|Copyright: Marco Della Maggiora (Sarcodon)
|Date Taken: 2006-02-03|
|Photo Version: Original Version|
|Date Submitted: 2006-02-03 4:50|
|[Note Guidelines] Photographer's Note|
Identifying this specie is very easy, even without verification of the microscopic features. However I decided to introduce it because it is rarely carried on books. Only books specialized on lignicolous fungi deal with it.
Species: Oligoporus placentus (Fries) Gilbert & Ryvarden
Oligoporus placentus was published by Elias Magnus Fries as Polyporus placentus on Ofvers. K. VetenskAkad. Forh., pag. 30 in 1861. It was recombined by Gilbert & Ryvarden in Oligoporus genus with a publication on Mycotaxon 22(2): 365 in 1985.
Synonym: Postia placenta (Fries) Larsen & Lombard.
Basidiocarps annual, completely resupinate, widely effused, fleshy at first then hard and brittle, 0.5-1 cm thick. Pore surface pink to lilac, cream to salmon colour, pale ochraceous when old or dry. Pores round-angular 3-4 per mm.
Hyphal system monomitic; generative hyphae hyaline, flexuous, branched, with clamps, 2.5-5.5 micron wide. Cystidia absent, but hymenial cystidioles numerous. Basidia clavate, hyaline, with basal clamps, 4 spored. Basidiospores hyaline, smooth, thin-walled, cylindrical to slightly curved, 5-6.5 x 2-2.5 micron.
Habitat and vegetative life:
It grows on dead wood of conifers, usually on stumps or log without bark. It generates cubic brown caries with a rapid and intensive decomposition of the substrate. It soon disappears because it is destroyed by insects. It was found on Larix decidua and Picea abies (the specimen in the photo). Not common.
The pink colour in young specimens makes it unmistakable. When it is old we have got to analyse the microscopic features.
Hope you like.
nardophoto, red45, petrudamsa, extramundi, Hormon_Manyer has marked this note useful
Only registered TrekNature members may rate photo notes.
- [2006-02-03 6:23]
This isn't maybe very showy photo, but definitelly with TN spirit! Artistic quality isn't most important here - subject, very interesting note and your work are enought for high rating of this post. I like it.
Good illustrated note. Indeed I can't recall seing this one in any guides or identification books I've seen.
Thanks very much Marco for this photo, and for your work with the ones I sent to you.
I have never came across this one, but I admit I began to be interested on this kind of "plasmatic" subjects quite recently, and you are right that the info about them is very limited, at least for me.
Please have alook at THIS corticoid, I am not sure at all about what I write on the note.
Thanks very much for the great document, it has been an honour to read about this one :)
Best regards, Felipe.