Alnicola cholea Kühner + Polygonum

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Literature

references
  Moreau P-A, Mleczko P, Ronikier M, Ronikier A (2006) Rediscovery of Alnicola cholea (Cortinariaceae): taxonomic revision and description of its mycorrhiza with Polygonum viviparum (Polygonaceae). Mycologia 98(3): 468-478.

Morphology

Morphology of the mycorrhizal system
ramification presence-type
  absent
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 [mostly]
or    bent [rarely]
or    sinuous [rarely]
or    constricted between older and younger parts
or    beaded [sometimes]
shape {of distal end}
  not inflated, cylindric
or    tapering
length
0.5 mm    Lower value of unspecified range (could be µ-s.d., but not known)
1.5 mm    Upper value of unspecified range (could be µ+s.d., but not known)
diameter
0.15 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.25 mm    Upper value of unspecified range (could be µ+s.d., but not known)
colour
  white
or    whitish
older parts colour
  reddish [with reddish tint]
mantle cortical cells visibility
  not visible
mantle {distinct} surface visibility
  present
mantle laticifers visibility
  absent
mantle secreted latex {after scratching mantle} presence
  absent
mantle dots presence-colour
  absent
mantle carbonizing presence
  absent
mantle surface {in general} habit
  not smooth
mantle surface {in detail} kind
  densely woolly
or    loosely woolly
or    densely stringy
or    loosely stringy
emanating hyphae presence
  present
emanating hyphae abundance
  abundant
Morphology of sclerotia
presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
emanating elements presence-type
  rhizomorphs
or    emanating hyphae
crystals presence
  absent
blue granules presence
  absent
Anatomy of laticifers
presence
  absent
anatomy entire mycorrhiza laticiferous solitary (gloeoplerous) cells presence
  absent
Anatomical features of the mantle
matrix presence
  absent
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
organisation
  plectenchymatous [plectenchymatous to pseudoparenchymatous]
mantle type
  ring-like arrangement of hyphal bundles (type A)
and    hyphae rather irregularly arranged and no special pattern discernible (type B)
hyphal system kind
  undifferentiated
hyphae hyphal junctions angle {between}
  ca. 45° and less
and    ca. 90°
septa clamps presence
  present
cell shape
  cylindric, constricted at septa
cell pigment location-colour
  absent
and    membranaceously yellowish
cell diameter
2.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
7 µm    Upper value of unspecified range (could be µ+s.d., but not known)
cell length
14 µm    Lower value of unspecified range (could be µ-s.d., but not known)
130 µm    Upper value of unspecified range (could be µ+s.d., but not known)
cell wall thickness
0.1 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
roundish plasmatically yellow cells presence
  absent
Anatomy of the middle mantle layer
presence
  present
organisation
  plectenchymatous [often transitional to a pseudoparenchyma]
cell diameter
2.5 µm    Minimum value
4.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
26 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)
65 µm    Upper value of unspecified range (could be µ+s.d., but not known)
95 µm    Maximum value
Anatomy of the inner mantle layer
organisation
  plectenchymatous
cell diameter
1.5 µm    Minimum value
2.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
9 µm    Upper value of unspecified range (could be µ+s.d., but not known)
cell length
6.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
65 µm    Upper value of unspecified range (could be µ+s.d., but not known)
Anatomy of the mantle in longitudinal section
mantle different layers presence
  not discernable
unlayered mantle organization
  plectenchymatous
unlayered mantle hyphae tangentially length
1.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
14 µm    Upper value of unspecified range (could be µ+s.d., but not known)
unlayered mantle hyphae radially diameter
1.5 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)

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 shape
  tangentially-oval to -elliptic or -cylindrical, and oriented obliquely
anatomy mantle longitudinal section cortical (epidermal) cells tangentially length
20 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 radially diameter
54 µm    Lower value of unspecified range (could be µ-s.d., but not known)
71 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy mantle longitudinal section cortical (epidermal) cells mean shape-ratio CCq (ECq)
0.42     Mean (= average)

Anatomy of the Hartig net in longitudinal section
presence
  present
kind
  paraepidermal
anatomy mantle longitudinal section hyphal rows around cortical (epidermal) cells number
  one
or    two
structure {in plan view}
  of palmetti type
lobes width
1 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)
Anatomy of the mantle in cross-section



Anatomy of the emanating elements in general
backwards-oriented ramifications presence
  present
backwards-oriented clamps presence
  present
anastomoses type
  open, with a short bridge or bridge almost lacking
Anatomy of cystidia


Anatomy of emanating hyphae
cell pigment location-colour
  absent
or    membranaceously yellowish
drops of exuded pigment presence
  absent

Anatomy of the ramification of emanating hyphae
presence
  present

Anatomy of the septa of emanating hyphae
clamps presence
  present
clamps surface kind
  not smooth
clamps outline {in lateral view}
  as a semicircle
clamps width {relative to hypha in lateral view}
  thinner than [slightly]
or    as broad as

Anatomy of secondary septa of emanating hyphae
presence
  absent

Anatomy of the cells of emanating hyphae
anatomy emanating elements emanating hyphae cell shape
  slightly constricted
anatomy emanating elements emanating hyphae cell diameter
2.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
7 µm    Upper value of unspecified range (could be µ+s.d., but not known)
anatomy emanating elements emanating hyphae cell length
20 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 emanating elements emanating hyphae cell wall surface habit
  smooth
anatomy emanating elements emanating hyphae cell wall thickness
0.1 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)


Anatomy of the warts occouring on emanating hyphae
presence
  absent
Anatomy of rhizomorphs
type
  undifferentiated; hyphae rather loosely woven and of uniform diameter
(type A)

Anatomy of hyphae in rhizomorphs
anatomy emanating elements rhizomorphs clamps presence
  present, not specified
roundish plasmatically yellow cells presence
  absent
Anatomy of vessel-like or thickened hyphae in rhizomorphs
anatomy emanating elements rhizomorphs clamps presence
  present, not specified
anatomy emanating elements rhizomorphs hyphae roundish plasmatically yellow cells presence
  absent
Anatomy of central non-vessel-like hyphae in rhizomorphs
anatomy emanating elements rhizomorphs clamps presence
  present, not specified
anatomy emanating elements rhizomorphs hyphae roundish plasmatically yellow cells presence
  absent
Anatomy of peripheral hyphae in rhizomorphs
anatomy emanating elements rhizomorphs clamps presence
  present, not specified
anatomy emanating elements rhizomorphs hyphae roundish plasmatically yellow cells presence
  absent
Anatomy of solitary thick-walled hyphae in rhizomorphs
anatomy emanating elements rhizomorphs clamps presence
  present, not specified
anatomy emanating elements rhizomorphs hyphae roundish plasmatically yellow cells presence
  absent
Anatomy of chlamydospores
presence
  absent

Ecology

geographic occurrence continent
  Europe

Tree

plant family
  Polygonaceae
plant genus
  Polygonum
plant habitat kind
  dwarf shrub vegetation

Fungus

family
  Cortinariaceae
fruitbodies growth habit
  epigeous
or    pileate-lamellate

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