Lactarius porninsis Roll. + 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) Lactarius porninsis. In Agerer R (ed) Colour Atlas of Ectomycorrhizae, plate 42, 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
• tips {per 10 mm} number
5     Minimum value
9     Lower value of unspecified range (could be µ-s.d., but not known)
12     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
0.47 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.73 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
  infrequent
Morphology of the unramified ends
• shape
  straight
or    constricted between older and younger parts
• length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
3.3 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• diameter
0.43 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.53 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• colour
  brown
or    orange
• older parts colour
  brown
• mantle {distinct} surface visibility
  present
• mantle dots presence-colour
  absent
• mantle carbonizing presence
  absent
• mantle surface {in general} habit
  smooth
• emanating hyphae presence
  absent
Morphology of rhizomorphs
• diameter
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.1 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• cross-section shape
  round or roundish
• colour
  yellow
• ramification kind-frequency
  infrequently, at restricted points
• origin location
  not specific
or    proximal
• 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
  present
• location
  middle mantle layer
• cell diameter
5 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)
15 µm    Maximum value
Anatomical features of the mantle
• matrix presence
  present
• matrix location
  outer mantle layer {apart from tip}
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
• organisation
  plectenchymatous
• mantle type
  gelatinous matrix between the hyphae (type C)
• matrix kind
  gelatinous
• hyphal system kind
  undifferentiated
• septa clamps presence
  absent
• cell diameter
2.5 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)
• cell length
8 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)
• 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)
• cell wall surface habit
  smooth
• drops of exuded pigment presence
  absent
Anatomy of the middle mantle layer
• organisation
  plectenchymatous
Anatomy of the inner mantle layer
• organisation
  plectenchymatous
• hyphae arrangement
  without pattern
• septa clamps presence
  absent
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}
25 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)
• mantle different layers presence
  not discernable
• outer mantle layer organisation
  plectenchymatous
• middle mantle layer organisation
  plectenchymatous
• inner mantle layer organisation
  plectenchymatous
• unlayered mantle hyphae radially 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
• laticifers diameter
4 µm    Lower value of unspecified range (could be µ-s.d., but not known)
11 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
45 µm    Lower value of unspecified range (could be µ-s.d., but not known)
125 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)
23 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• mean tangenial length TCt
5.9 µm    Mean (= average)
• mean shape-ratio TCq
6.2     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
60 µm    Lower value of unspecified range (could be µ-s.d., but not known)
168 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)
25 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)
98.1 µm    Mean (= average)
• anatomy mantle longitudinal section cortical (epidermal) cells mean shape-ratio CCq (ECq)
6.1     Mean (= average)

Anatomy of the mantle in cross-section
• mantle different layers presence
  not discernible
• outer mantle layer organisation
  plectenchymatous
• middle mantle layer organisation
  plectenchymatous
• inner mantle layer organisation
  plectenchymatous
• unlayered mantle hyphae radially 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
• laticifers diameter
4 µm    Lower value of unspecified range (could be µ-s.d., but not known)
11 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
2     Mean (= average)
3     Maximum value
• shape
  radially-oval to -elliptic
or    tangentially-oval to tangentially-elliptic
• tangentially length
11 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
7 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)
• mean tangential length TCt
26.8 µm    Mean (= average)
• mean shape-ratio TCq
1.8     Mean (= average)

Anatomy of the cortical cells in cross-section
• anatomy mantle cross-section cortical (epidermal) cells shape
  radially-oval to -elliptic
• anatomy mantle cross-section cortical (epidermal) cells tangentially length
12 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 radially diameter
20 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)
• anatomy mantle cross-section cortical (epidermal) cells mean tangential length CCt
22.8 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
• presence
  present
• kind
  in tow rows, not reaching endodermis
• anatomy mantle cross-section hyphal cells around tannin cells shape
  roundish
or    cylindrical
• anatomy mantle cross-section hyphal cells around tannin cells thickness
3 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 mantle cross-section hyphal rows around tannin cells number
  one
• anatomy mantle cross-section hyphal cells around cortical (epidermal) cells thickness
2.5 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)
6 µm    Maximum value
• anatomy mantle cross-section hyphal rows around cortical (epidermal) cells number
  one
or    two
Anatomy of the emanating elements in general
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)
• 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)
• diameter
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)

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
  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
  present

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
  Lactarius sect. Lactarius
• fruitbodies growth habit
  epigeous
or    pileate-lamellate

Remarks

• public notes
  Mycorrhizal ends sometimes constricted between younger and older parts, light orange-brown to rosy-brown; autofluorescence of mantle in section with UV-filter bluish, with blue-filter yellowish; mantle in sulfo-vanillin with dark blue laticifers.

– Item listing –