Taxonomy
Collection 13422 (herbarium acc. no. C C-F-89926 (holotype), BR BR-MYCO 169128-57 (isotype)) is the holotype of Hebeloma griseopruinatum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 13422 was collected by J. Heilmann-Clausen (C09-174) on 8th November 2009 in Eskebjerg Veterlyng, DENMARK (55.734°N, 11.2795°E, altitude approximately 0 m above sea level - Google maps). The ectomycorrhizal family Cistaceae (genus Helianthemum) was present.
The surrounding habitat was described as grassland with a substrate of calcareous 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. 4.4: Grassland – Temperate.
According to the GPS data the collection was in the Baltic 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 Broadleaf & Mixed Forests) and Koppen climate code Cfb (Temperate, no dry season, warm summer).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 20–35 mm diameter; shape convex, umbonate broadly; margin characters involute; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre orange-brown; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 54; tears absent; white fimbriate edge present.
Stipe: 23–34 x 6–7 {median} x 8 {basal} mm; stipe Q 3.5–4.8; base clavate; floccosity floccose, pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base no; slenderness measure 4.9; smell not recorded; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: normal.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid; colour through microscope brown pale; guttulate yes; papillate yes; Spore Code: O2; P1; P2; D3; D4.
Basidia: 28.5–38.9 x 6.7–8.4 μm; ave. Q = 4.3; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical, clavate-lageniform or clavate-ventricose; special features geniculate, septa; Cheilocystidia Ratios: A/M = 1.58; A/B = 1.15; B/M = 1.39.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 165 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical, ellipsoid up to 17 μm wide.
Caulocystidia: caulocystidia maximum length 75 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (9.8) 10.6–12.7 (13.8) 11.6 11.5 0.700 Width (µm) (5.2) 5.5–6.4 (6.8) 6.0 6.0 0.320 Q (1.73) 1.77–2.12 (2.18) 1.94 1.95 0.11 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (21) 24–37 (44) 30 30 4.84 Apex Width (4.2) 4.8–7.5 (9.2) 6.2 6.1 0.890 Median Width (2.6) 3.1–5.2 (5.8) 4.1 4.1 0.7 Basal Width (4.1) 4.5–6.7 (7.8) 5.6 5.6 0.82
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2009) 11.84 °C 6.90 °C 48.18 mm Collection month (11/2009) 9.32 °C 6.14 °C 96.36 mm Max month (2009) 21.47 °C 15.97 °C 96.36 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 | 51.31 | 6th/13 |
| Average length | 11.6 | 10.63 | 1st/13 |
| Average width | 6.0 | 5.99 | 6th–7th/13 |
| Standard deviation of length | 0.7 | 0.66 | 6th/13 |
| Standard deviation of width | 0.32 | 0.34 | 6th–7th/13 |
| Median length | 11.5 | 10.59 | 1st–2nd/13 |
| Median width | 6.0 | 6.00 | 6th–7th/13 |
| Minimum length | 9.8 | 9.40 | 1st–2nd/13 |
| Minimum width | 5.2 | 5.22 | 8th–9th/13 |
| Low length | 10.6 | 9.69 | 1st/13 |
| Low width | 5.5 | 5.47 | 5th–7th/13 |
| High length | 12.7 | 11.72 | 1st/13 |
| High width | 6.4 | 6.50 | 7th–9th/13 |
| Max length | 13.8 | 12.32 | 1st/13 |
| Max width | 6.8 | 6.80 | 6th–8th/13 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2 | 61% of collections |
| Perispore loosening | P1; P2 | 61% of collections; 15% of collections |
| Dextrinoidity | D3; D4 | 84% of collections; 53% of collections |