Taxonomy
Collection 18949 (herbarium acc. no. WTU-F-023678) is Hebeloma eburneum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 18949 was collected by G.A. Laursen, S.L. Stephenson, J.C. Landolt (GAL4406 A) on 29th July 1991 in Denali, Wonder Lake, Mile 85, DNP&P, Alaska, UNITED STATES (approx. 63.4864°N, 150.8687°W, altitude approximately 630 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the Alaska-St. Elias Range 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: Tundra) and Koppen climate code Dfc (Cold, no dry season, cold summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: analysis not yet complete.
Lamellae: attachment not recorded; maximum depth not recorded; number of complete lamellae 64; tears not recorded; white fimbriate edge not recorded.
Stipe: analysis not yet complete.
Context: analysis not yet complete.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope not recorded; guttulate not recorded; papillate no; Spore Code: O2; O3; P0; D1.
Basidia: 27.1–31.5 x 7.5–9.0 μm; ave. Q = 3.5; basidia spore nature not recorded.
Cheilocystidia: main shape clavate-stipitate; special features conglutinate; Cheilocystidia Ratios: A/M = 2.23; A/B = 2.70; B/M = 0.91.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.0) 10.2–12.2 (12.9) 11.1 11.1 0.650 Width (µm) (5.6) 6.1–7.4 (8.7) 6.6 6.5 0.440 Q (1.34) 1.52–1.86 (1.98) 1.68 1.67 0.11 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (49) 51–68 (73) 57 56 6.1 Apex Width (7.4) 8.0–11.4 (12.0) 9.3 8.9 1.210 Median Width 3.0–6.0 (6.3) 4.4 4.3 1.09 Basal Width (1.8) 2.4–5.4 (5.7) 3.8 3.8 0.98
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1991) 1.94 °C -7.69 °C 43.23 mm Collection month (7/1991) 16.80 °C 6.42 °C 89.43 mm Max month (1991) 18.25 °C 6.42 °C 96.33 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 | 87.0 | 51.46 | 8th/90 |
| Average length | 11.1 | 11.78 | 77th–80th/92 |
| Average width | 6.6 | 6.54 | 31st–42nd/92 |
| Standard deviation of length | 0.65 | 0.74 | 67th/90 |
| Standard deviation of width | 0.44 | 0.37 | 22nd–24th/90 |
| Median length | 11.1 | 11.80 | 75th–77th/90 |
| Median width | 6.5 | 6.54 | 42nd–53rd/90 |
| Minimum length | 10.0 | 10.23 | 61st–67th/92 |
| Minimum width | 5.6 | 5.78 | 55th–70th/92 |
| Low length | 10.2 | 10.67 | 73rd–77th/92 |
| Low width | 6.1 | 5.99 | 27th–34th/92 |
| High length | 12.2 | 12.89 | 73rd–76th/92 |
| High width | 7.4 | 7.12 | 20th–27th/92 |
| Max length | 12.9 | 13.47 | 62nd–67th/92 |
| Max width | 8.7 | 7.43 | 1st–2nd/92 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2; O3 | 39% of collections; 88% of collections |
| Perispore loosening | P0 | 31% of collections |
| Dextrinoidity | D1 | 81% of collections |