Russula acrifolia Romagn. + Picea

– Item listing –

– Enlarged view –

Literature

references
  Agerer R (1996) Russula acrifolia. In Agerer R (ed) Colour Atlas of Ectomycorrhizae, plate 105, Einhorn-Verlag, Schwäbisch Gmünd.
Agerer R, Franz F, Acker G (1994) The ectomycorrhizae of Russula acrifolia: an anatomical and ultrastructural treatise. Mycol Helvetica 6: 23-48.

Morphology

Morphology of the mycorrhizal system
length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
5 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
4     Lower value of unspecified range (could be µ-s.d., but not known)
6     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)
abundance
  solitary or in small numbers
main axis diameter
0.45 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.51 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
  contact
Morphology of the unramified ends
shape
  straight
or    tortuous
shape {of distal end}
  not inflated, cylindric
length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
3.9 mm    Upper value of unspecified range (could be µ+s.d., but not known)
5.2 mm    Maximum value
diameter
0.33 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)
colour
  white
very tip colour
  whitish
older parts colour
  grey
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
or    covered with soil particles
emanating hyphae presence
  present
emanating hyphae abundance
  infrequent
Morphology of rhizomorphs
diameter
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.15 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    ochre, yellowish brown
or    whitish
connection to mantle kind
  distinct
origin location
  not specific
or    proximal
margin habit
  hairy
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
or    on rhizomorphs
blue granules presence
  absent
Anatomy of laticifers
presence
  absent
Anatomical features of the mantle
matrix presence
  present
matrix location
  outer mantle layer {apart from tip}
or    outer mantle layer {of ectomycorrhizal tip}
or    middle mantle layer
or    inner mantle layer
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
organisation
  plectenchymatous
mantle type
  gelatinous matrix between the hyphae (type C)
and    hyphae arranged net-like, with prominent cystidia (type D)
matrix kind
  gelatinous
hyphal system kind
  undifferentiated
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
  membranaceously brownish
cell diameter
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
3.5 µm    Maximum value
cell wall thickness
0.2 µm    Mean (= average)
cell wall surface habit
  smooth
drops of exuded pigment presence
  absent
Anatomy of the middle mantle layer
organisation
  plectenchymatous
matrix kind
  gelatinous
hyphae arrangement
  plectenchymatous, without pattern
cell pigment location-colour
  colourless
or    membranaceously yellowish
or    membranaceously brownish
cell diameter
3 µm    Minimum value
4 µm    Lower value of unspecified range (could be µ-s.d., but not known)
6.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
9 µm    Maximum value
cell contents presence-kind
  absent
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
matrix kind
  not gelatinous
septa clamps presence
  absent
cell pigment location-colour
  absent
cell diameter
4 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)
cell contents presence-kind
  absent
Anatomy of the outer mantle layer of the ectormycorrhizal tip
anatomy mantle outer mantle layer {of ectomycorrhizal tip} organisation
  plectenchymatous
anatomy mantle outer mantle layer {of ectomycorrhizal tip} matrix kind
  gelatinous
anatomy mantle outer mantle layer {of ectomycorrhizal tip} hyphae 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)
Anatomy of the mantle in longitudinal section
mantle thickness {apart from tip}
30 µm    Minimum value
40 µm    Mean (= average)
50 µm    Maximum value
mantle different layers presence
  discernable
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
shape
  tangentially-oval, -elliptic or -cylindrical, and oriented in parallel to root axis
tangentially length
40 µm    Lower value of unspecified range (could be µ-s.d., but not known)
100 µm    Upper value of unspecified range (could be µ+s.d., but not known)
105 µm    Maximum value
radially diameter
3 µm    Minimum value
6 µm    Lower value of unspecified range (could be µ-s.d., but not known)
17 µm    Upper value of unspecified range (could be µ+s.d., but not known)
mean tangenial length TCt
73 µm    Mean (= average)
mean shape-ratio TCq
7.1     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 obliquely
or    tangentially-oval to -elliptic or -cylindrical, and oriented in parallel to root axis
anatomy mantle longitudinal section cortical (epidermal) cells tangentially length
17 µm    Minimum value
45 µm    Lower value of unspecified range (could be µ-s.d., but not known)
105 µm    Upper value of unspecified range (could be µ+s.d., but not known)
115 µm    Maximum value
anatomy mantle longitudinal section cortical (epidermal) cells radially diameter
13 µm    Minimum value
16 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)
anatomy mantle longitudinal section cortical (epidermal) cells mean tangential length CCt (ECt)
73 µm    Mean (= average)
anatomy mantle longitudinal section cortical (epidermal) cells mean shape-ratio CCq (ECq)
3.3     Mean (= average)

