Taxonomy
Collection 17871 is Hebeloma album.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 17871 was collected by H.J. Beker, L. Davies on 16th August 2018 in Chena Lakes Recreational Area, North Pole, Alaska, UNITED STATES (64.7972°N, 147.1918°W, altitude approximately 185 m above sea level - Google maps). The ectomycorrhizal family Betulaceae (genus Betula) was present.
The surrounding habitat was described as boreal, mixed woodland with a substrate of grassy soil, 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. 1.1: Forest – Boreal.
According to the GPS data the collection was in the Interior Alaska-Yukon lowland taiga 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 Dfc (Cold, no dry season, cold summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 19–26 mm diameter; shape umbonate; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre cream; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 3 mm; number of complete lamellae 54; tears visible with naked eye; white fimbriate edge present.
Stipe: 30–40 x 6 {median} x 6 {basal} mm; stipe Q 5.0–6.7; base cylindrical; floccosity pruinose at apex, velute; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 9.1; smell none; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, limoniform; colour through microscope brown; guttulate yes; papillate very strongly; Spore Code: O3; P1; P2; D2; D3.
Basidia: 25.6–33.9 x 7.2–9.3 μm; ave. Q = 3.3; basidia spore nature not recorded.
Cheilocystidia: main shape capitate-stipitate, clavate-lageniform or clavate-ventricose; special features septa, yellow contents; Cheilocystidia Ratios: A/M = 2.50; A/B = 1.68; B/M = 1.54.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 80 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis ovate up to 20 μm wide.
Caulocystidia: caulocystidia maximum length 100 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (11.2) 11.4–14.5 (15.0) 13.0 13.0 0.900 Width (µm) (6.2) 6.4–7.4 (7.6) 6.9 6.8 0.300 Q (1.68) 1.71–2.06 (2.23) 1.89 1.88 0.11 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (43) 44–75 (85) 61 64 11.67 Apex Width (3.7) 4.7–12.1 (16.3) 8.1 7.8 2.240 Median Width (2.8) 2.9–4.3 (6.0) 3.7 3.7 0.68 Basal Width (3.4) 4.4–6.9 (8.9) 5.6 5.4 1.11
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2018) 3.90 °C -6.14 °C 28.31 mm Collection month (8/2018) 16.88 °C 9.08 °C 98.19 mm Max month (2018) 23.09 °C 11.68 °C 98.19 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 | 55.0 | 68.93 | 26th–28th/41 |
| Average length | 13.0 | 11.67 | 2nd–3rd/43 |
| Average width | 6.9 | 6.42 | 7th–8th/43 |
| Standard deviation of length | 0.9 | 0.75 | 5th/41 |
| Standard deviation of width | 0.3 | 0.39 | 28th–29th/41 |
| Median length | 13.0 | 11.63 | 2nd/41 |
| Median width | 6.8 | 6.41 | 7th–11th/41 |
| Minimum length | 11.2 | 10.14 | 2nd–3rd/43 |
| Minimum width | 6.2 | 5.59 | 4th/43 |
| Low length | 11.4 | 10.54 | 4th–6th/43 |
| Low width | 6.4 | 5.86 | 4th/43 |
| High length | 14.5 | 12.83 | 2nd/43 |
| High width | 7.4 | 7.03 | 16th–18th/43 |
| Max length | 15.0 | 13.50 | 2nd/43 |
| Max width | 7.6 | 7.37 | 19th–22nd/43 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 100% of collections |
| Perispore loosening | P1; P2 | 83% of collections; 25% of collections |
| Dextrinoidity | D2; D3 | 69% of collections; 44% of collections |