Lactarius chrysorrheus (Fr.) Fr. + Quercus

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– Enlarged view –

Literature

• references
  Luppi AM, Gautero C (1967) Ricerche sulle micorrize di Quercus robur, Q. petraea e Q. pubescens in Piemonte. Allionia 13: 129-148.
Palfner G (1998) Lactarius chrysorrheus. In Agerer R (ed) Colour Atlas of Ectomycorrhizae, plate 121, Einhorn-Verlag, Schwäbisch Gmünd.
Palfner G, Agerer R (1996) Die Ektomykorrhizen von Lactarius chrysorrheus und L. serifluus an Quercus robur. Sendtnera 3: 119-136.

Morphology

Morphology of the mycorrhizal system
• length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
23 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• ramification presence-type
  monopodial-pinnate
or    monopodial-pyramidal
• ramification orders
0     Lower value of unspecified range (could be µ-s.d., but not known)
3     Upper value of unspecified range (could be µ+s.d., but not known)
• abundance
  abundant, dense
• main axis diameter
0.3 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.5 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• 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
Morphology of the unramified ends
• shape
  straight
or    bent
• shape {of distal end}
  not inflated, cylindric
• length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
2 mm    Upper value of unspecified range (could be µ+s.d., but not known)
3 mm    Maximum value
• diameter
0.3 mm    Mean (= average)
0.4 mm    Maximum value
• colour
  ochre, yellowish brown
or    white
• older parts colour
  dark brown
• mantle cortical cells visibility
  not visible
• mantle {distinct} surface visibility
  present
• mantle transparency
  not transparent
• mantle laticifers visibility
  present
• mantle secreted latex {after scratching mantle} presence
  present
• mantle secreted latex {after scratching mantle} colour-habit
  white, remaining white after some minutes
• mantle dots presence-colour
  absent
• mantle carbonizing presence
  absent
• mantle surface {in general} habit
  shiny
or    smooth
• emanating hyphae presence
  present
• emanating hyphae abundance
  infrequent
Morphology of rhizomorphs
• diameter
0.007 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.19 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• cross-section shape
  round or roundish
• colour
  concolourous to mantle
or    brown
or    orange
or    whitish
• connection to mantle kind
  oblique
• margin habit
  smooth
• dimorphism presence
  absent
Morphology of sclerotia
• presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
• emanating elements presence-type
  rhizomorphs
• blue granules presence
  absent
Anatomy of laticifers
• presence
  absent
or    present
• location
  middle mantle layer
or    inner mantle layer
or    rhizomorphs
• shape
  straight and even
or    worm-like, uneven
• ramification presence-abundance
  abundant
• cell diameter
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
8 µm    Upper value of unspecified range (could be µ+s.d., but not known)
10 µm    Maximum value
Anatomical features of the mantle
• matrix presence
  present
• matrix location
  outer mantle layer {apart from tip}
or    outer mantle layer {of ectomycorrhizal tip}
or    middle mantle layer
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
• organisation
  pseudoparenchymatous
• organisation {if pseudoparenchymatous} cell shape
  epidermoid, puzzle-like, jig-saw-shaped
• mantle type
  epidermoid cells bearing a hyphal net (type Q)
• hyphal net cells shape
  triangular with obtuse ends
and    with roundish lobes
• hyphal net cells diameter
8 µm    Minimum value
14 µm    Mean (= average)
18 µm    Maximum value
• hyphal net cell walls habit
  faint, delicate, inconspicuous, rather thin
• matrix kind
  not gelatinous
• pores between cells presence
  absent
• hyphae hyphal junctions angle {between}
  ca. 120°
• septa clamps presence
  absent
• cell diameter
5 µm    Minimum value
11 µm    Mean (= average)
16 µm    Maximum value
• cell length
5 µm    Minimum value
10 µm    Mean (= average)
20 µm    Maximum value
• cell density
6     Minimum value
9     Mean (= average)
11     Maximum value
• cell wall thickness
0.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
1 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell wall surface habit
  smooth
• cell wall projections presence
  present
• cell wall projections abundance
  abundant
• cell wall projections shape
  even in thickness
and    thicker at distal end
• drops of exuded pigment presence
  absent
Anatomy of the middle mantle layer
• organisation
  plectenchymatous
• matrix kind
  not gelatinous
• hyphae arrangement
  plectenchymatous, without pattern
• cell diameter
3 µm    Minimum value
4 µm    Mean (= average)
5 µm    Maximum value
• cell wall thickness
0.5 µm    Mean (= average)
• cell wall surface habit
  smooth
Anatomy of the inner mantle layer
• organisation
  plectenchymatous with pseudoparenchymatous nests of cells
• hyphae arrangement
  ring-like
• septa clamps presence
  absent
• cell diameter
2 µm    Minimum value
4 µm    Mean (= average)
5 µm    Maximum value
Anatomy of the outer mantle layer of the ectormycorrhizal tip
• anatomy mantle outer mantle layer {of ectomycorrhizal tip} organisation
  pseudoparenchymatous
• anatomy mantle outer mantle layer {of ectomycorrhizal tip} matrix kind
  not gelatinous
• anatomy mantle outer mantle layer {of ectomycorrhizal tip} hyphae diameter
2 µm    Minimum value
5 µm    Mean (= average)
7 µm    Maximum value
• anatomy mantle outer mantle layer {of ectomycorrhizal tip} cell density
9     Minimum value
14     Mean (= average)
23     Maximum value
Anatomy of the mantle in longitudinal section
• mantle thickness {apart from tip}
10 µm    Minimum value
20 µm    Lower value of unspecified range (could be µ-s.d., but not known)
30 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• mantle different layers presence
  discernable
• outer mantle layer organisation
  pseudoparenchymatous
• outer mantle layer hyphae tangentially length
5 µm    Minimum value
8 µm    Mean (= average)
12 µm    Maximum value
• outer mantle layer hyphae radially diameter
1 µm    Minimum value
2 µm    Mean (= average)
3 µm    Maximum value
• middle mantle layer organisation
  plectenchymatous
• middle mantle layer hyphae tangentially length
4 µm    Minimum value
5 µm    Mean (= average)
7 µm    Maximum value
• middle mantle layer hyphae radially diameter
2 µm    Minimum value
3 µm    Mean (= average)
4 µm    Maximum value
• inner mantle layer organisation
  plectenchymatous
• inner mantle layer hyphae tangentially length
3 µm    Minimum value
6 µm    Mean (= average)
12 µm    Maximum value
• inner mantle layer hyphae radially diameter
2 µm    Minimum value
4 µm    Mean (= average)
5 µm    Maximum value
• unlayered mantle hyphae radially diameter
3.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
8.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• laticifers diameter
4 µm    Minimum value
7 µm    Mean (= average)
11 µm    Maximum value

