Taxonomy
Collection 16980 is Hebeloma excedens.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 16980 was collected by L. Davies, H.J. Beker on 11th September 2017 in M95, near The Basin, Michigan, UNITED STATES (46.4121°N, 87.9932°W, altitude approximately 480 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genus Betula) and Pinaceae (genus Pinus) were present.
The surrounding habitat was described as mixed woodland roadside carpark with a substrate of grassy 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. 1.4: Forest – Temperate.
According to the GPS data the collection was in the Western 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 Dfb (Cold, no dry season, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: yes.
Pileus: 13–19 mm diameter; shape umbonate; margin characters overhanging pileus, smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre ochraceous; and colour at margin cream; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 3 mm; number of complete lamellae 48; tears absent; white fimbriate edge not recorded.
Stipe: 20–30 x 3–5 {median} x 3–5 {basal} mm; stipe Q 6.0–6.7; base cylindrical; floccosity fibrillose; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base no; slenderness measure 9.9; 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 ellipsoid, ovoid; colour through microscope grey yellow, yellow pale; guttulate no; papillate no; Spore Code: O1; P0; D0.
Basidia: 25.6–30.6 x 8.2–8.9 μm; ave. Q = 3.2; basidia spore nature not recorded.
Cheilocystidia: main shape lageniform, ventricose; special features septa; Cheilocystidia Ratios: A/M = 1.03; A/B = 0.74; B/M = 1.44.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 120 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical up to 11 μm wide.
Caulocystidia: caulocystidia maximum length 85 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (7.5) 7.9–10.5 (10.9) 9.0 8.9 0.760 Width (µm) (5.1) 5.2–6.2 (6.3) 5.6 5.6 0.300 Q (1.34) 1.49–1.77 (1.79) 1.61 1.61 0.09 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (31) 33–49 (50) 41 41 5.21 Apex Width (3.9) 4.2–6.0 (6.1) 5.0 5.0 0.640 Median Width (3.8) 4.5–5.4 (5.7) 4.9 4.8 0.39 Basal Width (4.7) 5.7–9.1 (9.3) 7.0 6.7 1.23
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2017) 10.84 °C -0.67 °C 81.99 mm Collection month (9/2017) 21.90 °C 8.33 °C 56.15 mm Max month (2017) 24.96 °C 11.41 °C 149.87 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 | 59.0 | 68.23 | 27th–28th/52 |
| Average length | 9.0 | 9.33 | 37th–39th/52 |
| Average width | 5.6 | 5.68 | 30th–36th/52 |
| Standard deviation of length | 0.76 | 0.71 | 19th–20th/52 |
| Standard deviation of width | 0.3 | 0.36 | 38th–40th/52 |
| Median length | 8.9 | 9.35 | 40th–43rd/52 |
| Median width | 5.6 | 5.69 | 30th–36th/52 |
| Minimum length | 7.5 | 7.67 | 31st–34th/52 |
| Minimum width | 5.1 | 4.81 | 15th–17th/52 |
| Low length | 7.9 | 8.15 | 33rd–34th/52 |
| Low width | 5.2 | 5.16 | 22nd–28th/52 |
| High length | 10.5 | 10.41 | 23rd–25th/52 |
| High width | 6.2 | 6.25 | 30th–34th/52 |
| Max length | 10.9 | 10.78 | 18th–23rd/52 |
| Max width | 6.3 | 6.53 | 44th–47th/52 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1 | 100% of collections |
| Perispore loosening | P0 | 100% of collections |
| Dextrinoidity | D0 | 94% of collections |