Lactarius chrysorrheus (Fr.) Fr. + Quercus

– Item listing –

– 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.

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