Name: Pycnoporus sanguineus
Author: (L.) Murrill
Citation: Bull. Torrey bot. Club 31(8): 421 (1904) / Murrill, W.A. 1904. The Polyporaceae of North America: VIII. Hapalopilus, Pycnoporus and new monotypic genera. Bulletin of the Torrey Botanical Club. 31(8):415-428
Preferred Synonyms:Trametes sanguinea (L.) Lloyd
Misspellings: Trametes sanguineus
Pycnoporus sanguineus is most notably characterized by its red color. Termed “red fungus,” P. sanguineus is a plant pathogen most typically found at elevations ranging from 0 – 8,704ft in tropical or subtropical regions of the world. Mainly growing on dead or decaying wood, fruiting bodies may grow individually or clustered, sometimes overlapping. The fruiting bodies of P. sanguineus contain both a cap and a stem. The caps are characterized by a bright red/orange color and can vary in both diameter and thickness. Normally, caps range from 3 – 14cm in diameter and can grow up to 5mm in thickness. Some of the most distinguishing characteristics of the caps other than the color are their texture. In general, caps appear to be smooth, leathery, or corky in appearance. They also display fairly rigid edges transitioning in non – fading colors. On average, stems range from 2 – 7cm but are sometimes absent depending on their location upon its nutrient source. Located directly underneath the caps are the gills. Contained within the gills are hyaline hyphae equipped with thin walled clamps and microscopic spores called basidiospores. The basidiospores appear short, ovate, and smooth. The basidiospores are responsible for the production of fruiting bodies and are distributed within the environment by falling branches or other organic debris. (1)
As Rocky says when an organism has multiple synonyms which are legitimate names under the International Code of Nomenclature, MO’s “Preferred Synonym” is — like it says — a preference. It generally corresponds to Index Fungorum’s “Current Name”.
I’m not completely sure what Rocky means by his second paragraph of that comment. But I do want to point out that MO does not mandate the use of the “Preferred Synonym”. You can use and vote for any name you want, including a name that’s illegitimate, incorrect, and/or not recognized.
Note that both names here share the same specific epithet, all that has changed is the generic position, and gender. When combinations occur between taxa with different epithets, the older epithet takes precedence. When combinations occur that result in a change of generic position, you end up with synonymous names describing the same organism from the context of different systematic concepts.
We are discussing two related (but different) things here, nomenclature and taxonomy
Nomenclature: The set of rules for fungal and botanical nomenclature (http://www.iapt-taxon.org/nomen/main.php) follows essentially the same principle, that the older name for an organism published according to the rules should be used (in reality is a bit more complicated)
Taxonomy: Through time, different authors may decide to classify the same organism in different genera. In our case here some people will classify this species in the genus Trametes and others in the genus Pycnoporus. That is a taxonomic decision that has nothing to do with nomenclatural rules. What the nomenclatural rules will do is tell you in each of the possible taxonomic scenarios which would the correct name for the organism.
I hope this helps
In zoology the first published name is the only valid one. Otherwise one could publish a new name for the same organism every day.
The older taxon does not become invalidated. Taxa become invalid in cases where they did not adhere to the nomenclatural code at the time of their authorship. When you see that Trametes sanguinea = Pycnoporus sanguineus, it literally means that both names are 100% valid, and refer to the same organism.
This concept of “preferential” names at MO is useful in that it keeps users informed about the latest taxonomic changes, but the fact that it is mandatory, and implies nomenclatural “correctness” is absurd.
How can Trametes sanguinea and Pycnoporus sanguineus both be synonyms of each other and be considered valid at the same time?
Created: 2010-10-03 15:18:31 CDT (-0500) by A. Cortés-Pérez (Alonso)
Last modified: 2018-02-02 21:09:49 CST (-0600) by Jacob Kalichman (Pulk)
Viewed: 1349 times, last viewed: 2019-06-25 06:34:22 CDT (-0500)