Taxonomy
Collection 18779 is Hebeloma syrjense.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 18779 was collected by N. Siegel (3101) on 24th August 2018 in Parks Highway, ~10 miles south of Denali, Alaska, UNITED STATES (approx. 63.496°N, 148.8152°W, altitude approximately 650 m above sea level - Google maps). The ectomycorrhizal families Salicaceae (genera Salix and Populus) and Pinaceae (genus Picea) were present.
The surrounding habitat was described as boreal, coniferous with a substrate of soil and litter.
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: 10–51 mm diameter; shape umbonate; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation unicolor; with colour at centre ochraceous; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 52; tears absent; white fimbriate edge not recorded.
Stipe: 63–103 x 3–8 {median} x 3–8 {basal} mm; stipe Q 12.9–21.0; base cylindrical; floccosity pruinose at apex; rooting not recorded; mycelial chords not recorded.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 79.2; smell none; taste bitter, raphanoid.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope yellow brown; guttulate yes; papillate no; Spore Code: O2; O3; P1; P2; D2; D3.
Basidia: 21.8–28.9 x 6.2–7.2 μm; ave. Q = 3.6; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical; special features septa, yellow contents; Cheilocystidia Ratios: A/M = 1.21; A/B = 1.10; B/M = 1.12.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 35 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis cylindrical, isodiametric up to 12 μm wide.
Caulocystidia: caulocystidia maximum length 60 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (7.0) 7.5–9.8 (10.0) 8.8 9.0 0.720 Width (µm) (4.6) 4.9–6.0 (6.3) 5.5 5.5 0.320 Q (1.30) 1.38–1.80 (2.01) 1.62 1.64 0.14 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length 29–43 (47) 36 34 5.14 Apex Width (3.9) 4.3–6.7 (7.1) 5.8 6.1 0.890 Median Width (3.4) 3.8–5.9 (6.2) 4.9 5.0 0.72 Basal Width (4.2) 4.3–6.8 (8.2) 5.4 5.2 0.93
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2018) 3.68 °C -5.58 °C 36.04 mm Collection month (8/2018) 13.52 °C 5.93 °C 108.36 mm Max month (2018) 19.27 °C 7.37 °C 108.36 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 | 128.0 | 52.23 | 1st/22 |
Average length | 8.8 | 8.60 | 7th–11th/23 |
Average width | 5.5 | 5.31 | 1st–5th/23 |
Standard deviation of length | 0.72 | 0.53 | 2nd/19 |
Standard deviation of width | 0.32 | 0.29 | 4th–5th/19 |
Median length | 9.0 | 8.61 | 4th–6th/19 |
Median width | 5.5 | 5.34 | 2nd–5th/19 |
Minimum length | 7.0 | 7.36 | 14th–16th/19 |
Minimum width | 4.6 | 4.57 | 8th–11th/19 |
Low length | 7.5 | 7.76 | 15th/19 |
Low width | 4.9 | 4.88 | 7th–12th/19 |
High length | 9.8 | 9.36 | 5th–6th/19 |
High width | 6.0 | 5.74 | 3rd/19 |
Max length | 10.0 | 9.69 | 7th/19 |
Max width | 6.3 | 5.95 | 2nd–4th/19 |
Spore feature | Value | Commonalities |
---|---|---|
Ornamentation | O2; O3 | 78% of collections; 95% of collections |
Perispore loosening | P1; P2 | 73% of collections; 95% of collections |
Dextrinoidity | D2; D3 | 17% of collections; 91% of collections |