Family Hymenochaetaceae Imazeki & Toki

Bulletin of the Government Forest Experimental Station Meguro 67: 24 (1954)

Type: Hymenochaete Lév. 1846

This is a group of polypore brackets and poroid crusts. The brown flesh turns blackish with KOH. Molecular phylogenetics has shuffled many species among the various genera and this process is still underway. Unfortunately Index Fungorum and Mycobank have not kept up with all of the name changes and they show contradictory usage of genus names. The primary genera are listed below. The following species have been identified for Chicago Region, though some require better documentation.

  1. Asterodon
  2. Aurificaria (part of Fulvifomes?)
  3. Fomitiporella
  4. Fomitiporia
  5. Fulvifomes (F. johnsonianus, F. robiniae)
  6. Fuscoporia (F. ferruginosa?, F. gilva)
  7. Hymenochaete (H. rubiginosa, and others) [includes Cyclomyces, Hydnochaete s.s.]
  8. Hymenochaetopsis (H. olivacea, H. tabacina) [replacement for Pseudochaete]
  9. Inocutis (I. dryophila, I. rheades)
  10. Inonotopsis
  11. Inonotus (I. cuticularis)
  12. Neomensularia
  13. Onnia
  14. Phellinidium
  15. Phellinopsis (P. conchata)
  16. Phellinus (P. cf. everhartii, P. igniarius group, and unknowns)
  17. Phylloporia
  18. Porodaedalea
  19. Pseudoinonotus (P. dryadeus)
  20. Sanghuangporus
  21. Tropicoporus
  22. Xanthoporia (X. radiata) [Mensularia]
The DNA phylogeny of this clade is roughly equivalent to the previous concept for Family Hymenochaetaceae with the exclusion of Coltricia and Coltriciella. For the phylogeny and explanation of segregated genera see Wagner and Fischer (2002). Tura et al. explains why Xanthoporia with inclusion of X. radiata X. nodulosa and notably X. andersonii take priority over Mensularia. Glaeser and Nakasone (2010) explain why names change in this order.
There are three species in this family with the same epithet. Two of them were given new epithets when moved to Hymenochaete. The first species Hymenochaete tabacina (Sowerby) Lév. falls outside of the clade Hymenochaete and was given a new genus name Pseudochaete but this name is illegitimate because there was already a genus Pseudochaete for algae; in 2016 the species was transferred to Hymenochaetopsis tabacina (Sowerby) S.H. He & Jiao Yang. The second species Cyclomyces tabacinus (Mont.) Pat. appears related to Hymenochaete rather than Inonotus and thus given the new name Hymenochaete porioides T. Wagner & M. Fisch. The third species Hydnochaete tabacina (Berk. & M.A. Curtis ex Fr.) Ryvarden was renamed as Hymenochaete odontoides S.H. He & Y.C. Dai.
Related links:
Glaeser, J. A., and K. K. Nakasone. 2010. Recent change in the nomenclature of Phellinus pini: What is Porodaedalea? In: Proceedings of the 6th western hazard tree workshop; 2010 June 14-18; Medford, OR. U.S. Department of Agriculture, Forest Service, Forest Health Technology Enterprise Team: 46-50. PDF available here.
Tura, D., I. V. Zmitrovich, S. P. Wasser, D. Raats, E. Nevo. 2012. Phylogenetic analyses of Phellinus s. l. and Inonotus s. l. (Hymenochaetales) inferred from rDNA ITS sequences and morphological data. Chapter 9, pp. 253-274. In: Systematics and Evolution of Fungi, edited by J. K. Misra, J. P. Tewari, S. K. Deshmukh. Progress in Mycological Research, 2. CRC Press.
Wagner, T., and M. Fischer, 2002. Proceedings towards a natural classification of the worldwide taxa Phellinus s.l. and Inonotus s.l., and phylogenetic relationships of allied genera. Mycologia 94(6): 998-1016.
Wu, F., L-W. Zhou, Y-C. Dai. 2016. Neomensularia duplicata gen. et sp. nov. (Hymenochaetales, Basidiomycota) and two new combinations. Mycologia, 108: 891–898.
Yang, J., L-D. Dai, S-H. He. 2016. Hymenochaetopsis nom. nov. proposed to replace Pseudochaete (Hymenochaetales, Basidiomycota) with descriptions of H. laricicola sp. nov and H. gigasetosa new to China. Mycological Progress 15:13. (8 pp.)
Zhou, L-W., J. Vlasák, C. Decock, A. Assefa, J. Stenlid, D. Abate, S-H. Wu, and Y-C. Dai. 2016. Global diversity and taxonomy of the Inonotus linteus complex (Hymenochaetales, Basidiomycota): Sanghuangporus gen. nov., Tropicoporus excentrodendri and T. guanacastensis gen. et spp. nov., and 17 new combinations. Fungal Diversity 77(1): 335-347.
Taxon links:
80883 MycoBank ; Index Fungorum