Russula silvicola Shaffer + Abies

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Literature

references
  Kernaghan G, Currah RS, Bayer RJ (1997) Russulaceous ectomycorrhizae of Abies lasiocarpa and Picea engelmannii. Can J Bot 75: 1843-1850.

Morphology

Morphology of the mycorrhizal system
ramification presence-type
  monopodial-pinnate
rhizomorphs presence
  absent
Morphology of the unramified ends
colour
  brown
mantle transparency
  semi-transparent, opaque
mantle surface {in general} habit
  smooth
emanating hyphae 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
  pseudoparenchymatous
organisation {if pseudoparenchymatous} cell shape
  angular
mantle type
  angular cells (type L)
cell diameter
4.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
7.5 µm    Upper value of unspecified range (could be µ+s.d., but not known)
cell length
7 µm    Lower value of unspecified range (could be µ-s.d., but not known)
11 µm    Upper value of unspecified range (could be µ+s.d., but not known)
Anatomy of the middle mantle layer
organisation
  pseudoparenchymatous
cell diameter
5.5 µm    Lower value of unspecified range (could be µ-s.d., but not known)
11 µm    Upper value of unspecified range (could be µ+s.d., but not known)
cell length
9 µm    Lower value of unspecified range (could be µ-s.d., but not known)
22 µm    Upper value of unspecified range (could be µ+s.d., but not known)
Anatomy of the inner mantle layer
organisation
  plectenchymatous
cell 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 mantle in longitudinal section



Anatomy of the mantle in cross-section



Anatomy of the emanating elements in general
Anatomy of cystidia


Anatomy of emanating hyphae


Anatomy of the septa of emanating hyphae
clamps presence
  absent




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

Anatomy of hyphae in rhizomorphs

Chemical reactions

reaction with sulpho-vanillin presence
  present

Ecology

geographic occurrence continent
  North America

Tree

plant family
  Pinaceae
plant genus
  Abies
plant habitat kind
  forests, woods

Fungus

family
  Russulaceae
fruitbodies growth habit
  epigeous
or    pileate-lamellate

Remarks

public notes
  Mycorrhizal ends with hyaline mantle (assuming colour of underlying root tissue); outer mantle layers in plan view with subangular to polygonal cells, some sides rounded, often forming rosettes of 4-5 cells; plan view of middle mantle layers with noninterlocking epidermoid cells; inner mantle layers in plan view with obtusely branched hyphae; mantle in sulfo-vanillin with strongly positively reacting isolated cells.

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