wine-red netcrust(Leacock). Many European names.
- Epithet = yew-tree dweller. Genus = resembling Merulius.
- Annual effused poroid crust, spreading over wide area; up to 4 mm thick. Reddish to dark purple. Margin white, broad, contrasting with pores. Texture tough and waxy when fresh, hard and brittle when dry, somewhat separable. Pores angular, 2 to 4 per mm, tubes with continuous hymenium over the dissepiments. Context white and fibrous, up to 2 mm thick. Microscopic characters: spores allantoid (curved), 4.5–6 × 1–2 µm. Hyphal system monomitic, clamps absent. Cystidia present as subulate smooth cystidioles that are the same size as the basidia.
- Similar species
- Gloeoporus dichrous has clamped generative hyphae, cystidioles absent, smaller spores, and occurs on hardwoods. Ceriporia purpurea [group] has a lighter more reddish color, a distinct poroid hymenophore, and longer spores (5-7.5 µm). (Gilbertson and Ryvarden 1986). Ceriporia spissa has bright orange pores when fresh and the pores are very small.
- White rot saprobe on conifers, such as pine and spruce, also Douglas fir, hemlock; rarely on aspen (a hardwood). Reported also on birch and gorse in Europe.
- Spring, summer, fall, may over-winter.
- Circumglobal in boreal coniferous zone and southward with confers. Also in Australia, New Zealand. Collections in southern Illinois were on pine.
Taxon Details and Links
- Meruliopsis taxicola in Parmasto, Izv. Akad. Nauk Estonsk. S.S.R., Ser. Biol. 8:274 (1959) ,
- ≡ Basionym: Xylomyzon taxicola , Mycologia Europaea 2: 32 (1825)
- ≡ Sanctioned: Xylomyzon taxicola Elench. Fung. 1:62. 1828. ,
- ≡ Gloeoporus taxicola Mycotaxon 22 (2): 364 (1985) ,
- ≡ Caloporus taxicola Norwegian Journal of Botany 20 (1): 9 (1973) ,
- = ?
Systema Naturae 2 (2): 1435 (1792)
- ≡ Sanctioned: Polyporus rufus Syst. Mycol. 1:379. 1821. ,
- ≡ Poria rufa Grevillea 14:110. 1886. ,
- France. Collected by Chaillet on trunk of Taxus baccata (English yew or common yew).
- The species has also been placed in Merulius, Poria, Merulioporia, Ceriporia, and Caloporus.
- Regarding Poria rufa: Jung et al. (2018) does not list it as a synonym. Index Fungorum treats it as a synonym while Mycobank does not. J.L. Lowe (1966) lists it as a synonym. Both names are sanctioned by Fries and "rufa" is the older epithet. I don't know why it does not then take priority. Several authors say the type is lost or that there are no specimens at Kew. Donk (1974) lists the taxon as a nomen dubium.
- Les champignons du Québec [French version of Gilbertson and Ryvarden (1986)].
- See descriptions at Mycobank link (below).
- Gilbertson, R.L., L. Ryvarden. 1986. North American Polypores. Volume 1: Abortiporus - Lindtneria. Fungiflora, Oslo, Norway. pp. 1 - 433.
- Jung, P. E., H. Lee, S.-H. Wu, T. Hattori, M. Tomšovský, M. Rajchenberg, M. Zhou, Y. W. Lim. 2018. Revision of the taxonomic status of the genus Gloeoporus (Polyporales, Basidiomycota) reveals two new species. Mycological Progress (2018) 9 pp. DOI: 10.1007/s11557-018-1400-y
- Mushroom Observer