Biology Reference
In-Depth Information
Fomes igniarius (see
Phellinus igniarius
).
White Spongy Rot
,
White Trunk Rot
,
Heart
Rot
, on a wide variety of hardwoods but not on
conifers.
Fomes officinalis (Fomitopsis officinalis) (see
▶
Heterobasidion annosum (formerly
Fomes
annosus
).
Heart Rot
,
Root and Butt Rot
,
Spongy
Sap Rot
of conifers, sometimes hardwoods; also
Root Rot
on juniper and rhododendron. Infection
is through wounds. Tissue thin, mycelial felts are
formed between bark and wood, which is pinkish
to violet in incipient states. In advanced stages
white pockets are formed in wood. Perennial
conks are bracket-shaped to flat layers, upper
surface zonate, light to dark grayish brown,
undersurface beige with small pores. Infection is
sometimes through dead roots from mycelium
growing through soil, sometimes by spores
washed by rain or carried by rodents.
Perenniporia fraxinophila (formerly
Fomes
fraxinophilus
).
White Mottled Rot
of ash,
a heartwood rot most common on white ash,
also on green ash and willow. Conks are up to
a foot wide, with dark, rough upper surface,
brownish underneath, appearing first when
wood has decayed only a short distance. Infection
is usually through branch stubs.
Phellinus everhartii (formerly
Fomes
everhartii
).
Yellow Flaky Heart Rot
of living
hardwoods, including birch and beech and espe-
cially oaks. Infection is usually limited to the
lower trunk, and the flaky character is because
the decay is more rapid between rays. There are
narrow, dark brown zone lines. Gnarled swellings
on the trunk indicate sapwood invasion. The
conks are perennial, hard, woody, shelf-shaped,
up to a foot wide, with the yellow-brown upper
surface becoming black, charred, rough, concen-
trically grooved with age. The undersurface is
reddish brown.
Phellinus ingiarius (formerly
Fomes igniarius
(
Phellinus igniarius
)).
White Spongy Rot
, white
trunk rot, heart rot, on a wide variety of hard-
woods but not on conifers. Aspen and birch are
particularly susceptible. Decay is mostly con-
fined to heartwood, but in yellow birch living
sapwood is killed, causing cankers on the trunk.
In an advanced stage the decay is soft, whitish,
with fine black lines running through it. The
conks are perennial, hard, woody, thick, usually
hoof-shaped, up to 8 inches wide, the upper sur-
face gray to black, becoming rough and cracked
with age; undersurface is brown and the interior
▶
Fomitopsis officinalis
).
Brown Trunk Rot
of
conifers infecting heartwood of living larch and
other trees.
Fomes pini (Trametes pini) (see
Phellinus
pini
).
Red Ring Rot
, white pocket rot, of conifers,
especially Douglas-fir, larch, pine and spruce,
causing heavy forest losses.
Fomes pinicola
▶
Fomitopsis pinicola
).
Brown Crumbly Rot
of many conifers and some
hardwoods - maple, birch, beech, hickory,
peach - usually on dead trees, occasionally in
heartwood of living trees.
Fomes
(see
▶
rimosus (see
Phellinus
robiniae
).
▶
Heart Rot
on locust.
Fomes robustus (see
Phellinus robustus
).
Heart Rot
of cacti and other desert plants; of
oak, fir, juniper, in different strains.
Fomes roseus (see
▶
Fomitopsis rosea
).
Brown
Pocket Rot
, cubical rot of heartwood of living
conifers, particularly Douglas-fir.
Fomitopsis officinalis (formerly
Fomes
officinalis
(
Fomitopsis officinalis
)).
Brown
Trunk Rot
of conifers infecting heartwood of liv-
ing larch and other trees. Intensely white spore
surface; very bitter, known as the quinine fungus.
Fomitopsis pinicola (formerly
Fomes pinicola
).
Brown Crumbly Rot
of many conifers and some
hardwoods - maple, birch, beech, hickory,
peach - usually on dead trees, occasionally in
heartwood of living trees. Sporophores are
shelf-to hoof-shaped, 2 to 10 inches across, some-
times up to 2 feet, upper surface gray to black,
often with a red margin, underside white to yel-
low when fresh.
Fomitopsis rosea (formerly
Fomes roseus
).
Brown Pocket Rot
, cubical rot of heartwood of
living conifers, particularly Douglas-fir. Decay
originates in upper part of bole. Wood is yellow
to reddish brown, soft, breaking into irregular
cubes. Woody bracket conks, up to 6 inches
wide, have black tops and rose undersurface.
Infection is through dead branch stubs and broken
tree tops.
▶
