Taxonomy
Collection 1000318 (herbarium acc. no. TENN-F-016572) is Hebeloma ingratum. It is the holotype of heterotypic synonym Hebeloma asperulatum Hesler (1977).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000318 was collected by L.R. Hesler (LRH16572) on 22nd October 1944 in Cades Cove, Great Smoky Mts. National Park, Tennessee, UNITED STATES (approx. 35.6019°N, 83.8114°W, altitude approximately 550 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as not recorded with a substrate of soil and litter.
According to the GPS data the collection was in the Appalachian-Blue Ridge 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: 40–60 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation two-colour; with colour at centre not recorded; and colour at margin cream; with remains of universal veil no.
Lamellae: attachment adnate; maximum depth not recorded; number of complete lamellae 68; tears not recorded; white fimbriate edge weak.
Stipe: 60–150 x 7–10 {median} x 9–11 {basal} mm; stipe Q 8.6–15.0; base bulbous, cylindrical; floccosity pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base no; slenderness measure 25.2; smell raphanoid; taste bitter, raphanoid.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, fusoid; colour through microscope brown yellow, yellow; guttulate no; papillate no; Spore Code: O2; O3; P1; P2; D1.
Basidia: 23.9–29.3 x 5.8–7.6 μm; ave. Q = 3.9; basidia spore nature not recorded.
Cheilocystidia: main shape clavate-stipitate, clavate-lageniform or clavate-ventricose; special features many collapsed in exsiccata, median thickening, septa; Cheilocystidia Ratios: A/M = 1.98; A/B = 1.42; B/M = 1.40.
Pleurocystidia: yes.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (9.4) 9.6–11.9 11.0 11.2 0.760 Width (µm) (5.1) 5.5–6.5 (6.9) 6.0 6.0 0.340 Q (1.47) 1.57–2.04 (2.13) 1.84 1.86 0.16 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (28) 34–59 (60) 47 43 10.16 Apex Width (4.9) 5.0–7.1 (7.6) 6.0 6.1 0.740 Median Width (2.0) 2.2–4.2 (5.0) 3.2 3.1 0.71 Basal Width (2.9) 3.3–5.2 (5.4) 4.4 4.6 0.7
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1944) --- °C --- °C --- mm Collection month (10/1944) --- °C --- °C --- mm Max month (1944) --- °C --- °C --- 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 | 44.0 | 67.42 | 19th/19 |
| Average length | 11.0 | 10.63 | 1st/19 |
| Average width | 6.0 | 5.98 | 7th/19 |
| Standard deviation of length | 0.76 | 0.69 | 7th–8th/19 |
| Standard deviation of width | 0.34 | 0.32 | 8th–10th/19 |
| Median length | 11.2 | 10.67 | 1st/19 |
| Median width | 6.0 | 6.00 | 7th–9th/19 |
| Minimum length | 9.4 | 8.98 | 2nd–3rd/19 |
| Minimum width | 5.1 | 5.20 | 13th–15th/19 |
| Low length | 9.6 | 9.53 | 6th–9th/19 |
| Low width | 5.5 | 5.47 | 7th/19 |
| High length | 11.9 | 11.68 | 5th–8th/19 |
| High width | 6.5 | 6.47 | 8th–9th/19 |
| Max length | 11.9 | 12.26 | 13th–14th/19 |
| Max width | 6.9 | 6.73 | 6th–8th/19 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2; O3 | 52% of collections; 89% of collections |
| Perispore loosening | P1; P2 | 89% of collections; 26% of collections |
| Dextrinoidity | D1 | 42% of collections |