Russula laricina Vel. + Larix

– Item listing –

– Enlarged view –

Literature

• references
  Treu R (1990) Charakterisierung und Identifizierung von Ektomykorrhizen aus dem Nationalpark Berchtesgaden. Bibl Mycol 134: 1-196.
Treu R (1990) Russula laricina. In Agerer R (ed) Colour Atlas of Ectomycorrhizae, plate 44, Einhorn-Verlag, Schwäbisch Gmünd.

Morphology

Morphology of the mycorrhizal system
• length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
15 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• ramification presence-type
  monopodial-pinnate
• ramification orders
0     Lower value of unspecified range (could be µ-s.d., but not known)
1     Upper value of unspecified range (could be µ+s.d., but not known)
• main axis diameter
0.83 mm    Lower value of unspecified range (could be µ-s.d., but not known)
1 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
  absent
Morphology of the unramified ends
• shape
  straight
or    sinuous
• shape {of distal end}
  inflated, club-shaped
• length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
5.3 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• diameter
0.47 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.8 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• colour
  brown
or    orange
• very tip colour
  brown
or    orange
• older parts colour
  brown
or    grey
• 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
  smooth
• emanating hyphae presence
  present
• emanating hyphae abundance
  infrequent
Morphology of sclerotia
• presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
• blue granules presence
  absent
Anatomy of laticifers
• presence
  absent
• anatomy entire mycorrhiza laticiferous solitary (gloeoplerous) cells presence
  present
Anatomical features of the mantle
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
• organisation
  plectenchymatous
and    pseudoparenchymatous
• organisation {if pseudoparenchymatous} cell shape
  epidermoid, puzzle-like, jig-saw-shaped
• mantle type
  some cells containing droplets, staining in sulpho-vanillin; shape variable (type N)
and    epidermoid cells bearing a hyphal net (type Q)
• hyphal net cells shape
  with roundish lobes
• hyphal net cells diameter
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
6 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• hyphal net cell walls habit
  faint, delicate, inconspicuous, rather thin
• septa clamps presence
  absent
• cell contents presence-kind
  droplets, that stain in sulpho-vanillin
• cell diameter
6 µm    Lower value of unspecified range (could be µ-s.d., but not known)
17 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell length
10 µm    Lower value of unspecified range (could be µ-s.d., but not known)
25 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell density
5     Lower value of unspecified range (could be µ-s.d., but not known)
7     Upper value of unspecified range (could be µ+s.d., but not known)
• cell wall thickness
0.2 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
• drops of exuded pigment presence
  absent
Anatomy of the middle mantle layer
• organisation
  pseudoparenchymatous
• cell diameter
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
15 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell length
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
15 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell density
5     Lower value of unspecified range (could be µ-s.d., but not known)
7     Upper value of unspecified range (could be µ+s.d., but not known)
• cell wall thickness
0.2 µm    Mean (= average)
• cell wall surface habit
  smooth
Anatomy of the inner mantle layer
• organisation
  plectenchymatous
• hyphae arrangement
  without pattern
• septa clamps presence
  absent
• cell diameter
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
3.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
6 µm    Maximum value
Anatomy of the outer mantle layer of the ectormycorrhizal tip
• anatomy mantle outer mantle layer {of ectomycorrhizal tip} organisation
  like other parts of mantle
Anatomy of the mantle in longitudinal section
• mantle thickness {apart from tip}
30 µm    Lower value of unspecified range (could be µ-s.d., but not known)
40 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
6 µm    Lower value of unspecified range (could be µ-s.d., but not known)
15 µm    Upper value of unspecified range (could be µ+s.d., but not known)
20 µm    Maximum value
• outer mantle layer hyphae radially diameter
3 µm    Lower value of unspecified range (could be µ-s.d., but not known)
7 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• inner mantle layer organisation
  plectenchymatous
• inner mantle layer hyphae tangentially length
6 µm    Lower value of unspecified range (could be µ-s.d., but not known)
15 µm    Upper value of unspecified range (could be µ+s.d., but not known)
20 µm    Maximum value
• inner mantle layer hyphae radially diameter
3 µm    Lower value of unspecified range (could be µ-s.d., but not known)
7 µm    Upper value of unspecified range (could be µ+s.d., but not known)

Anatomy of the tannin cells in longitudinal section
• presence
  present
• shape
  tangentially-oval, -elliptic or -cylindrical, and oriented in parallel to root axis
• tangentially length
85 µm    Lower value of unspecified range (could be µ-s.d., but not known)
150 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• radially diameter
13 µm    Lower value of unspecified range (could be µ-s.d., but not known)
28 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• mean tangenial length TCt
110.7 µm    Mean (= average)
• mean shape-ratio TCq
6.4     Mean (= average)

