Taxonomy
Collection 1000322 (herbarium acc. no. MICH 10722) is the holotype of Hebeloma avellaneum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000322 was collected by C.H. Kauffman on 8th November 1925 in Grays Harbor, Lake Quinault, Olympic National Park, Washington, UNITED STATES (approx. 47.4742°N, 123.8667°W, altitude approximately 75 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as woodland bog edge with a substrate of mossy 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. 5.4: Wetlands (inland) – Bogs, marshes, swamps, fens, peatlands.
According to the GPS data the collection was in the Central Pacific Northwest coastal 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 Conifer Forests) and Koppen climate code Cfb (Temperate, no dry season, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 30–90 mm diameter; shape umbonate broadly; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation two-colour; with colour at centre umber; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment decurrent tooth, emarginate; maximum depth not recorded; number of complete lamellae 80; tears not recorded; white fimbriate edge present.
Stipe: 50–100 x 6–12 {median} x 10–20 {basal} mm; stipe Q 8.3; base bulbous; floccosity floccose, floccose at apex; rooting not recorded; mycelial chords not recorded.
Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base not recorded; slenderness measure 11.6; smell none; taste bitter, mild.
Spore deposit colour: analysis not yet complete.
Exsiccata: fragile, shiny.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope not recorded; guttulate not recorded; papillate yes; Spore Code: O1; O2; P1; D3.
Basidia: 27.8–36.4 x 6.5–7.5 μm; ave. Q = 4.6; basidia spore nature not recorded.
Cheilocystidia: main shape balloon-shaped, capitate-stipitate, gently clavate, cylindrical, clavate-lageniform or clavate-ventricose, ventricose; special features bifurcate, grotesque, irregular, septa; Cheilocystidia Ratios: A/M = 1.62; A/B = 1.84; B/M = 0.93.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 80 μm; ixocutis maximum hyphae width 8 μm; ixocutis hyphae encrustation not recorded; shape of trama elements beneath subcutis angular, circular, cylindrical, ellipsoid, hyphae thick, hyphae thin, isodiametric, oblong, ovate, polygonal, pyriform, thickly sausage-shaped, thinly sausage-shaped, spherical, undefined, utriform up to 14 μm wide.
Caulocystidia: caulocystidia maximum length 80 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (7.3) 7.5–9.3 (9.7) 8.4 8.3 0.550 Width (µm) (4.3) 4.5–5.6 (5.7) 5.0 5.1 0.300 Q (1.41) 1.48–1.87 (1.92) 1.67 1.68 0.12 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (29) 32–54 (65) 44 41 9.4 Apex Width (3.7) 4.3–10.4 (11.9) 7.7 7.7 1.650 Median Width (1.9) 3.8–8.3 (8.9) 6.1 6.6 1.86 Basal Width (2.0) 2.5–9.3 (9.4) 5.5 5.4 2.02
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1925) --- °C --- °C --- mm Collection month (11/1925) --- °C --- °C --- mm Max month (1925) --- °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 | 62.0 | 65.36 | 6th–7th/14 |
| Average length | 8.4 | 9.30 | 14th/14 |
| Average width | 5.0 | 5.19 | 12th–14th/14 |
| Standard deviation of length | 0.55 | 0.66 | 12th–13th/14 |
| Standard deviation of width | 0.3 | 0.31 | 6th–9th/14 |
| Median length | 8.3 | 9.30 | 14th/14 |
| Median width | 5.1 | 5.19 | 9th–12th/14 |
| Minimum length | 7.3 | 7.69 | 14th/14 |
| Minimum width | 4.3 | 4.48 | 8th–11th/14 |
| Low length | 7.5 | 8.29 | 14th/14 |
| Low width | 4.5 | 4.72 | 10th–12th/14 |
| High length | 9.3 | 10.37 | 14th/14 |
| High width | 5.6 | 5.69 | 8th–10th/14 |
| Max length | 9.7 | 10.76 | 14th/14 |
| Max width | 5.7 | 5.98 | 12th–13th/14 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1; O2 | 50% of collections; 100% of collections |
| Perispore loosening | P1 | 100% of collections |
| Dextrinoidity | D3 | 100% of collections |