Taxonomy
Collection 1000069 (herbarium acc. no. IB19810313) is Hebeloma eburneum. It is the holotype of heterotypic synonym Hebeloma albocolossum M.M. Moser (1986) ["1985"].Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000069 was collected by M. Moser on 25th August 1981 in North shore of Tornetrask, Norbotten, SWEDEN (approx. 66.943°N, 19.81°E, altitude approximately 420 m above sea level - Google maps). The ectomycorrhizal family Betulaceae (genus Betula) was present.
The surrounding habitat was described as boreal shrubland, 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. 3.3: Shrubland – Boreal.
According to the GPS data the collection was in the Scandinavian and Russian taiga 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: Boreal Forests/Taiga) and Koppen climate code Dfc (Cold, no dry season, cold summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 87–133 mm diameter; shape convex, umbonate broadly; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment not recorded; maximum depth up to 9 mm; number of complete lamellae 96; tears visible with naked eye; white fimbriate edge present.
Stipe: 94–106 x 20–36 {median} x 21–33 {basal} mm; stipe Q 2.9–4.5; base cylindrical, tapering; floccosity not recorded; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base yes; slenderness measure 3.6; smell none; taste mild.
Spore deposit colour: analysis not yet complete.
Exsiccata: normal.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O2; O3; P0; P1; D1.
Basidia: 24.7–28.6 x 8.0–11.7 μm; ave. Q = 2.9; basidia spore nature not recorded.
Cheilocystidia: main shape capitate, capitate-stipitate, clavate-stipitate; special features none; Cheilocystidia Ratios: A/M = 2.43; A/B = 2.29; B/M = 1.09.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.3) 10.7–13.0 (13.8) 11.8 11.7 0.720 Width (µm) (5.8) 6.0–6.7 (6.9) 6.4 6.4 0.230 Q (1.59) 1.72–2.06 (2.17) 1.85 1.84 0.11 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (34) 36–57 (59) 45 44 6.96 Apex Width (5.7) 7.2–11.3 (12.4) 9.2 9.2 1.300 Median Width (2.9) 3.2–4.7 (4.9) 4.1 4.2 0.53 Basal Width (3.1) 3.2–5.3 (5.6) 4.4 4.3 0.64
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1981) 1.99 °C -7.06 °C 55.49 mm Collection month (8/1981) 14.27 °C 6.42 °C 81.02 mm Max month (1981) 16.80 °C 8.59 °C 178.64 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 | 60.0 | 51.46 | 21st–22nd/90 |
| Average length | 11.8 | 11.78 | 41st–49th/92 |
| Average width | 6.4 | 6.54 | 57th–65th/92 |
| Standard deviation of length | 0.72 | 0.74 | 52nd–55th/90 |
| Standard deviation of width | 0.23 | 0.37 | 85th–86th/90 |
| Median length | 11.7 | 11.80 | 46th–55th/90 |
| Median width | 6.4 | 6.54 | 54th–64th/90 |
| Minimum length | 10.3 | 10.23 | 33rd–41st/92 |
| Minimum width | 5.8 | 5.78 | 34th–44th/92 |
| Low length | 10.7 | 10.67 | 40th–50th/92 |
| Low width | 6.0 | 5.99 | 35th–46th/92 |
| High length | 13.0 | 12.89 | 41st–45th/92 |
| High width | 6.7 | 7.12 | 77th–79th/92 |
| Max length | 13.8 | 13.47 | 34th–39th/92 |
| Max width | 6.9 | 7.43 | 74th–80th/92 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2; O3 | 39% of collections; 88% of collections |
| Perispore loosening | P0; P1 | 31% of collections; 93% of collections |
| Dextrinoidity | D1 | 81% of collections |