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 mantle longitudinal section cortical (epidermal) cells tangentially length
50 µm    Lower value of unspecified range (could be µ-s.d., but not known)
113 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy mantle longitudinal section cortical (epidermal) cells radially diameter
10 µm    Lower value of unspecified range (could be µ-s.d., but not known)
35 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy mantle longitudinal section cortical (epidermal) cells mean tangential length CCt (ECt)
81.8 µm    Mean (= average)
• anatomy mantle longitudinal section cortical (epidermal) cells mean shape-ratio CCq (ECq)
3.7     Mean (= average)

Anatomy of the mantle in cross-section
• mantle different layers presence
  discernible
• outer mantle layer organisation
  pseudoparenchymatous
• outer mantle layer hyphae tangentially length
4 µm    Lower value of unspecified range (could be µ-s.d., but not known)
15 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• outer mantle layer hyphae radially diameter
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
10 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• inner mantle layer organisation
  plectenchymatous
• inner mantle layer hyphae tangentially length
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• inner mantle layer hyphae radially diameter
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
5 µm    Upper value of unspecified range (could be µ+s.d., but not known)

Anatomy of the tannin cells in cross-section
• presence
  present
• rows number
1     Lower value of unspecified range (could be µ-s.d., but not known)
2     Upper value of unspecified range (could be µ+s.d., but not known)
• shape
  tangentially-oval to tangentially-elliptic
• tangentially length
10 µm    Lower value of unspecified range (could be µ-s.d., but not known)
40 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• radially diameter
8 µm    Lower value of unspecified range (could be µ-s.d., but not known)
33 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• mean tangential length TCt
24.5 µm    Mean (= average)
• mean shape-ratio TCq
1.4     Mean (= average)

Anatomy of the cortical cells in cross-section
• anatomy mantle cross-section cortical (epidermal) cells tangentially length
13 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)
• anatomy mantle cross-section cortical (epidermal) cells radially diameter
23 µm    Lower value of unspecified range (could be µ-s.d., but not known)
38 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy mantle cross-section cortical (epidermal) cells mean tangential length CCt
18.4 µm    Mean (= average)
• anatomy mantle cross-section cortical (epidermal) cells mean shape-ratio CCq
0.7     Mean (= average)

Anatomy of the Hartig net in cross-section
• anatomy mantle cross-section hyphal cells around tannin cells shape
  roundish
• anatomy mantle cross-section hyphal cells around tannin cells thickness
2 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)
• anatomy mantle cross-section hyphal rows around tannin cells number
  one
• anatomy mantle cross-section hyphal cells around cortical (epidermal) cells shape
  cylindrical
• anatomy mantle cross-section hyphal cells around cortical (epidermal) cells thickness
2 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)
• anatomy mantle cross-section hyphal rows around cortical (epidermal) cells number
  one
Anatomy of the emanating elements in general
Anatomy of cystidia


Anatomy of emanating hyphae
• shape
  not striking
• drops of exuded pigment presence
  absent


Anatomy of the septa of emanating hyphae
• clamps presence
  absent


Anatomy of the cells of emanating hyphae
• anatomy emanating elements emanating hyphae cell diameter
1 µm    Lower value of unspecified range (could be µ-s.d., but not known)
3 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy emanating elements emanating hyphae cell length
26 µm    Lower value of unspecified range (could be µ-s.d., but not known)
39 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy emanating elements emanating hyphae cell wall surface habit
  smooth
or    without lens-shaped appositions
or    without spindle-shaped appositions
• anatomy emanating elements emanating hyphae cell wall thickness
0.2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
0.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)


Anatomy of rhizomorphs
• type
  lacking, only emanating hyphae present
(type G)

Anatomy of hyphae in rhizomorphs
Anatomy of chlamydospores
• presence
  absent
Anatomy of haustoria
• {of ectomycorrhiza former} presence
  absent
• {of foreign origin} presence
  absent
Anatomy of nuclei
• number {per cell}
1     Lower value of unspecified range (could be µ-s.d., but not known)
2     Upper value of unspecified range (could be µ+s.d., but not known)
• diameter
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
3 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• length
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
3 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
  present
• mantle in section green-filter, 530-560 nm presence
  absent

Chemical reactions

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

Ecology

• geographic occurrence continent
  Europe
• knowledge about association with foreign fruitbodies presence
  unknown

Tree

• plant family
  Pinaceae
• plant genus
  Larix
• plant habitat kind
  forests, woods

Fungus

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

Remarks

• public notes
  Mycorrhizal ends infrequently slightly sinuous, very tip orange-brown, older parts greyish brown with rose tint; autofluorescence of mantle in section with UV-filter bluish, with blue-filter yellowish; mantle in sulfo-vanillin with some blue-black mantle cells.

– Item listing –