Name: Pycnoporus cinnabarinus (Jacq.) P. Karst.
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Copyright © 2010 Bob Zuberbuhler (Bob Z)
Copyright © 2017 Chris Foss (The Vault Dweller)
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Copyright © 2011 Hamilton
Version: 5
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First person to use this name on MO: Erlon
Editors: Jacob Kalichman, GALL Alain

Nomenclature: Notes on Taxonomy: [Edit]

Basionym: Boletus cinnabarinus Jacq.

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Brief Description:

Pycnoporus cinnabarinus is a wood-rotting fungus that forms a reddish-orange fruit body with spore-releasing pores on its undersurface. It is specifically a white rot fungus, meaning that it breaks down both cellulose and lignin in the cell walls of its host’s wood. It is also one of the three species belonging to the genus Pycnoporus, first formalized by P. Karsten in 1881. While Karsten initially only included P. cinnabarinus in Pycnoporus, mycologists have since added P. sanguineus and P. cossineus for a total of three species in the genus. Common fruit-body characteristics among these three species include growing in a semi-circular (half a circle) or amorphous-elongated shape, attaching to tree or log exteriors, growing hyphae of varying degrees of branching and wall thickness within a single fruit body, and forming pileus that ranges in color from a reddish-apricot color to a deep red-orange. Members of this genus are included in the Polyporaceae family but separated from the Polyporus genus. As a white rot fungus, P. cinnabarinus lives as a detritivore on hard wood trees, degrading cellulose, hemicellulose, and lignin found in cell wood walls. P. cinnabarinus occurs across the entire northern hemisphere in the north temperate zone, extending from central American & and north African latitudes to mid-Canada and northern Russia, and so can therefore withstand freezing temperatures. However, its growth rate is shown to decline significantly at temperatures above 30, and it is not found in tropical zones. The fruit body releases spores in the autumn and spring and can survive over the winter. Like all bracket fungi, P. cinnabarinus is believed to enter its hosts though injuries and other weak surface areas. P. cinnabarinus, however, is usually found on the dead hard-wood of deciduous trees and rarely on the dead wood of conifers.

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Created: 2011-05-05 11:23:01 MDT (-0600) by Erlon (Herbert Baker)
Last modified: 2017-10-25 17:58:10 MDT (-0600) by Jacob Kalichman (Pulk)
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