Taxonomy
Collection 1000032 (herbarium acc. no. PC 0022088) is Hebeloma velatum. It is the holotype of heterotypic synonym Hebeloma aprile Romagn. (1983).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000032 was collected by H. Romagnesi (R70-34) on 1st May 1970 in Foret de Hez,Le Val Hemont, nr Hermes(Oise), FRANCE (approx. 47.74°N, 2.54°W, altitude approximately 55 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genus Betula), Pinaceae (genus Pinus) and Salicaceae (genus Salix) were present.
The surrounding habitat was described as mixed woodland with a substrate of calcareous, mossy 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. 1.4: Forest – Temperate.
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: yes.
Pileus: 20–40 mm diameter; shape convex, umbonate; margin characters involute; viscosity tacky when moist; spotting not recorded; hygrophanous yes; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.
Lamellae: attachment adnexed, emarginate; maximum depth up to 8 mm; number of complete lamellae 40; tears absent; white fimbriate edge not recorded.
Stipe: 30–60 x 3–8 {median} x 3–8 {basal} mm; stipe Q 7.5–10.0; base cylindrical; floccosity fibrillose, pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base yes; slenderness measure 13.1; smell raphanoid weakly; taste raphanoid.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape ellipsoid; colour through microscope yellow pale; guttulate no; papillate no; Spore Code: O1; O2; P0; D0; D1.
Basidia: analysis not yet complete.
Cheilocystidia: main shape lageniform, ventricose; special features basal thickening, median thickening; Cheilocystidia Ratios: A/M = 1.17; A/B = 0.66; B/M = 1.84.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (9.0) 9.6–11.8 (13.2) 10.6 10.6 0.750 Width (µm) 5.6–6.7 (6.9) 6.2 6.2 0.340 Q (1.51) 1.61–1.87 (1.97) 1.72 1.70 0.09 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (41) 42–58 (61) 51 53 5.42 Apex Width (4.0) 4.3–6.4 (6.9) 5.3 5.3 0.640 Median Width (2.8) 4.3–5.5 (5.6) 4.8 4.9 0.59 Basal Width (5.9) 6.4–11.2 (11.7) 8.7 8.7 1.6
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1970) 15.16 °C 8.08 °C 69.89 mm Collection month (5/1970) 18.02 °C 8.31 °C 26.18 mm Max month (1970) 21.48 °C 13.47 °C 149.96 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 | 57.0 | 56.22 | 53rd–58th/111 |
| Average length | 10.6 | 10.95 | 78th–83rd/117 |
| Average width | 6.2 | 6.41 | 73rd–84th/117 |
| Standard deviation of length | 0.75 | 0.72 | 42nd–43rd/107 |
| Standard deviation of width | 0.34 | 0.38 | 63rd–67th/107 |
| Median length | 10.6 | 10.96 | 71st–76th/107 |
| Median width | 6.2 | 6.42 | 70th–79th/107 |
| Minimum length | 9.0 | 9.35 | 76th–89th/113 |
| Minimum width | 5.6 | 5.60 | 45th–60th/113 |
| Low length | 9.6 | 9.84 | 62nd–73rd/113 |
| Low width | 5.6 | 5.85 | 77th–92nd/113 |
| High length | 11.8 | 12.01 | 64th–68th/113 |
| High width | 6.7 | 7.02 | 81st–93rd/113 |
| Max length | 13.2 | 12.70 | 31st–34th/113 |
| Max width | 6.9 | 7.36 | 87th–93rd/113 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1; O2 | 98% of collections; 100% of collections |
| Perispore loosening | P0 | 100% of collections |
| Dextrinoidity | D0; D1 | 83% of collections; 99% of collections |