Taxonomy
Collection 1000142 (herbarium acc. no. PC0088805) is the holotype of Hebeloma cylindrosporum.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000142 was collected by H. Romagnesi (61.262) on 27th October 1961 in Foret d'Ermenonville near Bosquet du Prince, La Fontaine, Oise, FRANCE (approx. 49.15°N, 2.65°E, altitude approximately 110 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Pinus) was present.
The surrounding habitat was described as coniferous dune woodland with a substrate of acidic, mossy soil and litter, 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. 13.3: Coastal Sand Dunes.
According to the GPS data the collection was in the European Atlantic 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: 25–55 mm diameter; shape convex; margin characters crenulate, eroded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 10 mm; number of complete lamellae 48; tears absent; white fimbriate edge weak.
Stipe: 43–90 x 3–10 {median} x 3–10 {basal} mm; stipe Q 9.0–14.3; base cylindrical, tapering; floccosity fibrillose, pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base weak; slenderness measure 19.7; smell earthy; taste bitter.
Spore deposit colour: analysis not yet complete.
Exsiccata: normal.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape cylindrical; colour through microscope yellow brown; guttulate not recorded; papillate no; Spore Code: O2; P1; P2; D3.
Basidia: 16.6–17.8 x 6.0–6.7 μm; ave. Q = 2.7; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical, lageniform, ventricose; special features short; Cheilocystidia Ratios: A/M = 1.12; A/B = 0.69; B/M = 1.71.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 100 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis ellipsoid, thickly sausage-shaped.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (7.1) 8.0–9.8 (10.7) 8.9 8.8 0.670 Width (µm) (4.0) 4.3–5.2 4.7 4.7 0.260 Q (1.40) 1.71–2.09 (2.16) 1.90 1.90 0.13 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length 25–26 25 25 0.84 Apex Width 3.9–5.8 (6.1) 4.5 4.1 0.810 Median Width 3.1–4.4 (4.5) 3.6 3.3 0.75 Basal Width (4.8) 5.0–7.0 6.1 6.5 1.17
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1961) 15.45 °C 6.10 °C 46.11 mm Collection month (10/1961) 15.71 °C 7.58 °C 73.20 mm Max month (1961) 23.23 °C 12.20 °C 73.20 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 | 61.0 | 48.21 | 10th/28 |
| Average length | 8.9 | 8.97 | 20th–21st/28 |
| Average width | 4.7 | 4.61 | 6th–13th/28 |
| Standard deviation of length | 0.67 | 0.47 | 2nd/27 |
| Standard deviation of width | 0.26 | 0.23 | 5th–6th/27 |
| Median length | 8.8 | 9.01 | 21st–22nd/27 |
| Median width | 4.7 | 4.64 | 6th–14th/27 |
| Minimum length | 7.1 | 8.01 | 27th/27 |
| Minimum width | 4.0 | 4.10 | 16th–21st/27 |
| Low length | 8.0 | 8.29 | 21st–23rd/27 |
| Low width | 4.3 | 4.30 | 11th–17th/27 |
| High length | 9.8 | 9.70 | 12th–14th/27 |
| High width | 5.2 | 4.96 | 2nd–6th/27 |
| Max length | 10.7 | 9.98 | 2nd/27 |
| Max width | 5.2 | 5.13 | 8th–11th/27 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O2 | 100% of collections |
| Perispore loosening | P1; P2 | 46% of collections; 75% of collections |
| Dextrinoidity | D3 | 89% of collections |