| • references | |
| Harrington TJ, Mitchell DT (2002) Characterization of Dryas octopetala ectomycorrhizas from limestone karst vegetation, western Ireland. Can J Bot 80: 970-982. | |
| • ramification presence-type | |
| absent [scarcely branched] | |
| or | irregularly pinnate, dichotomous-like |
| • rhizomorphs presence | |
| absent | |
| • shape | |
| straight | |
| or | tortuous |
| • shape {of distal end} | |
| not inflated, cylindric | |
| or | inflated, club-shaped |
| • diameter | |
| 0 mm | Lower value of unspecified range (could be µ-s.d., but not known) |
| 0.35 mm | Upper value of unspecified range (could be µ+s.d., but not known) |
| • colour | |
| yellow | |
| or | orange [yellowis white to light orange] |
| or | white |
| • mantle surface {in general} habit | |
| shiny | |
| or | smooth |
| • emanating hyphae presence | |
| present | |
| • emanating hyphae abundance | |
| infrequent | |
| • emanating elements presence-type | |
| emanating hyphae | |
| • organisation | |
| plectenchymatous | |
| • 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 | |
| forked | |
| • cell diameter | |
| 2.5 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 thickness | |
| 0.1 µm | Mean (= average) |
| 0.1 µm | Lower value of unspecified range (could be µ-s.d., but not known) |
| 0.1 µm | Upper value of unspecified range (could be µ+s.d., but not known) |
| • mantle thickness {apart from tip} | |
| 12 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) |
| • outer mantle layer organisation | |
| plectenchymatous | |
| • middle mantle layer organisation | |
| plectenchymatous | |
| • inner mantle layer organisation | |
| plectenchymatous | |
| • outer mantle layer organisation | |
| plectenchymatous | |
| • middle mantle layer organisation | |
| plectenchymatous | |
| • inner mantle layer organisation | |
| plectenchymatous | |
| • presence | |
| present | |
| • kind | |
| protruding towards endodermis | |
| • anatomy mantle cross-section hyphal rows around cortical (epidermal) cells number | |
| one | |
| • clamps presence | |
| present | |
| • anatomy emanating elements emanating hyphae cell diameter | |
| 3 µm | Lower value of unspecified range (could be µ-s.d., but not known) |
| 4.5 µm | Upper value of unspecified range (could be µ+s.d., but not known) |
| • type | |
| lacking, only emanating hyphae present (type G) |
|
| • substrate | |
| in organic layer | |
| • geographic occurrence continent | |
| Europe | |
| • plant family | |
| Rosaceae | |
| • plant habitat kind | |
| dwarf shrub vegetation | |
| • 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. | |