Taxonomy
Collection 9516 is Hebeloma nigellum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 9516 was collected by C.A. Hobart, det: H.J. Beker on 17th February 2004 in Potteric Carr, South West Yorkshire, ENGLAND (54.3382°N, 1.0941°W, altitude approximately 260 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.
The surrounding habitat was described as deciduous willow thicket with a substrate of boggy 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. 5.3: Wetlands (inland) – Shrub dominated wetlands.
According to the GPS data the collection was in the Celtic broadleaf 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: yes.
Pileus: up to 33 mm diameter; shape not recorded; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment adnexed; maximum depth not recorded; number of complete lamellae 24; tears absent; white fimbriate edge weak.
Stipe: 50 x 4 {median} x 4 {basal} mm; stipe Q 12.5; base cylindrical; floccosity fibrillose; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 18.7; 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 yellow brown; guttulate yes; papillate no; Spore Code: O2; P0; D3.
Basidia: analysis not yet complete.
Cheilocystidia: main shape lageniform; special features apical thickening, stipitate; Cheilocystidia Ratios: A/M = 1.07; A/B = 0.62; B/M = 1.78.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 75 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis angular.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (11.7) 12.0–13.9 (14.1) 12.8 12.7 0.590 Width (µm) (6.7) 6.8–7.9 (8.0) 7.3 7.3 0.350 Q (1.59) 1.68–1.90 (1.94) 1.76 1.76 0.08 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (41) 42–89 63 62 12.67 Apex Width (4.2) 4.4–6.2 (6.3) 5.2 5.2 0.490 Median Width (4.1) 4.2–5.6 (6.3) 4.9 4.9 0.55 Basal Width (6.4) 6.9–11.2 (11.9) 8.8 8.9 1.64
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2004) 12.01 °C 5.33 °C 87.79 mm Collection month (2/2004) 6.17 °C 0.94 °C 54.47 mm Max month (2004) 19.39 °C 11.75 °C 193.63 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 | 31.0 | 35.00 | 15th/26 |
Average length | 12.8 | 12.15 | 4th–6th/28 |
Average width | 7.3 | 7.17 | 4th–10th/28 |
Standard deviation of length | 0.59 | 0.75 | 22nd/26 |
Standard deviation of width | 0.35 | 0.36 | 13th–14th/26 |
Median length | 12.7 | 12.15 | 5th–6th/26 |
Median width | 7.3 | 7.18 | 3rd–12th/26 |
Minimum length | 11.7 | 10.76 | 5th/27 |
Minimum width | 6.7 | 6.44 | 3rd–6th/28 |
Low length | 12.0 | 11.14 | 3rd–5th/27 |
Low width | 6.8 | 6.64 | 5th–10th/28 |
High length | 13.9 | 13.30 | 6th–7th/27 |
High width | 7.9 | 7.66 | 4th–9th/28 |
Max length | 14.1 | 13.74 | 11th/27 |
Max width | 8.0 | 7.84 | 7th–12th/28 |
Spore feature | Value | Commonalities |
---|---|---|
Ornamentation | O2 | 86% of collections |
Perispore loosening | P0 | 93% of collections |
Dextrinoidity | D3 | 83% of collections |