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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