Taxonomy
Collection 17921 is Hebeloma nanum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 17921 was collected by N. Siegel (3085) on 21st August 2018 in Quartz Creek, Cooper's landing, Kenai, Alaska, UNITED STATES (approx. 60.5433°N, 149.6152°W, altitude approximately 250 m above sea level - Google maps). The ectomycorrhizal families Salicaceae (genus Populus), Pinaceae (genus Picea) and Betulaceae (genus Betula) were present.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the Pacific Coastal Mountain icefields and 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 Dsc (Cold, dry summer, cold summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 24–45 mm diameter; shape convex, umbonate; margin characters involute; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre ochraceous; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment decurrent tooth; maximum depth up to 2 mm; number of complete lamellae 108; tears absent; white fimbriate edge weak.
Stipe: 43–45 x 9–13 {median} x 12–13 {basal} mm; stipe Q 3.5–4.8; base clavate, cylindrical; floccosity floccose at apex, velute; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base weak; slenderness measure 6.0; 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, fusoid; colour through microscope not recorded; guttulate not recorded; papillate yes; Spore Code: O1; P0; P1; D2; D3.
Basidia: 23.2–27.2 x 6.4–7.9 μm; ave. Q = 3.6; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, cylindrical, clavate-lageniform or clavate-ventricose; special features bifurcate, conglutinate, irregular; Cheilocystidia Ratios: A/M = 1.27; A/B = 1.26; B/M = 1.04.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (8.5) 9.1–10.2 (10.4) 9.7 9.7 0.360 Width (µm) (4.6) 4.8–5.1 (5.3) 5.0 5.0 0.130 Q (1.61) 1.80–2.08 (2.17) 1.95 1.95 0.09 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length 15–25 (27) 19 18 3.89 Apex Width not recorded not recorded not recorded not recorded Median Width (2.8) 2.9–4.9 (5.3) 3.9 4.2 0.75 Basal Width (2.6) 2.8–5.6 (5.8) 4.0 3.8 1.0
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2018) 7.26 °C 0.44 °C 86.98 mm Collection month (8/2018) 15.04 °C 9.54 °C 140.52 mm Max month (2018) 18.57 °C 9.54 °C 157.70 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 | 121.0 | 72.00 | 3rd/26 |
| Average length | 9.7 | 8.99 | 3rd–4th/26 |
| Average width | 5.0 | 4.79 | 1st–8th/26 |
| Standard deviation of length | 0.36 | 0.52 | 25th/26 |
| Standard deviation of width | 0.13 | 0.23 | 25th–26th/26 |
| Median length | 9.7 | 9.01 | 3rd–4th/26 |
| Median width | 5.0 | 4.81 | 3rd–8th/26 |
| Minimum length | 8.5 | 7.73 | 2nd–3rd/26 |
| Minimum width | 4.6 | 4.25 | 1st–2nd/26 |
| Low length | 9.1 | 8.17 | 1st/26 |
| Low width | 4.8 | 4.45 | 1st/26 |
| High length | 10.2 | 9.82 | 11th–12th/26 |
| High width | 5.1 | 5.17 | 17th–19th/26 |
| Max length | 10.4 | 10.32 | 12th–13th/26 |
| Max width | 5.3 | 5.33 | 16th–19th/26 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1 | 46% of collections |
| Perispore loosening | P0; P1 | 50% of collections; 76% of collections |
| Dextrinoidity | D2; D3 | 50% of collections; 84% of collections |