Taxonomy
Collection 1000035 (herbarium acc. no. C JV93-553) is the holotype of Hebeloma aestivale.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000035 was collected by J. Vesterholt (93-553) on 10th August 1993 in Arhus, Forstbotanisk Have UTM NH7420 TBU 21, E-Jylland, DENMARK (approx. 56.12°N, 10.2°E, altitude approximately 55 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Quercus) was present.
The surrounding habitat was described as parkland grassland with a substrate of calcareous, grassy 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. 14.5: Urban Areas.
According to the GPS data the collection was in the Koppen climate code Dfb (Cold, no dry season, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 17–58 mm diameter; shape convex, umbonate; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre dark pinkish buff, ochraceous, clay-buff, yellowish brown, cinnamon; and colour at margin dark pinkish buff, pinkish buff, pale pinkish buff; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 50; tears visible with x10 lens; white fimbriate edge present.
Stipe: 19–65 x 4–13 {median} x 4–12 {basal} mm; stipe Q 4.2–5.0; base cylindrical; floccosity floccose; rooting no; mycelial chords yes.
Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base weak; slenderness measure 5.2; smell cocoa, raphanoid weakly; taste bitter, raphanoid 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 yellow brown; guttulate no; papillate yes; Spore Code: O3; P3; D3.
Basidia: 31.6–32.5 x 7.9–10.1 μm; ave. Q = 3.6; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate; special features clamped septa, many collapsed in exsiccata; Cheilocystidia Ratios: A/M = 1.45; A/B = 1.22; B/M = 1.23.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 200 μm; ixocutis maximum hyphae width 3 μm; ixocutis hyphae encrustation not recorded; shape of trama elements beneath subcutis not recorded.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) 12.2–13.3 (13.5) 12.7 12.6 0.470 Width (µm) 6.7–7.3 (7.4) 7.0 7.1 0.240 Q 1.72–1.88 (1.90) 1.80 1.80 0.07 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (54) 55–87 (99) 69 67 11.35 Apex Width (3.8) 4.1–7.4 (7.8) 5.7 5.6 1.030 Median Width (2.9) 3.3–4.7 (4.9) 4.1 4.2 0.54 Basal Width (3.0) 3.8–5.9 (6.0) 5.1 5.1 0.84
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1993) 11.09 °C 4.59 °C 52.96 mm Collection month (8/1993) 17.63 °C 10.90 °C 75.37 mm Max month (1993) 17.68 °C 11.34 °C 98.82 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 | 6.0 | 46.17 | 34th–35th/36 |
| Average length | 12.7 | 12.59 | 15th–18th/36 |
| Average width | 7.0 | 6.94 | 12th–17th/36 |
| Standard deviation of length | 0.47 | 0.75 | 34th/36 |
| Standard deviation of width | 0.24 | 0.35 | 32nd–33rd/36 |
| Median length | 12.6 | 12.59 | 18th–19th/36 |
| Median width | 7.1 | 6.94 | 9th–12th/36 |
| Minimum length | 12.2 | 11.06 | 3rd–5th/36 |
| Minimum width | 6.7 | 6.20 | 3rd–4th/36 |
| Low length | 12.2 | 11.48 | 6th/36 |
| Low width | 6.7 | 6.46 | 5th–10th/36 |
| High length | 13.3 | 13.70 | 24th–26th/36 |
| High width | 7.3 | 7.48 | 20th–27th/36 |
| Max length | 13.5 | 14.33 | 25th–26th/36 |
| Max width | 7.4 | 7.72 | 24th–31st/36 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 100% of collections |
| Perispore loosening | P3 | 65% of collections |
| Dextrinoidity | D3 | 84% of collections |