Taxonomy
Collection 11592 (herbarium acc. no. IB19920061) is the holotype of Hebeloma melleum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 11592 was collected by M. Moser on 18th July 1992 in Maria Waldrast,Tirol, Matrei, Maria Waldrast, AUSTRIA (approx. 47.13°N, 11.4°E, altitude approximately 1750 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genera Larix and Picea) was present.
The surrounding habitat was described as subalpine woodland, 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. 1.1: Forest – Boreal.
According to the GPS data the collection was in the Alps conifer and mixed 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 Dfc (Cold, no dry season, cold summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 11–16 mm diameter; shape convex, umbonate broadly; margin characters crenulate; viscosity tacky when moist; spotting yes; hygrophanous no; colour variation unicolor; with colour at centre honey, ochraceous; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment adnexed, emarginate; maximum depth up to 5 mm; number of complete lamellae 35; tears absent; white fimbriate edge present.
Stipe: 18–36 x 2–3 {median} x 2–4 {basal} mm; stipe Q 7.6–16.5; base cylindrical; floccosity floccose at apex, floccose weak; rooting weak; mycelial chords no.
Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base weak; slenderness measure 20.6; smell not recorded; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: shiny.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope brown yellow; guttulate weak; papillate weak; Spore Code: O3; P1; P2; D3; D4.
Basidia: 20.2–25.7 x 4.9–6.7 μm; ave. Q = 3.7; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical; special features clamped septa, septa, short; Cheilocystidia Ratios: A/M = 1.06; A/B = 1.11; B/M = 0.98.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 50 μm; ixocutis maximum hyphae width 4 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis isodiametric, thinly sausage-shaped up to 18 μm wide.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (7.8) 8.3–9.9 (10.2) 9.1 9.1 0.500 Width (µm) (4.6) 4.7–5.8 (6.1) 5.3 5.4 0.330 Q (1.43) 1.56–1.93 (2.04) 1.72 1.72 0.11 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (17) 21–36 (38) 29 30 5.75 Apex Width (3.7) 4.2–6.6 (7.3) 5.3 5.3 0.720 Median Width (3.7) 4.0–5.8 4.9 5.1 0.58 Basal Width (3.7) 3.8–5.7 (6.1) 4.8 5.0 0.67
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1992) 9.03 °C 0.80 °C 89.70 mm Collection month (7/1992) 18.78 °C 9.00 °C 128.24 mm Max month (1992) 20.96 °C 10.58 °C 131.73 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 | 87.0 | 75.67 | 1st/3 |
| Average length | 9.1 | 9.33 | 3rd/3 |
| Average width | 5.3 | 5.60 | 3rd/3 |
| Standard deviation of length | 0.5 | 0.63 | 3rd/3 |
| Standard deviation of width | 0.33 | 0.38 | 3rd/3 |
| Median length | 9.1 | 9.43 | 3rd/3 |
| Median width | 5.4 | 5.70 | 3rd/3 |
| Minimum length | 7.8 | 7.83 | 2nd/3 |
| Minimum width | 4.6 | 4.40 | 2nd/3 |
| Low length | 8.3 | 8.20 | 2nd/3 |
| Low width | 4.7 | 4.97 | 3rd/3 |
| High length | 9.9 | 10.20 | 3rd/3 |
| High width | 5.8 | 6.13 | 3rd/3 |
| Max length | 10.2 | 10.40 | 3rd/3 |
| Max width | 6.1 | 6.30 | 3rd/3 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 100% of collections |
| Perispore loosening | P1; P2 | 100% of collections; 66% of collections |
| Dextrinoidity | D3; D4 | 100% of collections; 66% of collections |