Taxonomy
Collection 19474 is Hebeloma subfastibile.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 19474 was collected by H.J. Beker, L. Davies on 14th December 2019 in Fish Creek, Louisiana, UNITED STATES (31.6449°N, 92.4482°W, altitude approximately 60 m above sea level - Google maps). The ectomycorrhizal families Pinaceae (genus Pinus) and Fagaceae (genus Fagus) were present.
The surrounding habitat was described as mixed parkland with a substrate of grassy, mossy, sandy 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 Piney Woods 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 Conifer Forests) and Koppen climate code Cfa (Temperate, no dry season, hot summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 32–36 mm diameter; shape umbonate weakly; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre clay-buff; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 5 mm; number of complete lamellae 64; tears absent; white fimbriate edge weak.
Stipe: 22–28 x 6–7 {median} x 6–9 {basal} mm; stipe Q 3.7–4.0; base clavate, cylindrical; floccosity floccose; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 2.8; smell raphanoid; taste not recorded.
Spore deposit colour: brownish olive.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, fusoid, navicular; colour through microscope yellow brown; guttulate yes; papillate no; Spore Code: O1; O2; P0; D2.
Basidia: 25.5–31.2 x 6.3–8.0 μm; ave. Q = 3.8; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, cylindrical, clavate-lageniform or clavate-ventricose; special features irregular, sparse; Cheilocystidia Ratios: A/M = 1.15; A/B = 1.36; B/M = 0.89.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 75 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis cylindrical up to 17 μm wide.
Caulocystidia: caulocystidia maximum length 70 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (8.7) 9.2–11.8 (11.9) 10.7 10.9 0.760 Width (µm) (4.3) 4.8–5.7 (5.9) 5.3 5.3 0.310 Q (1.54) 1.73–2.24 (2.28) 2.02 2.06 0.16 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (25) 27–42 (54) 34 32 6.69 Apex Width (4.8) 5.4–7.1 (7.6) 6.3 6.4 0.670 Median Width (4.6) 4.7–6.1 (6.6) 5.5 5.6 0.56 Basal Width (2.7) 3.3–7.5 (7.6) 4.9 4.6 1.34
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2019) 26.11 °C 13.49 °C 155.79 mm Collection month (12/2019) 17.95 °C 5.92 °C 109.13 mm Max month (2019) 35.41 °C 22.75 °C 308.40 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 | 61.0 | 62.25 | 3rd/4 |
| Average length | 10.7 | 10.78 | 2nd/4 |
| Average width | 5.3 | 5.35 | 2nd–3rd/4 |
| Standard deviation of length | 0.76 | 0.69 | 1st/4 |
| Standard deviation of width | 0.31 | 0.32 | 2nd/4 |
| Median length | 10.9 | 10.80 | 2nd/4 |
| Median width | 5.3 | 5.30 | 2nd/4 |
| Minimum length | 8.7 | 9.22 | 4th/4 |
| Minimum width | 4.3 | 4.60 | 4th/4 |
| Low length | 9.2 | 9.62 | 4th/4 |
| Low width | 4.8 | 4.85 | 2nd/4 |
| High length | 11.8 | 11.75 | 2nd/4 |
| High width | 5.7 | 5.90 | 3rd/4 |
| Max length | 11.9 | 12.47 | 4th/4 |
| Max width | 5.9 | 6.05 | 3rd/4 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1; O2 | 100% of collections; 50% of collections |
| Perispore loosening | P0 | 100% of collections |
| Dextrinoidity | D2 | 100% of collections |