Taxonomy
Collection 10345 (herbarium acc. no. BR 5020184122478) is the epitype of Hebeloma nauseosum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 10345 was collected by H.J. Beker on 16th October 2004 in Carpegna7, Marches, ITALY (43.7718°N, 12.3402°E, altitude approximately 730 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Quercus) was present.
The surrounding habitat was described as deciduous woodland with a substrate of bare 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 Italian sclerophyllous and semi-deciduous 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: Mediterranean Forests, Woodlands & Scrub) and Koppen climate code Cfb (Temperate, no dry season, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 22–46 mm diameter; shape umbonate broadly; margin characters involute, smooth; viscosity tacky when moist; spotting yes; hygrophanous yes; colour variation unicolor; with colour at centre pale pinkish buff; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment adnate, decurrent tooth, emarginate; maximum depth up to 2 mm; number of complete lamellae 36; tears absent; white fimbriate edge absent.
Stipe: 53–70 x 5–11 {median} x 6–12 {basal} mm; stipe Q 6.4–13.4; base cylindrical, tapering; floccosity fibrillose; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base yes; slenderness measure 16.1; smell sacchariolentia, sweet; taste bitter weakly.
Spore deposit colour: umber, brownish olive.
Exsiccata: normal.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, limoniform; colour through microscope brown; guttulate yes; papillate yes; Spore Code: O3; P1; P2; D3; D4.
Basidia: 33.2–37.8 x 8.2–9.7 μm; ave. Q = 4.0; basidia spore nature not recorded.
Cheilocystidia: main shape balloon-shaped, cylindrical; special features median thickening, septa; Cheilocystidia Ratios: A/M = 1.59; A/B = 1.71; B/M = 0.98.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 120 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis ellipsoid up to 20 μm wide.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (12.5) 12.9–16.1 (16.5) 14.3 14.1 0.860 Width (µm) (7.2) 7.5–8.4 (8.7) 8.0 8.0 0.320 Q (1.60) 1.64–2.07 (2.16) 1.79 1.77 0.12 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (43) 45–71 (75) 58 60 10.81 Apex Width (4.8) 5.6–10.2 (12.0) 7.8 7.7 1.530 Median Width (4.1) 4.2–6.9 (7.0) 5.6 5.5 1.12 Basal Width (3.2) 3.6–6.5 (6.6) 5.4 5.7 1.27
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2004) 16.19 °C 8.78 °C 89.27 mm Collection month (10/2004) 17.98 °C 12.61 °C 141.88 mm Max month (2004) 27.03 °C 17.36 °C 164.95 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 | 61.0 | 42.37 | 5th/30 |
| Average length | 14.3 | 14.05 | 12th/31 |
| Average width | 8.0 | 8.05 | 14th–16th/31 |
| Standard deviation of length | 0.86 | 0.91 | 16th/28 |
| Standard deviation of width | 0.32 | 0.44 | 23rd–24th/28 |
| Median length | 14.1 | 13.89 | 12th/28 |
| Median width | 8.0 | 7.94 | 12th–13th/28 |
| Minimum length | 12.5 | 12.17 | 10th–12th/28 |
| Minimum width | 7.2 | 7.15 | 12th–13th/28 |
| Low length | 12.9 | 12.57 | 11th/28 |
| Low width | 7.5 | 7.36 | 10th–11th/28 |
| High length | 16.1 | 15.24 | 6th–8th/28 |
| High width | 8.4 | 8.63 | 20th/28 |
| Max length | 16.5 | 15.85 | 8th–9th/28 |
| Max width | 8.7 | 8.93 | 18th–20th/28 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 100% of collections |
| Perispore loosening | P1; P2 | 46% of collections; 80% of collections |
| Dextrinoidity | D3; D4 | 90% of collections; 50% of collections |