Taxonomy
Collection 1000219 (herbarium acc. no. ROHB00907) is Hebeloma velutipes. It is the holotype of heterotypic synonym Hebeloma stenocystis J. Favre ex Quadr. (1989) [“1988”].Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000219 was collected by L. Quadraccia on 11th October 1984 in Col de Saxel, Mont Voirons,, Haute Savoie, FRANCE (45.574°N, 6.1309°E, altitude approximately 1200 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Abies) was present.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the Alps conifer and 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 Conifer Forests) and Koppen climate code Cfa (Temperate, no dry season, hot summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 30–60 mm diameter; shape convex, umbonate, umbonate broadly; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous yes; colour variation unicolor; with colour at centre not recorded; and colour at margin cream; with remains of universal veil not recorded.
Lamellae: attachment adnate, emarginate; maximum depth up to 8 mm; number of complete lamellae 60; tears visible with naked eye; white fimbriate edge present.
Stipe: 28–70 x 6–10 {median} x 9–15 {basal} mm; stipe Q 4.7–7.0; base bulbous, clavate; floccosity floccose at apex, pruinose; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base yes; slenderness measure 6.3; smell earthy, raphanoid weakly; taste bitter weakly, raphanoid weakly.
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 no; papillate no; Spore Code: O3; P1; P2; D3.
Basidia: 35.6–37.1 x 7.8–8.0 μm; ave. Q = 4.6; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, clavate-lageniform or clavate-ventricose, lageniform, ventricose; special features bifurcate; Cheilocystidia Ratios: A/M = 1.50; A/B = 1.26; B/M = 1.34.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: caulocystidia maximum length 150 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.6) 10.7–13.2 (13.9) 12.0 12.0 0.840 Width (µm) (6.0) 6.3–7.5 (7.6) 6.7 6.7 0.390 Q (1.58) 1.61–1.95 (1.99) 1.77 1.77 0.11 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (45) 46–63 (70) 56 55 6.57 Apex Width (5.2) 5.4–8.0 (8.7) 6.7 6.6 0.860 Median Width 3.3–5.4 (5.8) 4.4 4.5 0.71 Basal Width (2.9) 3.7–8.8 (9.2) 5.8 5.6 1.93
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1984) 15.38 °C 5.33 °C 78.43 mm Collection month (10/1984) 16.09 °C 6.96 °C 98.03 mm Max month (1984) 27.63 °C 13.64 °C 137.00 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 | 28.0 | 52.33 | 115th–118th/149 |
| Average length | 12.0 | 11.12 | 13th–16th/149 |
| Average width | 6.7 | 6.55 | 42nd–60th/149 |
| Standard deviation of length | 0.84 | 0.70 | 25th–30th/132 |
| Standard deviation of width | 0.39 | 0.33 | 27th–30th/132 |
| Median length | 12.0 | 11.06 | 9th–11th/132 |
| Median width | 6.7 | 6.55 | 41st–53rd/132 |
| Minimum length | 10.6 | 9.61 | 14th–16th/132 |
| Minimum width | 6.0 | 5.85 | 45th–58th/132 |
| Low length | 10.7 | 10.04 | 20th–24th/132 |
| Low width | 6.3 | 6.07 | 33rd–46th/132 |
| High length | 13.2 | 12.10 | 11th–14th/132 |
| High width | 7.5 | 7.03 | 16th–21st/132 |
| Max length | 13.9 | 12.59 | 13th–15th/132 |
| Max width | 7.6 | 7.31 | 31st–36th/132 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 31% of collections |
| Perispore loosening | P1; P2 | 56% of collections; 1% of collections |
| Dextrinoidity | D3 | 92% of collections |