Taxonomy
Collection 1000301 (herbarium acc. no. MICH 10725) is Hebeloma colvinii. It is the holotype of heterotypic synonym Hebeloma affine A.H. Sm., V.S. Evenson & Mitchel (1983).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000301 was collected by A.H. Smith (42918) on 21st September 1953 in Emmet County, Wilderness Point, Wilderness State Park, Michigan, UNITED STATES (approx. 45.7506°N, 84.8628°W, altitude approximately 180 m above sea level - Google maps). The ectomycorrhizal family Ericaceae (genus Arctostaphylos) was present.
The surrounding habitat was described as dune with a substrate of 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. 13.3: Coastal Sand Dunes.
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: 15–30 mm diameter; shape convex; margin characters appendiculate; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.
Lamellae: attachment adnexed, emarginate; maximum depth not recorded; number of complete lamellae 30; tears not recorded; white fimbriate edge weak.
Stipe: 30–50 x 3–5 {median} x 3–5 {basal} mm; stipe Q 10.0; base cylindrical, sand bulb; floccosity fibrillose; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base yes; slenderness measure 18.3; smell none; taste mild.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape ellipsoid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O1; P0; D1.
Basidia: 26.1–47.4 x 8.7–11.6 μm; ave. Q = 3.5; basidia spore nature not recorded.
Cheilocystidia: main shape balloon-shaped, cylindrical, clavate-lageniform or clavate-ventricose, lageniform, utriform, ventricose; special features irregular, large, many collapsed in exsiccata, thick content in neck, uniform; Cheilocystidia Ratios: A/M = 0.96; A/B = 0.55; B/M = 1.90.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.9) 12.2–14.6 (14.7) 13.2 13.1 0.840 Width (µm) (6.9) 7.2–8.5 (8.6) 7.8 7.7 0.430 Q (1.37) 1.57–1.82 (1.90) 1.70 1.70 0.09 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (24) 42–65 52 52 9.44 Apex Width (3.8) 4.3–11.4 (12.8) 7.9 7.8 2.110 Median Width (4.6) 5.5–13.2 (13.7) 8.1 6.6 3.09 Basal Width 8.8–18.3 (21.5) 14.0 14.0 3.29
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1953) --- °C --- °C --- mm Collection month (9/1953) --- °C --- °C --- mm Max month (1953) --- °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 | 48.0 | 52.92 | 9th/12 |
| Average length | 13.2 | 12.79 | 3rd/12 |
| Average width | 7.8 | 7.78 | 4th–5th/12 |
| Standard deviation of length | 0.84 | 1.01 | 9th/12 |
| Standard deviation of width | 0.43 | 0.50 | 9th/12 |
| Median length | 13.1 | 12.77 | 4th–5th/12 |
| Median width | 7.7 | 7.75 | 4th–9th/12 |
| Minimum length | 10.9 | 10.79 | 6th/12 |
| Minimum width | 6.9 | 6.68 | 4th–5th/12 |
| Low length | 12.2 | 11.24 | 2nd–3rd/12 |
| Low width | 7.2 | 7.01 | 3rd–4th/12 |
| High length | 14.6 | 14.46 | 5th–6th/12 |
| High width | 8.5 | 8.59 | 8th/12 |
| Max length | 14.7 | 15.15 | 9th–10th/12 |
| Max width | 8.6 | 8.91 | 7th–8th/12 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1 | 100% of collections |
| Perispore loosening | P0 | 100% of collections |
| Dextrinoidity | D1 | 100% of collections |