Taxonomy
Collection 17777 (MUOB 302183) is Hebeloma albomarginatum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 17777 was collected by D. Grootmyers on 16th September 2017 in Mohican State Park, Perrysville, Ashland Co., Ohio, UNITED STATES (40.6141°N, 82.3181°W, altitude approximately 255 m above sea level - Google maps). The ectomycorrhizal families Fagaceae (genera Fagus and Quercus) and Pinaceae (genera Pinus and Tsuga) were present.
The surrounding habitat was described as woodland riverside with a substrate of mossy soil and litter, 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. 1.4: Forest – Temperate.
According to the GPS data the collection was in the Southern Great Lakes 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: 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: 61–81 mm diameter; shape convex, umbonate; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre brick, cinnamon; and colour at margin pale cream; with remains of universal veil no.
Lamellae: attachment adnexed, emarginate; maximum depth not recorded; number of complete lamellae 91; tears not recorded; white fimbriate edge present.
Stipe: 40–63 x 14–20 {median} x 20–27 {basal} mm; stipe Q 2.9–3.2; base clavate, cylindrical; floccosity floccose, pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 2.1; smell raphanoid; 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 no; papillate very strongly; Spore Code: O4; P3; D4.
Basidia: 29.0–34.7 x 7.6–8.4 μm; ave. Q = 4.0; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, clavate-stipitate, clavate-lageniform or clavate-ventricose, ventricose; special features septa; Cheilocystidia Ratios: A/M = 1.47; A/B = 1.16; B/M = 1.32.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 140 μm; ixocutis maximum hyphae width 8 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis cylindrical, isodiametric up to 15 μm wide.
Caulocystidia: caulocystidia maximum length 100 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (9.6) 10.4–12.4 (13.8) 11.4 11.3 0.680 Width (µm) 6.6–7.8 (8.7) 7.1 7.0 0.420 Q (1.39) 1.44–1.76 (1.78) 1.62 1.62 0.1 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (32) 33–59 (61) 46 45 8.88 Apex Width (4.3) 5.3–8.8 (9.5) 7.0 7.0 1.160 Median Width (3.2) 3.3–4.9 (5.6) 4.3 4.4 0.58 Basal Width 4.6–7.0 (7.5) 5.6 5.4 0.9
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2017) 16.48 °C 5.20 °C 101.51 mm Collection month (9/2017) 25.23 °C 12.02 °C 55.33 mm Max month (2017) 27.71 °C 16.13 °C 156.18 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 | 64.0 | 78.55 | 14th–15th/20 |
| Average length | 11.4 | 11.77 | 13th–15th/20 |
| Average width | 7.1 | 7.46 | 15th–19th/20 |
| Standard deviation of length | 0.68 | 0.77 | 18th/20 |
| Standard deviation of width | 0.42 | 0.41 | 7th–8th/20 |
| Median length | 11.3 | 11.82 | 17th–18th/20 |
| Median width | 7.0 | 7.47 | 19th/20 |
| Minimum length | 9.6 | 9.96 | 14th–19th/20 |
| Minimum width | 6.6 | 6.38 | 7th/20 |
| Low length | 10.4 | 10.46 | 7th–8th/20 |
| Low width | 6.6 | 6.79 | 12th–13th/20 |
| High length | 12.4 | 12.91 | 18th–19th/20 |
| High width | 7.8 | 8.11 | 16th–17th/20 |
| Max length | 13.8 | 13.53 | 6th/20 |
| Max width | 8.7 | 8.35 | 1st/20 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O4 | 100% of collections |
| Perispore loosening | P3 | 85% of collections |
| Dextrinoidity | D4 | 100% of collections |