Taxonomy
Collection 13440 (herbarium acc. no. MCVE 775) is Hebeloma eburneum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 13440 was collected by L.L. Chiusa on 20th October 1996 in Bisnate di Zelo Bonpersico, Lombardy, ITALY (approx. 45.4065°N, 9.4574°E, altitude approximately 150 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Populus) was present.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the Po Basin 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 Cfa (Temperate, no dry season, hot summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 20–60 mm diameter; shape convex, umbonate broadly; margin characters crenulate, smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre ochraceous; and colour at margin cream, pale cream; with remains of universal veil no.
Lamellae: attachment adnexed; maximum depth not recorded; number of complete lamellae 60; tears visible with naked eye; white fimbriate edge present.
Stipe: 20–60 x 3–8 {median} x 3–8 {basal} mm; stipe Q 6.7–7.5; base clavate, cylindrical; floccosity floccose at apex, floccose weak, pruinose, pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base weak; slenderness measure 7.1; smell cocoa, raphanoid; taste bitter weakly.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, limoniform; colour through microscope not recorded; guttulate not recorded; papillate very strongly; Spore Code: O3; O4; P3; D2.
Basidia: 28.0–33.9 x 8.1–9.3 μm; ave. Q = 3.6; basidia spore nature not recorded.
Cheilocystidia: main shape clavate-stipitate, clavate-lageniform or clavate-ventricose; special features clamped septa, geniculate, median thickening, septa; Cheilocystidia Ratios: A/M = 1.75; A/B = 1.16; B/M = 1.58.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 120 μm; ixocutis maximum hyphae width 8 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical, ellipsoid, thickly sausage-shaped up to 19 μm wide.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.3) 10.8–13.2 (14.1) 11.9 11.9 0.800 Width (µm) (5.3) 5.7–7.3 (8.0) 6.5 6.5 0.500 Q (1.50) 1.55–2.13 (2.25) 1.85 1.83 0.17 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length 39–55 (62) 47 48 6.13 Apex Width (5.8) 6.5–9.5 (10.6) 8.2 8.3 1.010 Median Width (3.3) 3.5–5.1 (5.4) 4.7 4.8 0.51 Basal Width (3.7) 5.4–9.6 (9.9) 7.4 7.4 1.46
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1996) 16.46 °C 7.72 °C 86.63 mm Collection month (10/1996) 16.41 °C 8.86 °C 150.75 mm Max month (1996) 27.69 °C 16.51 °C 151.63 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 | 50.0 | 51.46 | 58th–59th/90 |
| Average length | 11.9 | 11.78 | 36th–40th/92 |
| Average width | 6.5 | 6.54 | 43rd–56th/92 |
| Standard deviation of length | 0.8 | 0.74 | 31st–33rd/90 |
| Standard deviation of width | 0.5 | 0.37 | 11th–13th/90 |
| Median length | 11.9 | 11.80 | 36th–41st/90 |
| Median width | 6.5 | 6.54 | 42nd–53rd/90 |
| Minimum length | 10.3 | 10.23 | 33rd–41st/92 |
| Minimum width | 5.3 | 5.78 | 90th–91st/92 |
| Low length | 10.8 | 10.67 | 33rd–39th/92 |
| Low width | 5.7 | 5.99 | 74th–80th/92 |
| High length | 13.2 | 12.89 | 31st–33rd/92 |
| High width | 7.3 | 7.12 | 28th–36th/92 |
| Max length | 14.1 | 13.47 | 24th–27th/92 |
| Max width | 8.0 | 7.43 | 10th–14th/92 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3; O4 | 88% of collections; 1% of collections |
| Perispore loosening | P3 | 1% of collections |
| Dextrinoidity | D2 | 50% of collections |