Lactarius porninsis Roll. + Larix

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– 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.

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