Ceriporiopsis placenta f. roseomaculata (P.Karst.) Domański (1965)
Physisporus albolilacinus P.Karst. (1892)
Poria albolilacina (P.Karst.) Sacc. (1895)
Poria monticola Murrill (1920)
Poria placenta f. monticola (Murrill) Domański (1972)
Poria carnicolor D.V.Baxter (1941)
Poria microspora Overh. (1943)
Ceriporiopsis placenta f. microspora Domański (1965)
Rhodonia placenta is a species of
crust fungus in the family
Fomitopsidaceae. A
brown rot species, it is found in China, Europe, and North America, where it grows on decaying
conifer wood.[1]
Taxonomy
The species has undergone several changes in generic placement since it was originally
described as a species in the genus Polyporus by
Elias Magnus Fries in 1861. Although formerly placed in the genus Oligoporus or Postia,
molecular analysis has revealed that this species is phylogenetically distant from species in those genera, appearing instead in a separate
clade near Antrodia.[2]
Synonymy
Rhodonia placenta has acquired an extensive
synonymy in its
taxonomic history. In addition to having been transferred to several polypore genera, it is considered to be the same species as Poria incarnata described by
Christian Hendrik Persoon in 1794, as well as
Petter Karsten's Bjerkandera roseomaculata (1891), and Physisporus albolilacinus (1892). Other taxonomic synonyms include
William Alphonso Murrill's Poria monticola,
Dow Baxter's Poria carnicolor (1941), and
Lee Oras Overholts' Poria microspora (1943).[3]
Description
The
fruiting body is spread out (effused) on its
substrate, poroid, fairly thick, juicy and soft, with a pale rose or white colouring. It has a monomitic
hyphal system (containing only generative hyphae), and the hyphae have
clamp connections. These hyphae are initially thin-walled but become thick-walled in mature fruit bodies. The
spores are cylindric.[2]