Taxonomy
Collection 1000129 (herbarium acc. no. C JV-84-1371) is the holotype of Hebeloma sordescens.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000129 was collected by J. Vesterholt (84-1371) on 29th September 1984 in Kongelunden,Amager UTM UB 47,61 TBU 46, NEZ, DENMARK (approx. 55.57°N, 12.57°E, altitude approximately 0 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genera Betula and Corylus) and Fagaceae (genus Quercus) were present.
The surrounding habitat was described as not recorded with a substrate of soil.
According to the GPS data the collection was in the Baltic mixed forests 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: Temperate Broadleaf & Mixed Forests) and Koppen climate code Dfb (Cold, no dry season, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: yes.
Pileus: 15–50 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre cinnamon; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 56; tears absent; white fimbriate edge weak.
Stipe: 25–90 x 4–8 {median} x 6–13 {basal} mm; stipe Q 6.3–11.3; base clavate, subbulbous; floccosity fibrillose, floccose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 15.3; smell raphanoid; taste bitter, raphanoid.
Spore deposit colour: analysis not yet complete.
Exsiccata: pileus blackening.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope yellow brown; guttulate no; papillate yes; Spore Code: O2; P0; P1; D3.
Basidia: 20.9–28.9 x 6.7–8.3 μm; ave. Q = 3.5; basidia spore nature not recorded.
Cheilocystidia: main shape lageniform, ventricose; special features septa; Cheilocystidia Ratios: A/M = 1.09; A/B = 0.55; B/M = 2.06.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 120 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis isodiametric, oblong.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.3) 10.4–12.4 (13.7) 11.4 11.4 0.650 Width (µm) (5.3) 5.7–6.8 (7.1) 6.2 6.2 0.350 Q (1.66) 1.72–2.06 (2.08) 1.84 1.82 0.1 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (31) 33–63 (85) 48 47 11.85 Apex Width (3.4) 3.8–6.3 (7.3) 5.0 5.1 0.800 Median Width (2.8) 3.6–6.0 (6.4) 4.6 4.4 0.9 Basal Width (5.3) 7.0–11.4 (12.0) 9.2 9.0 1.46
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1984) 10.97 °C 5.25 °C 50.02 mm Collection month (9/1984) 14.80 °C 8.96 °C 89.37 mm Max month (1984) 21.09 °C 13.16 °C 114.67 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 | 60.0 | 43.25 | 6th/16 |
| Average length | 11.4 | 11.01 | 6th/17 |
| Average width | 6.2 | 6.26 | 10th/17 |
| Standard deviation of length | 0.65 | 0.70 | 10th/16 |
| Standard deviation of width | 0.35 | 0.31 | 5th/16 |
| Median length | 11.4 | 10.97 | 5th–6th/16 |
| Median width | 6.2 | 6.25 | 9th/16 |
| Minimum length | 10.3 | 9.77 | 5th–6th/17 |
| Minimum width | 5.3 | 5.67 | 13th–15th/17 |
| Low length | 10.4 | 10.16 | 6th–7th/17 |
| Low width | 5.7 | 5.82 | 9th–12th/17 |
| High length | 12.4 | 12.09 | 6th–8th/17 |
| High width | 6.8 | 6.71 | 8th–10th/17 |
| Max length | 13.7 | 17.45 | 3rd–4th/17 |
| Max width | 7.1 | 6.88 | 5th–6th/17 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2 | 100% of collections |
| Perispore loosening | P0; P1 | 55% of collections; 72% of collections |
| Dextrinoidity | D3 | 100% of collections |