Taxonomy
Collection 15989 (herbarium acc. no. MIN 890946) is Hebeloma albomarginatum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 15989 was collected by B.T. Dentinger (315) on 29th September 2004 in Hennepin, Minneapolis, Mississippi Gorge Regional Park, 36th Street and W. River Road, Minnesota, UNITED STATES (approx. 44.9376°N, 93.2037°W, altitude approximately 250 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Quercus) was present.
The surrounding habitat was described as savanna with a substrate of 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. 2.1: Savanna - Dry.
According to the GPS data the collection was in the Upper Midwest US forest-savanna transition 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 Dfa (Cold, no dry season, hot summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: analysis not yet complete.
Lamellae: attachment not recorded; maximum depth not recorded; number of complete lamellae 90; tears not recorded; white fimbriate edge not recorded.
Stipe: analysis not yet complete.
Context: analysis not yet complete.
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 no; papillate very strongly; Spore Code: O3; O4; P2; D3; D4.
Basidia: 30.6–37.4 x 8.0–9.3 μm; ave. Q = 3.9; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, clavate-stipitate, clavate-lageniform or clavate-ventricose; special features bifurcate; Cheilocystidia Ratios: A/M = 1.86; A/B = 1.58; B/M = 1.24.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.6) 11.0–13.4 (13.7) 12.1 12.1 0.720 Width (µm) (6.7) 7.2–8.3 (8.5) 7.8 7.8 0.330 Q (1.39) 1.43–1.71 (1.77) 1.56 1.55 0.08 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (34) 40–67 (71) 55 55 9.14 Apex Width (4.8) 5.7–7.3 (7.4) 6.6 6.6 0.630 Median Width (2.5) 2.6–4.4 (4.5) 3.6 3.6 0.55 Basal Width (2.5) 3.2–6.0 (6.3) 4.4 4.4 0.92
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2004) 13.02 °C 2.69 °C 65.59 mm Collection month (9/2004) 24.75 °C 13.43 °C 114.74 mm Max month (2004) 26.93 °C 16.51 °C 159.78 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 | 73.0 | 78.55 | 10th/20 |
| Average length | 12.1 | 11.77 | 6th/20 |
| Average width | 7.8 | 7.46 | 3rd–6th/20 |
| Standard deviation of length | 0.72 | 0.77 | 15th/20 |
| Standard deviation of width | 0.33 | 0.41 | 17th–18th/20 |
| Median length | 12.1 | 11.82 | 6th/20 |
| Median width | 7.8 | 7.47 | 3rd–7th/20 |
| Minimum length | 10.6 | 9.96 | 3rd/20 |
| Minimum width | 6.7 | 6.38 | 3rd–6th/20 |
| Low length | 11.0 | 10.46 | 4th/20 |
| Low width | 7.2 | 6.79 | 2nd–4th/20 |
| High length | 13.4 | 12.91 | 3rd–4th/20 |
| High width | 8.3 | 8.11 | 5th–10th/20 |
| Max length | 13.7 | 13.53 | 7th–8th/20 |
| Max width | 8.5 | 8.35 | 3rd–8th/20 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3; O4 | 50% of collections; 100% of collections |
| Perispore loosening | P2 | 65% of collections |
| Dextrinoidity | D3; D4 | 60% of collections; 100% of collections |