We have one widespread species here in North America.
- Irpex lacteus
This second list is names that have been used for Chicago Region, such as by Moffatt (1909) and Harper, and their current status.
- Irpex ambiguus = Hyphodontia spathulata [one 1902 collection at FH and one at UC].
- Irpex cinnamomeus = Hymenochaetopsis olivacea [common].
- Irpex fuscescens = Hymenochaetopsis olivacea.
- Irpex nodulosus Peck = Status unknown; assumed synonym of Irpex lacteus if not a Xylodon.
- Irpex tabacinus = Hymenochaete odontoides [Ginns (1998): only in southern United States.]
Taxon Details and Links
- Irpex Systema Orbis Vegetabilis 1: 81 (1825). Type: Sistotrema lacteum Fr., Observationes mycologicae 2: 266 (1818). ,
- I have not been able to find a phylogeny of species described as Irpex. The few papers that describe a new species of Irpex have ignored the other species described the previous decade(s). Apparently it is no longer a monotypic genus (having only one species).
- Wikipedia page for Irpex
- Moffatt, W. S. 1909. The Higher Fungi of the Chicago Region: Part I, The Hymenomycetes. Natural History Survey, Bulletin No. VII, Part I. Chicago Academy of Sciences. 156 pp., 24 plates. 10.5962/bhl.title.3605 [Read Part 1 online at Biodiversity Library; Part 2 not found]