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    Root and Butt / Root and Stem Diseases (2)

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Image Subject Name Scientific Name Description
5444935 clinker polypore Inonotus obliquus sterile black conk of Inonotus obliquus (clinker, Siberian chaga) fungus on live Betula alleghaniensis (yellow birch)
5444936 clinker polypore Inonotus obliquus sterile black conk of Inonotus obliquus (clinker, Siberian chaga) fungus on live Betula alleghaniensis (yellow birch)
5444937 clinker polypore Inonotus obliquus sterile black conk of Inonotus obliquus (clinker, Siberian chaga) fungus on live Betula alleghaniensis (yellow birch)
5444939 clinker polypore Inonotus obliquus sterile black conk of Inonotus obliquus (clinker, Siberian chaga) fungus on live Betula alleghaniensis (yellow birch)
5444938 clinker polypore Inonotus obliquus sterile black conk of Inonotus obliquus (clinker, Siberian chaga) fungus on live Betula papyrifera (white birch)
1400128 Tomentosus root disease Onnia tomentosus Windthrown spruce in Inonotus pocket, in Quebec, Canada.
1400127 Tomentosus root disease Onnia tomentosus Decay in cross section of wood from butt of infected spruce. Quebec, Canada.
1949029 laminated root disease Phellinus weirii Close-up of brown crust-like mycelium overlaying white mycelium of Inonotus weirii on the upper portions of a Tsuga heterophylla root.
1949026 laminated root disease Phellinus weirii Inonotus weirii infection of Pseudotsuga menziesii, showing dead tree and trees with thinned crowns and yellowing.
1949027 laminated root disease Phellinus weirii Wind-thrown 60-year-old Pseudotsuga menziesii, showing advanced Inonotus weirii decay in the roots and root collar; note how the roots break close to the root collar, creating "root balls".
1949028 laminated root disease Phellinus weirii Reddish brown stain typical of infection by Inonotus weirii in a 60-year-old Pseudotsuga menziesii tree; infection does not usually extend much above 2-4 m up the bole in a living tree.

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