Taxonomy
Collection 13499 (herbarium acc. no. LIP 83199, LIP 93199?) is Hebeloma erebium. It is the holotype of heterotypic synonym Hebeloma clavulipes var. hygrophanicum Bon (1994).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 13499 was collected by G. Tassi, det: M. Bon on 8th October 1993 in Foret d'Ourscamp, Oise, FRANCE (approx. 49.5369°N, 2.9313°E, altitude approximately 75 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as not recorded with a substrate of calcareous soil.
According to the GPS data the collection was in the European Atlantic 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 Cfb (Temperate, no dry season, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 30–50 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous yes; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.
Lamellae: attachment not recorded; maximum depth not recorded; number of complete lamellae 64; tears absent; white fimbriate edge weak.
Stipe: 50–60 x 3–6 {median} x 7–10 {basal} mm; stipe Q 10.0–16.7; base clavate, subbulbous; floccosity not recorded; rooting no; mycelial chords not recorded.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 19.9; smell raphanoid weakly; taste raphanoid weakly.
Spore deposit colour: analysis not yet complete.
Exsiccata: fragile.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, limoniform; colour through microscope brown; guttulate no; papillate yes; Spore Code: O3; P1; D2; D3.
Basidia: 23.8–27.4 x 8.9–11.5 μm; ave. Q = 2.5; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, lageniform, ventricose; special features apical thickening, many collapsed in exsiccata, yellow contents; Cheilocystidia Ratios: A/M = 1.25; A/B = 0.78; B/M = 1.66.
Pleurocystidia: only close to lamella edge.
Ixocutis: epicutis thickness (measured from exsiccata) 60 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis ellipsoid, thickly sausage-shaped up to 27 μm wide.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (9.7) 10.5–12.6 (12.8) 11.7 11.7 0.680 Width (µm) (6.0) 6.1–7.6 (7.8) 7.0 7.0 0.490 Q (1.51) 1.54–1.83 (1.93) 1.68 1.67 0.1 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (37) 38–58 (60) 46 44 6.94 Apex Width (4.2) 4.9–8.7 (9.0) 6.6 6.3 1.180 Median Width (3.7) 4.6–6.6 5.6 5.5 0.8 Basal Width (5.6) 5.9–11.4 (11.6) 9.3 9.6 1.7
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1993) 14.47 °C 6.09 °C 56.71 mm Collection month (10/1993) 12.78 °C 6.09 °C 75.33 mm Max month (1993) 22.34 °C 11.90 °C 109.47 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 | 65.0 | 36.47 | 3rd/15 |
| Average length | 11.7 | 11.84 | 9th/15 |
| Average width | 7.0 | 6.76 | 4th–5th/15 |
| Standard deviation of length | 0.68 | 0.73 | 10th/15 |
| Standard deviation of width | 0.49 | 0.38 | 3rd/15 |
| Median length | 11.7 | 11.85 | 9th/15 |
| Median width | 7.0 | 6.76 | 5th/15 |
| Minimum length | 9.7 | 10.42 | 12th/15 |
| Minimum width | 6.0 | 5.99 | 7th–9th/15 |
| Low length | 10.5 | 10.75 | 8th–10th/15 |
| Low width | 6.1 | 6.19 | 9th–10th/15 |
| High length | 12.6 | 12.96 | 9th/15 |
| High width | 7.6 | 7.35 | 4th/15 |
| Max length | 12.8 | 13.33 | 10th–11th/15 |
| Max width | 7.8 | 7.52 | 4th/15 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 80% of collections |
| Perispore loosening | P1 | 86% of collections |
| Dextrinoidity | D2; D3 | 26% of collections; 100% of collections |