Leccinum scabrum (Bull. : Fr.) S. F. Gray + Betula

– Item listing –

– Enlarged view –

Literature

references
  Fox FM (1987) Ultrastructure of mycelial strands of Leccinum scabrum, ectomycorrhizal on birch (Betula spp.). Trans Br Mycol Soc 89(4): 551-560.
Müller W, Agerer R (1990) Studien an Ektomykorrhizen XXIX. Drei Mykorrhizen aus der Leccinum-scabrum-Gruppe. Nova Hedwigia 51: 381-410.
Müller W, Agerer R (1991) Leccinum scabrum. In Agerer R (ed) Colour Atlas of Ectomycorrhizae, plate 61, 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)
20 mm    Upper value of unspecified range (could be µ+s.d., but not known)
ramification presence-type
  monopodial-pinnate
or    monopodial-pyramidal
or    coralloid
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)
2     Maximum value
abundance
  abundant, dense
main axis diameter
0.3 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.4 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
exploration type
  long distance
Morphology of the unramified ends
shape
  bent
or    sinuous
or    tortuous
shape {of distal end}
  not inflated, cylindric
length
0.3 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.35 mm    Upper value of unspecified range (could be µ+s.d., but not known)
colour
  brown
or    ochre, yellowish brown
or    white
very tip colour
  white
older parts colour
  dark brown
or    brown
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
  silvery
or    smooth
emanating hyphae presence
  present
emanating hyphae abundance
  infrequent
Morphology of rhizomorphs
diameter
0.1 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.45 mm    Upper value of unspecified range (could be µ+s.d., but not known)
cross-section shape
  round or roundish
colour
  concolourous to mantle
or    yellowish
ramification kind-frequency
  frequently, at restricted points
connection to mantle kind
  distinct
origin location
  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
  absent
Anatomical features of the mantle
matrix presence
  absent
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
organisation
  plectenchymatous
mantle type
  ring-like arrangement of hyphal bundles (type A)
and    occasional patches of roundish cells on the mantle (type F)
hyphae hyphal junctions angle {between}
  ca. 45° and less
and    ca. 90°
septa thickness {relative to cell walls}
  as thick as walls
septa clamps presence
  absent
cell shape
  cylindric, not constricted at septa
cell pigment location-colour
  absent
cell diameter
2.5 µm    Minimum value
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)
cell wall thickness
0.2 µm    Mean (= average)
cell wall surface habit
  rough
drops of exuded pigment presence
  absent
Anatomy of the middle mantle layer
organisation
  plectenchymatous
hyphae arrangement
  plectenchymatous, ring-like
cell pigment location-colour
  colourless
cell diameter
4 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)
6 µm    Maximum value
cell wall thickness
0.2 µm    Mean (= average)
cell wall surface habit
  smooth
Anatomy of the inner mantle layer
organisation
  plectenchymatous with pseudoparenchymatous nests of cells
hyphae arrangement
  ring-like
septa clamps presence
  absent
cell pigment location-colour
  absent
cell diameter
5 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)
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
4 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)
10 µm    Maximum value

Anatomy of the tannin cells in longitudinal section
presence
  absent

Anatomy of the cortical cells in longitudinal section
anatomy mantle longitudinal section cortical (epidermal) cells tangentially length
15 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 radially diameter
40 µm    Lower value of unspecified range (could be µ-s.d., but not known)
60 µm    Upper value of unspecified range (could be µ+s.d., but not known)

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
4 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)
10 µm    Maximum value

Anatomy of the tannin cells in cross-section
presence
  absent
shape
  radially-oval to -elliptic

Anatomy of the cortical cells in cross-section
anatomy mantle cross-section cortical (epidermal) cells tangentially 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)
anatomy mantle cross-section cortical (epidermal) cells radially diameter
40 µm    Lower value of unspecified range (could be µ-s.d., but not known)
55 µm    Upper value of unspecified range (could be µ+s.d., but not known)

Anatomy of the Hartig net in cross-section
anatomy mantle cross-section hyphal cells around cortical (epidermal) cells shape
  beaded
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)
5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
17 µm    Maximum value
structure {in plan view}
  of palmetti type
Anatomy of the emanating elements in general
Anatomy of cystidia


Anatomy of emanating hyphae
cell pigment location-colour
  absent


Anatomy of the septa of emanating hyphae
clamps presence
  absent


Anatomy of the cells of emanating hyphae
anatomy emanating elements emanating hyphae cell shape
  even
anatomy emanating elements emanating hyphae cell diameter
2.5 µm    Minimum value
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 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)
nodia presence
  present
internal nodia 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
  as normal hyphae
Anatomy of nuclei
number {per cell}
2     Mean (= average)
shape
  round
diameter
1.5 µm    Mean (= average)
length
1.5 µm    Mean (= average)
distance {between each other}
0 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)
Ultrastructure
hyphae warts shape
  spherical, no internal structure discernible

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
  absent
mantle in section blue-filter, 450-490 nm presence
  absent

Chemical reactions

reaction with acid fuchsin presence
  present
reaction with anilin presence
  absent
reaction with brillant-cresyl-blue presence
  present
reaction with cotton-blue-lactic-acid presence
  absent
reaction with FeSO4 presence
  present
reaction with formol 40% presence
  absent
reaction with guaiac presence
  absent
reaction with KOH 10% presence
  present
reaction with lactic acid presence
  absent
reaction with Melzer's reagent presence
  absent
amyloidity haustoria 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
  Betulaceae
plant genus
  Betula
plant habitat kind
  forests, woods

Fungus

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

Remarks

public notes
  The single hyphae and the component hyphae on the surface of the rhizomorphs bear clamp connections (Fox 987); mantle in sulfo-vanillin slightly reddish, in KOH sometimes distinctly brown, in FeSO4 slightly darker, in brillant-cresyl-blue distinctly blue, in acid fuchsin red.

– Item listing –