Laccaria proxima (Boud.) Pat. + Pinus

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Literature

references
  Danielson RM, Visser S, Parkinson D (1984) Production of ectomycorrhizae on container-grown jack pine seedlings. Can J For Res 14(1): 33-36.
Ingleby K, Mason PA, Last FT, Fleming LV (1990) Identification of ectomycorrhizas. ITE Research Publication no. 5. HMSO, London.

Morphology

Morphology of the mycorrhizal system
length
0 mm    Lower value of unspecified range (could be µ-s.d., but not known)
8 mm    Upper value of unspecified range (could be µ+s.d., but not known)
ramification presence-type
  dichotomous
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 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.6 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
  absent
exploration type
  medium distance smooth
Morphology of the unramified ends
shape
  bent
or    sinuous
shape {of distal end}
  not inflated, cylindric
colour
  brown
or    white
older parts colour
  brown
or    orange
or    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
  shiny
mantle surface {in detail} kind
  loosely cottony
emanating hyphae presence
  present
emanating hyphae abundance
  infrequent
or    abundant
Morphology of sclerotia
presence
  absent

Anatomy

Anatomical features of the entire mycorrhiza
Anatomy of laticifers
presence
  absent
Anatomical features of the mantle
Anatomy of the outer mantle layer apart from the ectormycorrhizal tip
organisation
  plectenchymatous
mantle type
  hyphae rather irregularly arranged and no special pattern discernible (type B)
hyphal system kind
  undifferentiated
cell shape
  cylindric, not constricted at septa
cell diameter
2.5 µm    Minimum value
3.5 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 surface habit
  smooth
Anatomy of the middle mantle layer
hyphae arrangement
  plectenchymatous, without pattern
Anatomy of the inner mantle layer
organisation
  plectenchymatous
hyphae arrangement
  without pattern
septa clamps presence
  absent
cell diameter
0 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)
cell length
0 µm    Lower value of unspecified range (could be µ-s.d., but not known)
20 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}
15 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)



Anatomy of the mantle in cross-section



Anatomy of the emanating elements in general
Anatomy of cystidia


Anatomy of emanating hyphae
shape
  tortuous

Anatomy of the ramification of emanating hyphae
presence
  present
kind
  approximately 90°
distance {from septum}
  in considerable distance from the septum
side-branches at septum number
  one side-branch at septum

Anatomy of the septa of emanating hyphae
clamps presence
  present
clamps hole presence
  absent

Anatomy of secondary septa of emanating hyphae
presence
  present
abundance
  infrequent
distribution
  not specified

Anatomy of the cells of emanating hyphae
anatomy emanating elements emanating hyphae cell shape
  with ellbow-like protrusions
anatomy emanating elements emanating hyphae cell shape {at distal end}
  simple
anatomy emanating elements emanating hyphae 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)
anatomy emanating elements emanating hyphae cell wall surface habit
  smooth


Anatomy of rhizomorphs
type
  lacking, only emanating hyphae present
(type G)

Anatomy of hyphae in rhizomorphs

Chemical reactions

reaction with cotton-blue-lactic-acid presence
  present

Ecology

geographic occurrence continent
  North America

Tree

plant family
  Pinaceae
plant genus
  Pinus
plant subgenus-section
  two-needle-pines
plant habitat kind
  nursery

Fungus

family
  Tricholomataceae
fruitbodies growth habit
  epigeous
or    pileate-lamellate

Remarks

public notes
  Mycorrhizae usually white to buff when young, darkening with age to various shades of orange or grey-brown, all mycorrhizae retain an opaque milk-white lustre; loose, straggly, hyphae can frequently be seen close to mantle surface; in cotton-blue hyphae in young mantle stain strongly blue.

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