Taxonomy
Collection 1000314 (herbarium acc. no. TENN-F-023364) is Hebeloma subaustrale. It is the holotype of heterotypic synonym Hebeloma angustisporium Hesler (1977).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000314 was collected by L.R. Hesler (LRH23364) on 23rd August 1959 in Blount, Townsend, Townsend, GSMNP, Cades Cove , 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.
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: 25–40 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.
Lamellae: attachment adnate, emarginate; maximum depth not recorded; number of complete lamellae 86; tears absent; white fimbriate edge absent.
Stipe: 50–70 x 9–11 {median} x 11–14 {basal} mm; stipe Q 5.6–6.4; base clavate; floccosity pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base no; slenderness measure 11.1; smell raphanoid; taste raphanoid.
Spore deposit colour: analysis not yet complete.
Exsiccata: hard.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, fusoid; colour through microscope yellow; guttulate no; papillate no; Spore Code: O1; O2; P1; D2; D3.
Basidia: 23.1–32.1 x 5.2–7.1 μm; ave. Q = 4.3; basidia spore nature not recorded.
Cheilocystidia: main shape clavate, cylindrical, ventricose; special features not recorded; Cheilocystidia Ratios: A/M = 1.04; A/B = 0.86; B/M = 1.24.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 100 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis cylindrical, ellipsoid, thickly sausage-shaped up to 13 μm wide.
Caulocystidia: caulocystidia maximum length 100 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (8.0) 8.1–9.0 8.6 8.5 0.300 Width (µm) (4.1) 4.6–5.3 (5.7) 5.0 5.1 0.240 Q (1.45) 1.59–1.89 (1.97) 1.73 1.73 0.09 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (19) 20–36 29 31 5.65 Apex Width (2.6) 3.7–5.4 (5.9) 4.5 4.4 0.560 Median Width (3.5) 3.6–5.2 (5.5) 4.3 4.3 0.51 Basal Width (3.9) 4.0–6.9 (7.4) 5.3 5.4 0.93
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1959) 18.43 °C 5.40 °C 135.52 mm Collection month (8/1959) 28.15 °C 15.49 °C 87.90 mm Max month (1959) 28.15 °C 15.49 °C 188.67 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 | 53.0 | 74.43 | 6th/7 |
| Average length | 8.6 | 9.31 | 7th/7 |
| Average width | 5.0 | 5.00 | 3rd–5th/7 |
| Standard deviation of length | 0.3 | 0.66 | 7th/7 |
| Standard deviation of width | 0.24 | 0.27 | 4th–5th/7 |
| Median length | 8.5 | 9.39 | 7th/7 |
| Median width | 5.1 | 4.99 | 3rd/7 |
| Minimum length | 8.0 | 7.56 | 1st–2nd/7 |
| Minimum width | 4.1 | 4.37 | 6th/7 |
| Low length | 8.1 | 8.17 | 4th–5th/7 |
| Low width | 4.6 | 4.59 | 4th–5th/7 |
| High length | 9.0 | 10.21 | 7th/7 |
| High width | 5.3 | 5.44 | 4th–5th/7 |
| Max length | 9.0 | 10.59 | 7th/7 |
| Max width | 5.7 | 5.69 | 3rd–5th/7 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1; O2 | 71% of collections; 71% of collections |
| Perispore loosening | P1 | 100% of collections |
| Dextrinoidity | D2; D3 | 57% of collections; 57% of collections |