Lenzites betulina

Scientific name:   Lenzites betulina (L.) Fr.
Derivation of name:   Lenzites is named for the mycologist
H. O. Lenz; betulina means "inhabiting birch trees" although
birch (Betula) is only one of many tree genera occurring as
a substrate.
Synonymy:   Daedalea betulina Fr.
Common names:   Multicolor gill polypore.
Phylum:   Basidiomycota
Order:   Polyporales
Family:   Polyporaceae
Occurrence on wood substrate:  Saprobic; solitary or
grouped on dead deciduous and conifer wood; July through
December. 
Dimensions:  Caps 3-10 cm wide.   
Upper surface:  Covered with coarse hairs; concentrically
zoned with various colors, older specimens sometimes tinted
green with algae.
Pore surface: White to creamy-white; gill-like.
Edibility: Inedible.
Comments: The gills are tough and leathery, unlike the gills
of the true gilled mushrooms. The pores of this poroid fungus
develop into gill-like structures.

More information at MushroomExpert.com:   


Figure 1. Lenzites betulina on a dead branch. Photo ©
Gary Emberger.


Figure 2. Zonate specimens but not particularly colorful.
Photo © Gary Emberger.


Figure 3. Colorful concentric zonation with a little green
thrown in (from the growth of algae) for good measure.
Photo © Gary Emberger.


Figure 4. Turning over the cap reveals the distinctive gill-like
structures. Photo © Gary Emberger.


Figure 5. A close-up of the gills. Photo © Tom Volk.

 

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