Taxonomy
Collection 1000284 (herbarium acc. no. NY 814869) is Hebeloma mesophaeum. It is the holotype of heterotypic synonym Hebeloma lateritium Murrill (1917).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000284 was collected by W.A. Murrill (295) on 20th October 1911 in near Seattle, Washington, UNITED STATES (approx. 47.5359°N, 122.1204°W, altitude approximately 300 m above sea level - Google maps). The ectomycorrhizal families Pinaceae (genera Pseudotsuga, Abies and Tsuga) and Betulaceae (genus Alnus) were present.
The surrounding habitat was described as woodland edge 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. 1.4: Forest – Temperate.
According to the GPS data the collection was in the Puget lowland 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 Csb (Temperate, dry summer, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: yes.
Pileus: up to 50 mm diameter; shape convex, umbonate; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous yes; colour variation two-colour; with colour at centre umber; and colour at margin cream; with remains of universal veil not recorded.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 40; tears not recorded; white fimbriate edge not recorded.
Stipe: 60 x 7 {median} x 10 {basal} mm; stipe Q 8.6; base clavate; floccosity fibrillose; rooting not recorded; mycelial chords not recorded.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base not recorded; slenderness measure 10.3; 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 ellipsoid; colour through microscope yellow; guttulate not recorded; papillate no; Spore Code: O1; P0; D0.
Basidia: 21.3–28.1 x 5.4–7.4 μm; ave. Q = 3.8; basidia spore nature not recorded.
Cheilocystidia: main shape lageniform, ventricose; special features many collapsed in exsiccata; Cheilocystidia Ratios: A/M = 0.92; A/B = 0.47; B/M = 1.99.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 220 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis ellipsoid, thickly sausage-shaped up to 15 μm wide.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (6.1) 6.2–8.2 (8.6) 7.3 7.3 0.590 Width (µm) (4.5) 4.7–5.5 (5.9) 5.0 5.1 0.300 Q 1.30–1.57 (1.60) 1.45 1.45 0.08 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (29) 32–52 (67) 43 43 8.68 Apex Width (2.9) 3.5–5.8 (7.0) 4.7 4.7 0.720 Median Width 3.3–6.2 (6.9) 5.1 5.3 0.99 Basal Width (7.2) 8.4–11.9 (13.4) 9.8 9.7 1.42
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1911) --- °C --- °C --- mm Collection month (10/1911) --- °C --- °C --- mm Max month (1911) --- °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 | 45.0 | 65.23 | 93rd–94th/115 |
| Average length | 7.3 | 9.24 | 118th/118 |
| Average width | 5.0 | 5.58 | 109th–113rd/118 |
| Standard deviation of length | 0.59 | 0.61 | 51st–54th/110 |
| Standard deviation of width | 0.3 | 0.32 | 57th–68th/110 |
| Median length | 7.3 | 9.25 | 110th/110 |
| Median width | 5.1 | 5.60 | 99th–101st/110 |
| Minimum length | 6.1 | 7.89 | 112nd/112 |
| Minimum width | 4.5 | 4.89 | 91st–96th/112 |
| Low length | 6.2 | 8.33 | 112nd/112 |
| Low width | 4.7 | 5.13 | 94th–101st/112 |
| High length | 8.2 | 10.20 | 111st–112nd/112 |
| High width | 5.5 | 6.11 | 104th–107th/112 |
| Max length | 8.6 | 10.67 | 110th–111st/112 |
| Max width | 5.9 | 6.38 | 94th–98th/112 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O1 | 99% of collections |
| Perispore loosening | P0 | 99% of collections |
| Dextrinoidity | D0 | 87% of collections |