Postia ptychogaster
Nordic J Bot. 16(2): 213. 1996.
Common Name: none
Synonyms: Oligoporus ptychogaster (F. Ludw.) Falck & O. Falck; Tyromyces ptychogaster (F. Ludw.) Donk; Ptychogaster albus Corda
For descriptions see Bernicchia, Bernicchia & Melo, Siegel & Schwarz, & Vizzini & Zotti
Solitary to scattered on coniferous wood, primarily spruce, rare on pine.
Unknown.
This strange polypore has both an asexual and sexual form. The asexual form is at first white, soon becomes a brown mass of chlamydospores. In the polypore sexual form the pore surface is at first white, becoming pale cream with angular pores.
Bernicchia, A. (2005). Polyporaceae s.l. (Fungi Europaei). Edizioni Candusso: Alassio, Italy. 807 p.
Bernicchia, A. & Gorjón, S.P. (2020). Polypores of the Mediterranean Region. Romar: Segrate, Italy. 903 p.
Ryvarden, L. & Melo, I. (2014). Poroid Fungi of Europe. Fungiflora: Oslo. 455 p.
Ryvarden, L. & Melo, I. (2022). Poroid Fungi of Europe 3rd Edition. Fungiflora: Oslo, Norway. 430 p.
Siegel, N. & Schwarz, C. (2016). Mushrooms of the Redwood Coast. Ten Speed Press: Berkeley, CA. 601 p.
Stalpers, J.A. (2000). The genus Ptychogaster. Karstenia 40: 167-180.
Stalpers, J.A., Redhead, S.A., May, T.W., Rossman, A.Y., Crouch, J.A., Cubeta, M.A., Dai, Y.-C., Kirschner, R., Langer, G.J., Larsson, K.-H., Mack, J., Norvell, L.L., Oberwinkler, F. & Papp, V. (2021). Competing sexual-asexual generic names in Agaricomycotina (Basidiomycota) with recommendations for use. IMA Fungus 12(1): 22.
Vizzini, A. & Zotti, M. (2008). Postia ptychogaster, an unusual two-stage polypore new to Italian mycobiota. Mycotaxon 103: 319-328. (PDF)
