Piloderma croceum Erikss. & Hjortst. + Picea

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Literature

references
  Brand F (1991) Ektomykorrhizen an Fagus sylvatica. Charakterisierung und Identifizierung, ökologische Kennzeichnung und unsterile Kultivierung. Libri Botanici 2: 1-229.
Haug I (1987) Licht- und elektronenmikroskopische Untersuchungen an Mykorrhizen von Fichtenbeständen im Schwarzwald. Diss Univ München.
Haug I, Pritsch K (1992) Ectomycorrhizal types on spruce (Picea abies L. Karst.) in the Black Forest. A microscopical atlas. Kernforschungszentrum Karlsruhe.
Mikola P (1962) The bright yellow mycorrhiza of raw humus. Proc 13th IUFRO congr, Wien, Sect 124-4.
Raidl S (1997) Studien zur Ontogenie an Rhizomorphen von Ektomykorrhizen. Bibl Mycol 169: 1-184.

Morphology

Morphology of the mycorrhizal system
ramification presence-type
  monopodial-pinnate
rhizomorphs as stout, short, conical structures presence-abundance
  absent
rhizomorphs as short mycorrhiza-like outgrowths with blunt tips presence
  absent
rhizomorphs presence
  present
rhizomorphs frequency
  abundant
exploration type
  medium distance fringe
Morphology of the unramified ends
shape
  bent
shape {of distal end}
  not inflated, cylindric
colour
  yellow
very tip colour
  yellow
older parts colour
  yellow
mantle cortical cells visibility
  not visible
mantle {distinct} surface visibility
  present
mantle transparency
  not transparent
mantle laticifers visibility
  absent
mantle dots presence-colour
  absent
mantle carbonizing presence
  absent
mantle surface {in general} habit
  silvery
or    not smooth
mantle surface {in detail} kind
  loosely cottony
or    loosely stringy
emanating hyphae presence
  present
emanating hyphae abundance
  abundant
Morphology of rhizomorphs
diameter
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.25 mm    Upper value of unspecified range (could be µ+s.d., but not known)
cross-section shape
  round or roundish
or    flat
colour
  concolourous to mantle
ramification kind-frequency
  repeatedly into smaller filaments
connection to mantle kind
  oblique
origin location
  not specific
or    distal
margin habit
  hairy
dimorphism presence
  absent
Morphology of sclerotia
presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
emanating elements presence-type
  rhizomorphs
Anatomy of laticifers
presence
  absent
Anatomical features of the mantle
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
organisation
  plectenchymatous
mantle type
  hyphae rather irregularly arranged and no special pattern discernible (type B)
cell pigment location-colour
  epimembranaceously yellowish
cell diameter
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
cell wall surface habit
  rough
and    with few crystals
Anatomy of the middle mantle layer
organisation
  plectenchymatous
Anatomy of the inner mantle layer
organisation
  plectenchymatous
hyphae arrangement
  ring-like
septa clamps presence
  absent
cell diameter
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
Anatomy of the mantle in longitudinal section
mantle thickness {apart from tip}
40 µm    Mean (= average)
mantle different layers presence
  not discernable
outer mantle layer organisation
  plectenchymatous
middle mantle layer organisation
  plectenchymatous
inner mantle layer organisation
  plectenchymatous
unlayered mantle hyphae radially diameter
1.7 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2.3 µm    Upper value of unspecified range (could be µ+s.d., but not known)

Anatomy of the tannin cells in longitudinal section
presence
  present
rows number
1     Mean (= average)
shape
  tangentially-oval, -elliptic or -cylindrical, and oriented in parallel to root axis

Anatomy of the cortical cells in longitudinal section
anatomy mantle longitudinal section cortical (epidermal) cells shape
  tangentially-oval to -elliptic or -cylindrical, and oriented in parallel to root axis

Anatomy of the Hartig net in longitudinal section
anatomy mantle longitudinal section hyphal cells around tannin cells shape
  roundish
anatomy mantle longitudinal section hyphal rows around tannin cells number
  one
or    two
anatomy mantle longitudinal section hyphal cells around cortical (epidermal) cells shape
  roundish
anatomy mantle longitudinal section hyphal rows around cortical (epidermal) cells number
  one
Anatomy of the mantle in cross-section
mantle different layers presence
  not discernible
outer mantle layer organisation
  plectenchymatous
middle mantle layer organisation
  plectenchymatous
inner mantle layer organisation
  plectenchymatous

Anatomy of the tannin cells in cross-section
presence
  present


Anatomy of the emanating elements in general
backwards-oriented ramifications presence
  present
backwards-oriented clamps presence
  absent
anastomoses surface habit
  rough or with crystals
anastomoses anastomosal bridge thickness {relative to hyphae}
  as thick as
Anatomy of cystidia


Anatomy of emanating hyphae
cell pigment location-colour
  epimembranaceously yellowish
drops of exuded pigment presence
  present


Anatomy of the septa of emanating hyphae
clamps presence
  absent
clamps hole presence
  absent
clamps blister-like structure {at basis} presence
  absent


Anatomy of the cells of emanating hyphae
anatomy emanating elements emanating hyphae cell diameter
2.5 µm    Mean (= average)
anatomy emanating elements emanating hyphae cell wall surface habit
  rough of warts
or    with crystals
or    without lens-shaped appositions
or    without spindle-shaped appositions
anatomy emanating elements emanating hyphae cell wall surface structures shape
  hemispherical warts

Anatomy of the crystals occouring in emanating hyphae
presence shape
  acicular
orientation
  transversely

Anatomy of rhizomorphs
type
  undifferentiated; hyphae rather loosely woven and of uniform diameter
(type A)
gelatinous matrix presence
  absent

Anatomy of hyphae in rhizomorphs
ampullate, trumpet-like inflated presence
  absent
Anatomy of vessel-like or thickened hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of central non-vessel-like hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of peripheral hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of solitary thick-walled hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of chlamydospores
presence
  absent
Anatomy of haustoria
{of ectomycorrhiza former} presence
  absent
Ultrastructure
septal pores type
  as dolipores with perforated parenthesome
mantle matrix presence-kind
  absent

Ecology

substrate
  in organic layer
{occurence in} humus type
  raw humus
geographic occurrence continent
  Europe

Tree

plant family
  Pinaceae
plant genus
  Picea
plant habitat kind
  forests, woods

Fungus

family
  Atheliaceae ("Corticiaceae")
fruitbodies growth habit
  epigeous
or    corticioid

Remarks

public notes
  Mycorrhizae in water whitish yellow, light yellow or even white after a while.

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