Anatomy of the tannin cells in longitudinal section
• presence
  absent

Anatomy of the cortical cells in longitudinal section
• anatomy mantle longitudinal section cortical (epidermal) cells shape
  radially-oval to -elliptic, oriented obliquely
• anatomy mantle longitudinal section cortical (epidermal) cells tangentially length
15 µm    Minimum value
18 µm    Mean (= average)
27 µm    Maximum value
• anatomy mantle longitudinal section cortical (epidermal) cells radially diameter
28 µm    Minimum value
40 µm    Mean (= average)
50 µm    Maximum value
• anatomy mantle longitudinal section cortical (epidermal) cells mean shape-ratio CCq (ECq)
0.45     Mean (= average)

Anatomy of the Hartig net in longitudinal section
• presence
  present
• kind
  periepidermal
or    paraepidermal
• structure {in plan view}
  of palmetti type
• lobes width
2 µm    Minimum value
3 µm    Mean (= average)
5 µm    Maximum value
Anatomy of the mantle in cross-section
• mantle different layers presence
  discernible
• outer mantle layer organisation
  pseudoparenchymatous
• outer mantle layer hyphae tangentially length
5 µm    Minimum value
8 µm    Mean (= average)
12 µm    Maximum value
• outer mantle layer hyphae radially diameter
1 µm    Minimum value
2 µm    Mean (= average)
3 µm    Maximum value
• middle mantle layer organisation
  plectenchymatous
• middle mantle layer hyphae tangentially length
4 µm    Minimum value
5 µm    Mean (= average)
7 µm    Maximum value
• middle mantle layer hyphae radially diameter
2 µm    Minimum value
3 µm    Mean (= average)
4 µm    Maximum value
• inner mantle layer organisation
  plectenchymatous
• inner mantle layer hyphae tangentially length
3 µm    Minimum value
6 µm    Mean (= average)
12 µm    Maximum value
• inner mantle layer hyphae radially diameter
2 µm    Minimum value
4 µm    Mean (= average)
5 µm    Maximum value
• laticifers diameter
4 µm    Minimum value
7 µm    Mean (= average)
11 µm    Maximum value

