................... F. gilva (Schwein.) T. Wagner & M. Fisch.

- Basidiomata perennial, tomentose, ultimately glabrous in zones; hymenial setae 15−40 × 5−9 µm; basidiospores 4.5−6 × 3.5−5 µm ................................................................................................ F. senex (Nees & Mont.) Ghob. -Nejh.

12. Basidiomata resupinate .............................................................................................................................................. 13

- Basidiomata pileate to effused reflexed..................................................................................................................... 16

13. Setal hyphae with scattered protuberances ........................................................................................ P. sousae sp. nov.

- Setal hyphae absent.................................................................................................................................................... 14

14. Pores 7−9 per mm ......................................................................................... P. ferrugineovelutinus (Henn.) Ryvarden

- Pores <6 per mm ....................................................................................................................................................... 15

15. Pore surface reddish brown; hymenial setae straight, 12−20 × 4−8 µm; basidiospores globose, pale yellow to rusty brown, 3.5−4.5 µm in diameter........................................................................................ P.shaferi (Murrill) Ryvarden

- Pore surface greyish brown; hymenial setae hooked, 18−25 × 6−8.5 µm; basidispores ellipsoid, hyaline, 3.5−4.5 × 2.5−3.5 µm ................................................................................................................................... P. undulatus (Murrill)

16. Setal hyphae and/or tramal setae present................................................................................................................... 17

- Setal hyphae and/or tramal setae absent .................................................................................................................... 18

17. Tramal setae present; setal hyphae absent; hymenial setae present................................................. P. fibrosus sp. nov.

17. Tramal setae absent; setal hyphae present; hymenial setae absent .................................... P.noxius (Corner) G. Cunn.

18. Hymenial setal present............................................................................................................................................... 19

- Hymenial setal absent ................................................................................................................................................ 20

19. Basidiospores ovoid to subglobose, pale golden brown, 4.3−5.5 × 3.8−4.8 µm; pores 6−8 per mm............................. ........................................................................................................................... P. linteus (Berk. & M.A. Curtis) Teng

- Basidiospores globose, pale yellowish, 3−4 µm; pores 7−10 per mm ....................................... P. extensus (Lév.) Pat.

20. Basidiomata on Rhizophorae mangle ...................................................................... P. mangrovicus (Imazeki) Imazeki

- Basidiomata on other angiosperms............................................................................................................................. 21

21. Basidiospores globose, rusty brown, 4−5 µm; context bright yellowish brown and reddish in KOH ........................... .................................................................................................................................. P. rhytiphloeus (Mont.) Ryvarden

- Basidiospores globose to subglobose, hyaline to pale golden yellow, 4−6 µm; context cinnamon to fulvous and black in in KOH.................................................................................................................................................................... 22

22. Upper surface adpressed tomentose to velutinate with a black zone; pores 6−7 per mm ...... P. baccharidis (Pat.) Pat.

- Upper surface velutinate, soon glabrous, no black zone or cuticle; pores 8−10 per mm ...... P. griseoporus D.A. Reid