Anatomy of the Hartig net in longitudinal section
presence
  present
kind
  protruding towards endodermis
structure {in plan view}
  of palmetti type
lobes width
2 µm    Minimum value
3 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 of the mantle in cross-section
mantle different layers presence
  discernible
outer mantle layer organisation
  plectenchymatous
middle mantle layer organisation
  plectenchymatous
middle mantle layer hyphae tangentially length
5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
15 µm    Upper value of unspecified range (could be µ+s.d., but not known)
20 µm    Maximum value
middle mantle layer hyphae radially 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)
inner mantle layer organisation
  plectenchymatous
inner mantle layer hyphae tangentially length
3 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
inner mantle layer hyphae radially diameter
3 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)
5 µm    Maximum value

Anatomy of the tannin cells in cross-section
presence
  present
rows number
1     Lower value of unspecified range (could be µ-s.d., but not known)
2     Upper value of unspecified range (could be µ+s.d., but not known)
shape
  radially-oval to -elliptic
or    tangentially-oval to tangentially-elliptic
tangentially length
11 µm    Minimum value
23 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)
80 µm    Maximum value
radially diameter
7 µm    Minimum value
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)
33 µm    Maximum value
mean tangential length TCt
33.5 µm    Mean (= average)
mean shape-ratio TCq
2.1     Mean (= average)

Anatomy of the cortical cells in cross-section
anatomy mantle cross-section cortical (epidermal) cells tangentially length
15 µm    Minimum value
25 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)
60 µm    Maximum value
anatomy mantle cross-section cortical (epidermal) cells radially diameter
12 µm    Minimum value
22 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)
50 µm    Maximum value
anatomy mantle cross-section cortical (epidermal) cells mean tangential length CCt
37 µm    Mean (= average)
anatomy mantle cross-section cortical (epidermal) cells mean shape-ratio CCq
1.2     Mean (= average)

Anatomy of the Hartig net in cross-section
presence
  present
kind
  protruding towards endodermis
anatomy mantle cross-section hyphal cells around tannin cells shape
  roundish
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)
7 µm    Maximum value
anatomy mantle cross-section hyphal rows around tannin cells number
  one
or    two
anatomy mantle cross-section hyphal cells around cortical (epidermal) cells shape
  cylindrical
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)
3 µm    Upper value of unspecified range (could be µ+s.d., but not known)
3.5 µm    Maximum value
anatomy mantle cross-section hyphal rows around cortical (epidermal) cells number
  one
Anatomy of the emanating elements in general
intrahyphal hyphae presence
  present
septal pores configuration
  globular thickenings
anastomoses type
  open, with a short bridge or bridge almost lacking
anastomoses location
  not specified
Anatomy of cystidia

Anatomy of cystidia (type 1)
type
  flask-shaped with an apical knob (type D)
apical knobs number
1     Minimum value
2     Mean (= average)
3     Maximum value
apical knobs arrangement
  asymmetrically
or    serially in a bunch of two
apical knobs shape
  ovoid
apical knobs diameter
1 µm    Minimum value
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2 µm    Upper value of unspecified range (could be µ+s.d., but not known)
2.5 µm    Maximum value
apical knobs length
1.5 µm    Minimum value
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
3.5 µm    Maximum value
apical knobs wall thickness
0.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
1 µm    Upper value of unspecified range (could be µ+s.d., but not known)
apical knobs cell wall thickness {relative to cystidial body}
  thicker than those of cystidial body
septa presence
  absent
septa kind
  absent, with basal clamp only
diameter {proximal}
4 µm    Minimum value
4.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
5.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
6 µm    Maximum value
diameter {distal}
1.5 µm    Minimum value
2 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
3 µm    Maximum value
length
13 µm    Lower value of unspecified range (could be µ-s.d., but not known)
21 µm    Upper value of unspecified range (could be µ+s.d., but not known)
26 µm    Maximum value
cell wall colour
  absent
cell wall colour {relative to mantle cells}
  lacking or less intense
cell wall thickness
0 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 thickness {relative to mantle cells}
  thicker
cell wall evenness
  even in thickness
surface habit
  smooth
contents presence
  present
contents type
  brownish, with latex-like droplets