Anatomy of the tannin cells in cross-section
• presence
  absent

Anatomy of the cortical cells in cross-section
• anatomy mantle cross-section cortical (epidermal) cells shape
  round
• anatomy mantle cross-section cortical (epidermal) cells tangentially length
11 µm    Minimum value
15 µm    Mean (= average)
20 µm    Maximum value
• anatomy mantle cross-section cortical (epidermal) cells radially diameter
7 µm    Minimum value
12 µm    Mean (= average)
20 µm    Maximum value
• anatomy mantle cross-section cortical (epidermal) cells mean shape-ratio CCq
1.25     Mean (= average)

Anatomy of the Hartig net in cross-section
• anatomy mantle cross-section hyphal rows around tannin cells number
  one
• anatomy mantle cross-section hyphal cells around cortical (epidermal) cells thickness
2 µm    Mean (= average)
3 µm    Maximum value
Anatomy of the emanating elements in general
• intrahyphal hyphae presence
  absent
• septal pores configuration
  globular thickenings
• backwards-oriented ramifications presence
  present
• backwards-oriented clamps presence
  absent
Anatomy of cystidia


Anatomy of emanating hyphae


Anatomy of the septa of emanating hyphae
• clamps presence
  absent




Anatomy of rhizomorphs
• type
  undifferentiated; margins rather smooth; hyphae compactly arranged and of uniform diameter
(type B)
or    slightly differentiated; central hyphae somewhat enlarged
(type C)
• nodia presence
  absent
• internal nodia presence
  absent
• gelatinous matrix presence
  absent
• gelatinized hyphae presence
  absent
• cup-like structures on surface presence
  absent
• a "ball" of intertwined, ramified, thin hyphae 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
Anatomy of nuclei
• number {per cell}
2     Mean (= average)
• shape
  round
• diameter
0.8 µm    Minimum value
1.2 µm    Mean (= average)
1.6 µm    Maximum value
• length
0.8 µm    Minimum value
1.2 µm    Mean (= average)
1.6 µm    Maximum value
• distance {between each other}
0 µm    Lower value of unspecified range (could be µ-s.d., but not known)
4 µm    Upper value of unspecified range (could be µ+s.d., but not known)

Autofluorescence

• whole mycorrhizae UV 254 nm colour-presence
  absent
• whole mycorrhizae UV 366 nm colour-presence
  absent
• mantle in section UV-filter 340-380 nm presence
  present
• mantle in section blue-filter, 450-490 nm presence
  absent
• mantle in section green-filter, 530-560 nm presence
  absent

Chemical reactions

• reaction with acid fuchsin presence
  present
• reaction with anilin presence
  absent
• reaction with brillant-cresyl-blue presence
  present
• reaction with cotton-blue-lactic-acid presence
  absent
• reaction with ethanol 70% presence
  absent
• reaction with FeSO4 presence
  absent
• reaction with formol 40% presence
  absent
• reaction with guaiac presence
  present
• reaction with KOH 10% presence
  present
• reaction with lactic acid presence
  absent
• reaction with Melzer's reagent presence
  absent
• reaction with phenole presence
  present
• reaction with phenole-aniline presence
  absent
• reaction with ruthenium-red presence
  present
• reaction with sulpho-vanillin presence
  present

Ecology

• substrate
  in organic layer
• geographic occurrence continent
  Europe
• knowledge about association with foreign fruitbodies presence
  unknown

Tree

• plant family
  Fagaceae
• plant genus
  Quercus
• plant habitat kind
  forests, woods

Fungus

• family
  Russulaceae
• subgenus-section
  Lactarius sect. Lactarius
• fruitbodies growth habit
  epigeous
or    pileate-lamellate

Remarks

• public notes
  Mycorrhizal ends at most slightly bent, whitish beige to ochre, mostly with a tinge of flesh-colour, older parts dark brown with a tinge of flesh-colour; rhizomorphs often coloured like the mantle, on older mycorrhizae brownish orange; in cross-section Hartig net 2-2.5 cortical cell layers deep; autofluorescence of mantle with UV-filter showing an outer stripe of distinctly lighter colour than layers below; mantle in sulfo-vanillin with dark violet laticifers, mantle in KOH slightly orange, in guaiac slightly grey, in brillant-cresyl-blue margin of mantle piece slightly violet, in phenole laticifers slightly yellowish, in acid fuchsin mantle rosy to red, laticifers more distinctly coloured, in ruthenium-red margin of mantle piece slightly reddish.

– Item listing –