Taxonomy
Collection 10810 (herbarium acc. no. C-F-20773) is Hebeloma marginatulum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 10810 was collected by J. Vesterholt (93-442) on 5th August 1993 in Nordur-Mulasysla: Holl in Hjaltastadarpingha, ICELAND (approx. 65.4995°N, 14.2332°W, altitude approximately 50 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genus Betula) and Salicaceae (genus Salix) were present.
The surrounding habitat was described as arctic tundra, corresponding to the IUCN habitat We map from the collector's description of the habitat to the International Union for Conservation of Nature (IUCN)'s definition using a standardised set of rules. Please see this page for a full list of IUCN habitats. 4.1: Grassland – Tundra.
According to the GPS data the collection was in the Iceland boreal birch forests and alpine tundra WWF ecoregion The World Wildlife Fund (WWF) have divided the world into 867 terrestrial ecoregions. The ecoregion here is estimated by mapping from the GPS coordinates of the collection using data made available by Dinerstein et al (2017). Use this webtool to explore the ecoregions visually or see a full list of current ecoregions on Wikipedia. (biome: Boreal Forests/Taiga) and Koppen climate code ET (Polar, tundra).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: yes.
Pileus: not recorded diameter; shape umbonate; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous not recorded; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 40; tears absent; white fimbriate edge not recorded.
Stipe: size not recorded; stipe Q not recorded; base cylindrical; floccosity fibrous; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure not recorded; smell not recorded; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, ellipsoid; colour through microscope not recorded; guttulate not recorded; papillate no; Spore Code: O1; P0; D0.
Basidia: analysis not yet complete.
Cheilocystidia: main shape clavate, cylindrical, lageniform, ventricose; special features long, septa; Cheilocystidia Ratios: A/M = 1.10; A/B = 0.53; B/M = 2.20.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.3) 10.9–12.7 (13.3) 11.7 11.7 0.590 Width (µm) (5.9) 6.0–7.0 (7.2) 6.5 6.5 0.280 Q (1.59) 1.65–1.93 (1.98) 1.80 1.81 0.09 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (32) 33–59 (61) 49 49 6.78 Apex Width (3.3) 4.0–6.3 (6.8) 5.2 5.3 0.730 Median Width (3.8) 4.0–5.7 (6.0) 4.8 4.8 0.59 Basal Width (4.7) 8.0–14.8 (17.2) 10.6 10.1 2.6
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1993) 5.65 °C 0.53 °C 70.25 mm Collection month (8/1993) 11.05 °C 6.00 °C 43.34 mm Max month (1993) 11.05 °C 6.00 °C 143.69 mm
- arrow_drop_downarrow_drop_upAnalyse this collection
Compare this collection to its species
This section compares data for this collection against its true species and also against the most likely species as determined by our identifier. More often than not these will be the same species, but where this is not the case, the data may be used to help explain why the identifier got it wrong.Image gallery
Detailed statistics
| Spore measurements | My value | Species mean value | Position |
|---|---|---|---|
| Count | 66.0 | 57.16 | 14th/43 |
| Average length | 11.7 | 10.97 | 9th–10th/44 |
| Average width | 6.5 | 6.38 | 14th–16th/44 |
| Standard deviation of length | 0.59 | 0.69 | 29th–31st/42 |
| Standard deviation of width | 0.28 | 0.36 | 38th/42 |
| Median length | 11.7 | 10.98 | 7th–11th/42 |
| Median width | 6.5 | 6.38 | 13th–15th/42 |
| Minimum length | 10.3 | 9.50 | 6th–9th/43 |
| Minimum width | 5.9 | 5.67 | 11th/43 |
| Low length | 10.9 | 9.98 | 5th–6th/43 |
| Low width | 6.0 | 5.88 | 13th–17th/43 |
| High length | 12.7 | 12.10 | 10th–12th/43 |
| High width | 7.0 | 6.97 | 20th–21st/43 |
| Max length | 13.3 | 12.74 | 7th–11th/43 |
| Max width | 7.2 | 7.30 | 22nd–23rd/43 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1 | 100% of collections |
| Perispore loosening | P0 | 100% of collections |
| Dextrinoidity | D0 | 73% of collections |