Suillus laricinus (Bk.) O. Kuntze + Larix

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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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