Taxonomy
Collection 1000493 (herbarium acc. no. MICH 10815) is Hebeloma discomorbidum. It is the holotype of heterotypic synonym Hebeloma utahense A.H. Sm., V.S. Evenson & Mitchel (1983).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000493 was collected by K.H. McKnight (F1448), det: A.H. Smith on 13th August 1956 in Black's Fork, Summit County, Utah, UNITED STATES (approx. 41.2753°N, 109.5625°W, altitude approximately 1860 m above sea level - Google maps). The ectomycorrhizal families Pinaceae (genus Pinus) and Salicaceae (genus Salix) were present.
The surrounding habitat was described as not recorded with a substrate of soil.
According to the GPS data the collection was in the Wyoming Basin shrub steppe 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: Deserts & Xeric Shrublands) and Koppen climate code BSk (Arid, steppe, cold).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: yes.
Pileus: 12–28 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre brownish olive; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment adnexed; maximum depth not recorded; number of complete lamellae 42; tears absent; white fimbriate edge not recorded.
Stipe: 20–30 x 2–4 {median} x 2–4 {basal} mm; stipe Q 7.5–10.0; base cylindrical; floccosity fibrillose; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 12.4; smell not recorded; 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 not recorded; guttulate not recorded; papillate yes; Spore Code: O2; P0; D2; D3.
Basidia: 28.1–32.4 x 8.4–9.1 μm; ave. Q = 3.4; basidia spore nature not recorded.
Cheilocystidia: main shape lageniform, ventricose; special features many collapsed in exsiccata; Cheilocystidia Ratios: A/M = 1.15; A/B = 0.61; B/M = 1.97.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.0) 10.7–13.7 (14.9) 12.4 12.5 0.930 Width (µm) (6.6) 6.7–7.8 (7.9) 7.2 7.2 0.340 Q (1.45) 1.53–1.87 (1.92) 1.72 1.73 0.11 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (28) 29–62 (66) 42 40 9.21 Apex Width 4.6–7.2 (7.4) 5.6 5.5 0.920 Median Width (3.6) 3.8–6.8 (7.0) 5.1 5.0 1.19 Basal Width (7.3) 7.6–12.4 (12.8) 9.5 9.2 1.74
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1956) --- °C --- °C --- mm Collection month (8/1956) --- °C --- °C --- mm Max month (1956) --- °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 | 60.0 | 43.34 | 25th–27th/99 |
| Average length | 12.4 | 11.86 | 22nd–24th/100 |
| Average width | 7.2 | 6.83 | 12th–27th/100 |
| Standard deviation of length | 0.93 | 0.80 | 22nd–24th/99 |
| Standard deviation of width | 0.34 | 0.39 | 70th–72nd/99 |
| Median length | 12.5 | 11.83 | 17th–19th/99 |
| Median width | 7.2 | 6.82 | 13th–28th/99 |
| Minimum length | 10.0 | 10.21 | 64th–71st/100 |
| Minimum width | 6.6 | 5.99 | 3rd–9th/100 |
| Low length | 10.7 | 10.66 | 45th–50th/100 |
| Low width | 6.7 | 6.24 | 6th–17th/100 |
| High length | 13.7 | 13.06 | 25th/100 |
| High width | 7.8 | 7.41 | 22nd–28th/100 |
| Max length | 14.9 | 13.54 | 13th–16th/100 |
| Max width | 7.9 | 7.66 | 39th–43rd/100 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2 | 92% of collections |
| Perispore loosening | P0 | 72% of collections |
| Dextrinoidity | D2; D3 | 58% of collections; 83% of collections |