Anatomy of emanating hyphae
shape
  not striking
cell pigment location-colour
  absent
drops of exuded pigment presence
  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 shape {at distal end}
  tortuous, screw-like
anatomy emanating elements emanating hyphae cell diameter
3 µm    Lower value of unspecified range (could be µ-s.d., but not known)
3.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy emanating elements emanating hyphae cell wall surface habit
  without lens-shaped appositions
or    without spindle-shaped appositions
or    with soil particles
anatomy emanating elements emanating hyphae cell wall thickness
0.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
1 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy emanating elements emanating hyphae cell wall thickness at tip {relative to remaining cell wall}
  thinner
anatomy emanating elements emanating hyphae cell wall {apart from tip} evenness
  even in thickness


Anatomy of rhizomorphs
type
  differentiated; thick hyphae forming a core, septa complete or sometimes enlarged
(type E)
nodia presence
  absent
internal nodia presence
  absent
gelatinous matrix presence
  present
gelatinized hyphae presence
  absent
cup-like structures on surface presence
  absent
conical young side-branches presence
  absent
a "ball" of intertwined, ramified, thin hyphae presence
  absent

Anatomy of hyphae in rhizomorphs
contents presence-kind
  absent
ampullate, trumpet-like inflated presence
  absent
Anatomy of vessel-like or thickened hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae contents presence-kind
  absent
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 contents presence-kind
  absent
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of peripheral hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae contents presence-kind
  absent
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of solitary thick-walled hyphae in rhizomorphs
anatomy emanating elements rhizomorphs hyphae contents presence-kind
  absent
anatomy emanating elements rhizomorphs hyphae ampullate, trumpet-like inflated presence
  absent
Anatomy of chlamydospores
presence
  absent
Anatomy of haustoria
{of ectomycorrhiza former} presence
  absent
{of foreign origin} presence
  absent
Anatomy of nuclei
number {per cell}
2     Mean (= average)
shape
  round
or    oval
diameter
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
2 µm    Upper value of unspecified range (could be µ+s.d., but not known)
length
2 µm    Mean (= average)
Ultrastructure
septal pores type
  as dolipores with perforated parenthesome
mantle matrix presence-kind
  of outer layers dark, of inner layers transparent

Autofluorescence

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
  present

Chemical reactions

reaction with anilin presence
  present
reaction with cotton-blue-lactic-acid presence
  present [walls slightly blue]
reaction with FeSO4 presence
  present
reaction with formol 40% presence
  absent
reaction with guaiac presence
  present
reaction with KOH 10% presence
  present
reaction with lactic acid presence
  absent
reaction with Melzer's reagent presence
  absent
reaction with phenole 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
  Picea
plant habitat kind
  forests, woods

Fungus

family
  Russulaceae
subgenus-section
  Russula sect. Compactae
fruitbodies growth habit
  epigeous
or    pileate-lamellate

Remarks

public notes
  Mycorrhizal ends straight to slightly tortuous; autofluorescence of mantle in section with UV-filter greenish-blue and cystidia and inner mantle layers more intensely than middle parts, with blue-filter yellow, with green-filter red; mantle in sulfo-vanillin with distinctly grey walls and contents of some cystidia homogeneously grey, in KOH more intensely ochre, in guaiac blue, in FeSO4 slightly greenish, in cotton-blue walls slightly blue, in anilin weakly reddish to slightly ochre, in safranin red.

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