Taxonomy
Collection 17441 (herbarium acc. no. TENN-F-017230) is Hebeloma nitidum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 17441 was collected by det: Hesler on 28th October 1945 in Townsend, GSMNP, [Great Smoky Mountains National Park], Cades Cove, Tennessee, UNITED STATES (approx. 35.6019°N, 83.8114°W, altitude approximately 550 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Quercus) was present.
The surrounding habitat was described as not recorded with a substrate of soil.
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: 20–40 mm diameter; shape not recorded; margin characters involute; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation unicolor; with colour at centre greyish brown; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment not recorded; maximum depth not recorded; number of complete lamellae 64; tears absent; white fimbriate edge present.
Stipe: 30–60 x 5–10 {median} x 5–10 {basal} mm; stipe Q 6.0; base cylindrical; floccosity fibrillose, pruinose at apex; rooting not recorded; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base yes; slenderness measure 9.0; smell none; taste bitter.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape not recorded; colour through microscope not recorded; guttulate not recorded; papillate yes; Spore Code: O3; O4; P2; D3; D4.
Basidia: 21.6–30.3 x 6.2–7.8 μm; ave. Q = 3.7; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical, ventricose; special features not recorded; Cheilocystidia Ratios: A/M = 0.98; A/B = 0.81; B/M = 1.29.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (8.5) 9.0–10.1 (10.2) 9.5 9.4 0.340 Width (µm) (5.6) 5.7–6.4 6.0 6.0 0.220 Q (1.47) 1.49–1.74 (1.76) 1.57 1.56 0.07 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (26) 30–40 (44) 34 34 4.32 Apex Width 3.1–4.8 (5.7) 4.0 4.0 0.620 Median Width (3.3) 3.7–4.9 (5.4) 4.1 4.1 0.43 Basal Width (3.8) 3.9–6.8 (7.1) 5.2 5.1 0.97
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1945) --- °C --- °C --- mm Collection month (10/1945) --- °C --- °C --- mm Max month (1945) --- °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 | 47.0 | 67.14 | 13th/14 |
| Average length | 9.5 | 9.86 | 14th/14 |
| Average width | 6.0 | 5.96 | 5th–8th/14 |
| Standard deviation of length | 0.34 | 0.53 | 14th/14 |
| Standard deviation of width | 0.22 | 0.29 | 11th–14th/14 |
| Median length | 9.4 | 9.89 | 14th/14 |
| Median width | 6.0 | 5.99 | 6th–8th/14 |
| Minimum length | 8.5 | 8.56 | 8th–12th/14 |
| Minimum width | 5.6 | 5.26 | 1st–2nd/14 |
| Low length | 9.0 | 8.99 | 6th–9th/14 |
| Low width | 5.7 | 5.47 | 2nd–4th/14 |
| High length | 10.1 | 10.69 | 14th/14 |
| High width | 6.4 | 6.41 | 7th–10th/14 |
| Max length | 10.2 | 10.89 | 14th/14 |
| Max width | 6.4 | 6.53 | 10th–12th/14 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3; O4 | 100% of collections; 100% of collections |
| Perispore loosening | P2 | 28% of collections |
| Dextrinoidity | D3; D4 | 78% of collections; 78% of collections |