Suillus laricinus (Bk.) O. Kuntze + Larix

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– Enlarged view –

Literature

• references
  Samson J, Fortin JA (1988) Structural characterization of Fuscoboletinus and Suillus ectomycorrhizae synthesized on Larix laricina. Mycologia 80(3): 382-392.
Treu R (1990) Charakterisierung und Identifizierung von Ektomykorrhizen aus dem Nationalpark Berchtesgaden. Bibl Mycol 134: 1-196.
Treu R (1993) Suillus laricinus. In Agerer R (ed) Colour Atlas of Ectomycorrhizae, plate 81, 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)
14 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• ramification presence-type
  monopodial-pinnate
or    monopodial-pyramidal
• tips {per 10 mm} number
16     Lower value of unspecified range (could be µ-s.d., but not known)
32     Upper value of unspecified range (could be µ+s.d., but not known)
• 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
0.67 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.77 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
• exploration type
  long distance
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)
3.5 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• diameter
0.4 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.46 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• colour
  brown
or    red
or    white
• mantle {distinct} surface visibility
  present
• mantle laticifers visibility
  absent
• mantle dots presence-colour
  absent
• mantle carbonizing presence
  absent
• mantle surface {in general} habit
  not smooth
• mantle surface {in detail} kind
  densely cottony
• emanating hyphae presence
  present
• emanating hyphae abundance
  abundant
• emanating hyphae distribution
  not specifically distributed
Morphology of rhizomorphs
• diameter
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.113 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• cross-section shape
  round or roundish
• ramification kind-frequency
  infrequently, at restricted points
• connection to mantle kind
  distinct
• origin location
  proximal
• dimorphism presence
  absent
Morphology of sclerotia
• presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
• emanating elements presence-type
  rhizomorphs
or    cystidia
• emanating elements cystidia location
  on outer mantle layer
• blue granules presence
  absent
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
  occasional patches of roundish cells on the mantle (type F)
• hyphal system kind
  undifferentiated
• septa clamps presence
  absent
• cell diameter
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)
7 µm    Maximum value
• cell length
0 µm    Lower value of unspecified range (could be µ-s.d., but not known)
45 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell wall surface habit
  smooth
and    with few crystals
• drops of exuded pigment presence
  present
Anatomy of the middle mantle layer
• organisation
  plectenchymatous
Anatomy of the inner mantle layer
• organisation
  plectenchymatous
• septa clamps presence
  absent
Anatomy of the mantle in longitudinal section
• mantle thickness {apart from tip}
32 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)
• outer mantle layer organisation
  plectenchymatous
• middle mantle layer organisation
  plectenchymatous
• inner mantle layer organisation
  plectenchymatous

Anatomy of the tannin cells in longitudinal section
• presence
  present

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
83 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)
• anatomy mantle longitudinal section cortical (epidermal) cells radially diameter
8 µm    Lower value of unspecified range (could be µ-s.d., but not known)
50 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)
110.2 µm    Mean (= average)
• anatomy mantle longitudinal section cortical (epidermal) cells mean shape-ratio CCq (ECq)
4.8     Mean (= average)

Anatomy of the mantle in cross-section
• 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
• rows number
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)

Anatomy of the cortical cells in cross-section
• anatomy mantle cross-section cortical (epidermal) cells shape
  radially-oval to -elliptic
or    tangentially-oval to tangentially-elliptic
• anatomy mantle cross-section cortical (epidermal) cells tangentially length
10 µm    Lower value of unspecified range (could be µ-s.d., but not known)
42 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• anatomy mantle cross-section cortical (epidermal) cells radially diameter
13 µm    Lower value of unspecified range (could be µ-s.d., but not known)
54 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
22.3 µm    Mean (= average)
• anatomy mantle cross-section cortical (epidermal) cells mean shape-ratio CCq
0.8     Mean (= average)

Anatomy of the Hartig net in cross-section
• presence
  present
• kind
  protruding towards endodermis
• anatomy mantle cross-section hyphal cells around cortical (epidermal) cells shape
  cylindrical
• anatomy mantle cross-section hyphal cells around cortical (epidermal) cells thickness
1.5 µm    Minimum value
2 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)
4 µm    Maximum value
• anatomy mantle cross-section hyphal rows around cortical (epidermal) cells number
  one
or    two
Anatomy of the emanating elements in general
• backwards-oriented clamps presence
  absent
Anatomy of cystidia

Anatomy of cystidia (type 1)
• type
  globular (type G)
• septa presence
  absent
• septa kind
  absent, with basal clamp only
• cell wall colour
  brownish
• cell wall thickness
1 µm    Mean (= average)
• cell wall thickness {relative to mantle cells}
  thicker
• surface habit
  smooth

Anatomy of emanating hyphae
• shape
  not striking
• 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 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 emanating elements emanating hyphae cell wall surface habit
  with crystals
or    without lens-shaped appositions
or    without spindle-shaped appositions
• anatomy emanating elements emanating hyphae cell wall thickness
0.2 µm    Mean (= average)


Anatomy of rhizomorphs
• type
  highly differentiated; thick hyphae forming mostly a core, septa often partially or completely dissolved
(type F)
• 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
  present
• {of ectomycorrhiza former} abundance
  occasionally present
• shape
  globular
Anatomy of nuclei
• number {per cell}
2     Mean (= average)
• shape
  round
or    oval
• diameter
2 µm    Mean (= average)
• distance {between each other}
1 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)

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 anilin presence
  absent
• reaction with brillant-cresyl-blue presence
  absent
• 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
  absent
• reaction with KOH 10% presence
  present
• reaction with lactic acid presence
  present
• 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
or    North America
• knowledge about association with foreign fruitbodies presence
  known

Tree

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

Fungus

• family
  Boletaceae
• subfamily
  Boletaceae subf. Suilloideae
• fruitbodies growth habit
  epigeous
or    pileate-porioid

Remarks

• public notes
  Mycorrhizal systems mostly monopodial-pinnate, infrequently monopodial-pyramidal; mycorrhizal ends mostly straight, infrequently bent, dirty-white to brownish, partially with a reddish hue; outer mantle layers in plan view with vacuolarly reddish cells; autofluorescence of mantle in section with UV-filter bluish, with blue-filter yellowish; mantle in KOH with red pigment becoming deeper coloured and whole mycorrhizae reddish brown, in lactic acid pigment becomes brownish to colourless, in NH4OH whole mycorrhizae reddish brown.

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