Dryadirhiza truncata + Dryas

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Literature

• references
  Harrington TJ, Mitchell DT (2002) Characterization of Dryas octopetala ectomycorrhizas from limestone karst vegetation, western Ireland. Can J Bot 80: 970-982.

Morphology

Morphology of the mycorrhizal system
• length
2 mm    Lower value of unspecified range (could be µ-s.d., but not known)
3 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• ramification presence-type
  irregularly pinnate, dichotomous-like [irregularly branched, short and stubby]
• rhizomorphs presence
  absent
Morphology of the unramified ends
• shape
  straight
• shape {of distal end}
  not inflated, cylindric
or    inflated, club-shaped
or    tapering
• length
1 mm    Lower value of unspecified range (could be µ-s.d., but not known)
3 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• diameter
0.2 mm    Lower value of unspecified range (could be µ-s.d., but not known)
0.5 mm    Upper value of unspecified range (could be µ+s.d., but not known)
• colour
  orange
• mantle surface {in general} habit
  smooth
• emanating hyphae presence
  present
• emanating hyphae abundance
  infrequent

Anatomy

Anatomical features of the entire mycorrhiza
• emanating elements presence-type
  emanating hyphae
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
9 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)
• cell length
9 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 inner mantle layer
• organisation
  pseudoparenchymatous
• cell shape
  roundish
• cell diameter
6 µm    Lower value of unspecified range (could be µ-s.d., but not known)
18 µm    Upper value of unspecified range (could be µ+s.d., but not known)
• cell length
6 µm    Lower value of unspecified range (could be µ-s.d., but not known)
18 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}
8 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)



Anatomy of the mantle in cross-section
• outer mantle layer organisation
  pseudoparenchymatous



Anatomy of the Hartig net in cross-section
• presence
  present
• kind
  protruding towards endodermis [occupying 3-4 rows]
• anatomy mantle cross-section hyphal rows around cortical (epidermal) cells number
  one
Anatomy of the emanating elements in general
Anatomy of cystidia


Anatomy of emanating hyphae

Anatomy of the ramification of emanating hyphae
• presence
  present
• kind
  variable

Anatomy of the septa of emanating hyphae
• clamps presence
  absent


Anatomy of the cells of emanating hyphae
• anatomy emanating elements emanating hyphae cell diameter
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 wall surface habit
  smooth


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

Anatomy of hyphae in rhizomorphs

Ecology

• substrate
  in organic layer
• geographic occurrence continent
  Europe

Tree

• plant family
  Rosaceae
• plant genus
  Dryas

Remarks

• public notes
  The characterization these entries are based on is rather incomplete, insofar important features have not been observed or their lack has not been mentioned. This ectomycorrhiza is included in DEEMY as a specific, new name has been applied. Due to the limited character information it will be difficult to differentiate this ectomycorrhiza from many other species included in DEEMY, and therefore, identification on a general scale will be hardly possible. Dryas-based attempts, however, may result in success.

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