Taxonomy
Collection 16251 (herbarium acc. no. TNS-F-75705) is the holotype of Hebeloma asperosporum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 16251 was collected by K. Hosaka (JPN15-1538) on 17th November 2015 in Amami-Oshima Island, Amami Forest Polis Park, Naon,Yamato son,Oshima gun, Kagoshima, JAPAN (approx. 28.3161°N, 129.3448°E, altitude approximately 215 m above sea level - Google maps). The ectomycorrhizal families Pinaceae (genus Pinus) and Fagaceae (genera Quercus and Castanopsis) were present.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the Nansei Islands subtropical evergreen 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: Tropical & Subtropical Moist Broadleaf Forests) and Koppen climate code Cfa (Temperate, no dry season, hot summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 21–35 mm diameter; shape convex, umbonate; margin characters crenulate; viscosity tacky when moist; spotting yes; hygrophanous not recorded; colour variation unicolor; with colour at centre honey, dark pinkish buff; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 72; tears visible with x10 lens; white fimbriate edge present.
Stipe: 26–36 x 5–6 {median} x 6–8 {basal} mm; stipe Q 4.7–5.5; base clavate; floccosity fibrillose, pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 5.8; smell not recorded; taste not recorded.
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 brown; guttulate yes; papillate very strongly; Spore Code: O3; O4; P3; D0.
Basidia: 25.2–30.7 x 6.7–8.5 μm; ave. Q = 3.6; basidia spore nature not recorded.
Cheilocystidia: main shape capitate-stipitate, clavate-lageniform or clavate-ventricose; special features clamped septa, median thickening; Cheilocystidia Ratios: A/M = 1.79; A/B = 1.30; B/M = 1.41.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 150 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis not recorded up to 14 μm wide.
Caulocystidia: caulocystidia maximum length 110 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (8.3) 9.0–10.8 (10.9) 9.6 9.5 0.600 Width (µm) 5.4–6.6 (6.7) 5.9 5.9 0.350 Q (1.50) 1.53–1.77 (1.85) 1.62 1.60 0.08 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length 35–51 (65) 44 44 7.0 Apex Width (3.8) 5.3–9.2 (9.5) 7.4 7.5 1.280 Median Width (3.4) 3.5–4.8 4.3 4.4 0.46 Basal Width (4.4) 4.5–7.4 (8.0) 6.0 6.0 1.01
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2015) 23.51 °C 17.97 °C 197.86 mm Collection month (11/2015) 23.29 °C 17.96 °C 160.96 mm Max month (2015) 29.94 °C 24.33 °C 483.98 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 | 45.0 | 48.00 | 2nd/2 |
| Average length | 9.6 | 9.80 | 2nd/2 |
| Average width | 5.9 | 6.05 | 2nd/2 |
| Standard deviation of length | 0.6 | 0.56 | 1st/2 |
| Standard deviation of width | 0.35 | 0.33 | 1st/2 |
| Median length | 9.5 | 9.80 | 2nd/2 |
| Median width | 5.9 | 6.10 | 2nd/2 |
| Minimum length | 8.3 | 8.40 | 2nd/2 |
| Minimum width | 5.4 | 5.40 | 1st–2nd/2 |
| Low length | 9.0 | 9.05 | 2nd/2 |
| Low width | 5.4 | 5.55 | 2nd/2 |
| High length | 10.8 | 10.80 | 1st–2nd/2 |
| High width | 6.6 | 6.65 | 2nd/2 |
| Max length | 10.9 | 10.95 | 2nd/2 |
| Max width | 6.7 | 6.70 | 1st–2nd/2 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3; O4 | 100% of collections; 100% of collections |
| Perispore loosening | P3 | 100% of collections |
| Dextrinoidity | D0 | 100% of collections |