Taxonomy
Collection 1000319 (herbarium acc. no. FLAS-F-20151) is Hebeloma sordidulum. It is the holotype of heterotypic synonym Hebeloma atrifulvifolium Murrill (1946) ["1945"].Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000319 was collected by G.F. Weber, det: W.A. Murrill on 24th January 1944 in Alachua, Gainesville, shaded alley in Weber's yard, Florida, UNITED STATES (approx. 29.675°N, 82.3417°W, altitude approximately 50 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Quercus) was present.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the Southeast US conifer savannas 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 Grasslands, Savannas & Shrublands) and Koppen climate code Cfa (Temperate, no dry season, hot summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 30–40 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation two-colour; with colour at centre yellowish brown; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment emarginate; maximum depth up to 10 mm; number of complete lamellae 70; tears not recorded; white fimbriate edge weak.
Stipe: 40–60 x 6–10 {median} x 6–10 {basal} mm; stipe Q 6.0–6.7; base tapering; floccosity fibrillose; rooting no; mycelial chords not recorded.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base weak; slenderness measure 8.9; smell none; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, fusoid, limoniform; colour through microscope yellow brown; guttulate no; papillate very strongly; Spore Code: O3; P1; D2.
Basidia: 24.5–29.4 x 5.9–7.9 μm; ave. Q = 3.9; basidia spore nature not recorded.
Cheilocystidia: main shape clavate-stipitate, clavate-lageniform or clavate-ventricose; special features many collapsed in exsiccata, median thickening, septa; Cheilocystidia Ratios: A/M = 1.73; A/B = 1.03; B/M = 1.77.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 100 μm; ixocutis maximum hyphae width 6 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) (10.4) 10.9–14.0 (15.3) 12.6 12.7 0.990 Width (µm) (5.5) 5.7–7.2 (7.5) 6.3 6.3 0.430 Q (1.71) 1.78–2.20 (2.32) 2.00 1.99 0.13 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length 33–66 (73) 45 42 11.15 Apex Width (6.0) 6.1–8.9 (9.0) 7.1 6.8 0.940 Median Width (3.0) 3.1–5.2 (6.2) 4.3 4.1 0.84 Basal Width (4.5) 4.6–9.7 (9.8) 7.3 7.0 1.61
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1944) --- °C --- °C --- mm Collection month (1/1944) --- °C --- °C --- mm Max month (1944) --- °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 | 77.0 | 58.85 | 10th–11th/47 |
| Average length | 12.6 | 11.68 | 2nd–3rd/47 |
| Average width | 6.3 | 6.31 | 23rd–27th/47 |
| Standard deviation of length | 0.99 | 0.79 | 8th–9th/47 |
| Standard deviation of width | 0.43 | 0.37 | 12th–14th/47 |
| Median length | 12.7 | 11.67 | 2nd–5th/47 |
| Median width | 6.3 | 6.32 | 23rd–28th/47 |
| Minimum length | 10.4 | 9.97 | 6th–9th/47 |
| Minimum width | 5.5 | 5.42 | 22nd–26th/47 |
| Low length | 10.9 | 10.47 | 5th–7th/47 |
| Low width | 5.7 | 5.76 | 25th–30th/47 |
| High length | 14.0 | 12.91 | 1st/47 |
| High width | 7.2 | 6.88 | 6th–8th/47 |
| Max length | 15.3 | 13.47 | 1st/47 |
| Max width | 7.5 | 7.12 | 5th–10th/47 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 82% of collections |
| Perispore loosening | P1 | 93% of collections |
| Dextrinoidity | D2 | 100% of collections |