Biology Reference
In-Depth Information
Polyporus pargamenus
White Pocket Rot
of
dead sapwood in eastern United States but some-
times on living maple and other hardwoods.
Polyporus
Trichaptum abietinum (formerly
Polyporus
abietinus
Syn.
Hirshioporus abietinus
).
Pitted
Sap Rot
,
Hollow Pocket
,
White Pocket Rot
on
fir. May attack dead sapwood in wounds of living
trees.
sulphureus
Syn.
Laetiporus
sulphureus (see
Laetiporus sulphureus
), sul-
phur fungus.
Red Brown Heart Rot
,
Brown Cubi-
cal Rot
in heartwood of maple and other living
hardwoods and conifers, widespread on oak, bal-
sam, Douglas-fir and spruce.
Polyporus
▶
Poria
Basidiomycetes, Aphyllophorales
schweinitzii (see
Phaeolus
▶
schweinitzii
).
Root Rot
on pine.
Polyporus squamosus
White Mottled Heart
Rot
on maple, buckeye, birch and occasional on
living trees near wounds. Conks are annual,
fleshy, white to dingy yellow with a short, thick
lateral stalk, upper surface with broad appressed
scales, up to 18 inches wide.
Polyporus tomentosus var. circinatus Syn.
Inonotus
Pileus
resupinate,
thin, membranous;
tubes
wartlike, separate.
Junghuhnia
luteoalba (formerly
Poria
luteoalba
).
Brown Rot
of coniferous wood.
Perenniporia subacida (formerly
Poria
prunicola
).
White Rot
of cherry and other
Prunus
spp.
Phellinus
circinatus (see
Inonotus
laevigatus (formerly
Poria
▶
tomentosus
).
Root Rot
of sand pine.
Polyporus
laevigata
).
Red Mottle Rot
on
Prunus
spp.
Phellinus weirii (formerly
Poria weirii
).
Doug-
las-Fir Root Rot
. The disease is most destructive
to trees 70 to 150 years old, which are killed
in groups. The fungus can persist in dead
roots for a century. Less susceptible conifers
should be planted with judicious cutting of
infected stands.
Poria cocos
versicolor
Syn.
Coriolus
versicolor (see
Trametes versicolor
), rainbow
conk.
Sapwood Rot
.
Postia balsamea (formerly
Polyporus
balsameus
).
Balsam Butt Rot
of living balsam
fir, eastern hemlock, northern white-cedar,
western red-cedar, also prevalent on dead trees.
Advanced decay is brown, brittle, breaking
into large cubes, easily crushed to a clay-colored
powder. In living trees the rot column is usually
only 3 or 4 feet from ground. Sporophores are
shelving, up to 2 inches wide, with pale brown
upper surface with concentric zones, white
underneath.
Trametes versicolor (formerly
Polyporus
versicolor
Syn.
Coriolus versi-color
), rainbow
conk.
Sapwood Rot
. This is the most common
fungus on hardwood slash in woods and some-
times on conifers. The rot is soft, white spongy.
Heartwood of living catalpa may be decayed, the
fungus entering through wounds and dead
branches. The conks are thin, tough, leathery,
annual, up to 2 inches wide with a hairy or vel-
vety surface multicolored white, yellow, brown,
gray, and black. The undersurface is yellow or
white. This pathogen also causes wood decay and
decline of apple and has been reported as
Trametes versicolor
.
▶
Wolfiporia cocos
).
Root Rot
on roots of various trees, especially pine,
(see
▶
in
southeastern United States.
Poria luteoalba (see
Junghuhnia luteoalba
).
Brown Rot
of coniferous wood.
Poria prunicola (see
▶
▶
Perenniporia subacida
).
White Rot
of cherry and other
Prunus
spp.
Poria laevigata
Phellinus laevigatus
).
Red Mottle Rot
,on
Prunus
spp.
Poria subacida
Feather Rot
,
Spongy Root Rot
,
String Butt Rot
of living conifers and dead hard-
wood. Decay rarely extends more than 6 to 10
feet in the trunk. Irregular pockets run together
forming masses of white fibers; annual rings sep-
arate readily. Sporophores are white to straw-
colored to cinnamon-buff crusts forming sheets
several feet long on underside of fallen trunks or
on underside of root crotches or exposed roots of
living trees.
Poria weirii (see
(see
▶
Phellinus weirii
).
Douglas-
▶
Fir Root Rot
.
