Taxonomy
Collection 1000474 (herbarium acc. no. MICH 5560) is the holotype of Hebeloma pungens.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000474 was collected by A.H. Smith (24293) on 8th October 1946 in Frog Lake, Mt Hood National Forest, Wasco County, Oregon, UNITED STATES (approx. 45.2195°N, 121.6938°W, altitude approximately 1180 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Pinus) was present.
The surrounding habitat was described as not recorded with a substrate of soil.
According to the GPS data the collection was in the Central-Southern Cascades 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 Dsb (Cold, dry summer, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 30–60 mm diameter; shape convex; margin characters fibrillose, involute; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation unicolor; with colour at centre brownish olive; and colour at margin not recorded; with remains of universal veil yes.
Lamellae: attachment adnexed; maximum depth not recorded; number of complete lamellae 68; tears absent; white fimbriate edge present.
Stipe: 40–60 x 5–12 {median} x 10–13 {basal} mm; stipe Q 5.0; base clavate, cylindrical; floccosity fibrillose, floccose, pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base no; slenderness measure 6.3; smell raphanoid; taste none.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope yellow; guttulate no; papillate yes; Spore Code: O2; P1; P2; D3.
Basidia: 27.3–31.7 x 6.0–6.7 μm; ave. Q = 4.6; basidia spore nature not recorded.
Cheilocystidia: main shape capitate-stipitate, clavate, clavate-stipitate, clavate-lageniform or clavate-ventricose, utriform, ventricose; special features apical thickening, branching, clamped septa, irregular, septa; Cheilocystidia Ratios: A/M = 1.68; A/B = 1.63; B/M = 1.14.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 120 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis ellipsoid, thickly sausage-shaped up to 20 μm wide.
Caulocystidia: caulocystidia maximum length 100 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (9.1) 9.5–12.0 (12.8) 10.5 10.5 0.760 Width (µm) (5.2) 5.4–6.3 (7.4) 5.8 5.8 0.380 Q (1.60) 1.68–1.95 (2.07) 1.81 1.81 0.09 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (27) 32–53 (55) 40 39 6.7 Apex Width (4.0) 4.7–8.4 (10.4) 6.6 6.7 1.290 Median Width (1.8) 3.0–6.7 (7.0) 4.7 4.6 1.23 Basal Width (2.9) 3.2–6.9 (8.6) 4.9 4.8 1.4
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1946) --- °C --- °C --- mm Collection month (10/1946) --- °C --- °C --- mm Max month (1946) --- °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 | 55.0 | 55.00 | 1st–2nd/2 |
| Average length | 10.5 | 10.75 | 2nd/2 |
| Average width | 5.8 | 5.70 | 1st/2 |
| Standard deviation of length | 0.76 | 0.61 | 1st/2 |
| Standard deviation of width | 0.38 | 0.29 | 1st/2 |
| Median length | 10.5 | 10.80 | 2nd/2 |
| Median width | 5.8 | 5.70 | 1st/2 |
| Minimum length | 9.1 | 9.50 | 2nd/2 |
| Minimum width | 5.2 | 5.20 | 1st–2nd/2 |
| Low length | 9.5 | 9.95 | 2nd/2 |
| Low width | 5.4 | 5.30 | 1st/2 |
| High length | 12.0 | 11.90 | 1st/2 |
| High width | 6.3 | 6.10 | 1st/2 |
| Max length | 12.8 | 12.35 | 1st/2 |
| Max width | 7.4 | 6.70 | 1st/2 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2 | 50% of collections |
| Perispore loosening | P1; P2 | 100% of collections; 50% of collections |
| Dextrinoidity | D3 | 100% of collections |