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Taxonomy

Collection 1000026 (held at herbarium LIP) is the holotype of Hebeloma psammophilum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000026 was collected by M. Bon (90832) on 10th November 1969 in Le Crotoy, Somme, FRANCE (approx. 50.2167°N, 1.6258°E, altitude approximately 0 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.

    The surrounding habitat was described as dune 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. 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: yes.

    Pileus: 40–80 mm diameter; shape umbonate weakly; margin characters involute; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre clay-buff; and colour at margin cream; with remains of universal veil yes.

    Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 50; tears absent; white fimbriate edge present.

    Stipe: 60–100 x 10–15 {median} x 10–15 {basal} mm; stipe Q 6.0–6.7; base sand bulb, tapering; floccosity fibrillose, pruinose at apex; rooting yes; mycelial chords no.

    Context: texture firm; stipe interior hollow, superior wick; stipe flesh discolouring from base weak; slenderness measure 8.7; smell raphanoid weakly; taste bitter weakly, raphanoid weakly.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape ellipsoid, ovoid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O1; P0; D0; D1.

    Basidia: 28.8–32.8 x 8.9–10.6 μm; ave. Q = 3.2; basidia spore nature not recorded.

    Cheilocystidia: main shape lageniform, ventricose; special features apical thickening; Cheilocystidia Ratios: A/M = 1.05; A/B = 0.79; B/M = 1.41.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 100 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis thinly sausage-shaped.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.4) 9.8–12.2 (12.7)11.111.10.740
    Width (µm)6.0–7.2 (7.5)6.66.60.340
    Q(1.50) 1.61–1.80 (1.86)1.691.680.07

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(31) 34–58 (59)48499.24
    Apex Width(3.1) 4.1–8.4 (10.2)6.46.31.430
    Median Width(5.4) 5.5–8.5 (8.7)6.66.01.29
    Basal Width(5.9) 6.7–11.1 (11.4)9.19.21.71
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1969)14.06 °C6.89 °C59.22 mm
    Collection month (11/1969)10.50 °C4.68 °C128.38 mm
    Max month (1969)22.45 °C13.64 °C128.38 mm

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 measurementsMy valueSpecies mean valuePosition
Count 65.0 47.00 3rd/13
Average length 11.1 12.51 13th/13
Average width 6.6 7.03 11th–12th/13
Standard deviation of length 0.74 0.88 10th/13
Standard deviation of width 0.34 0.39 10th/13
Median length 11.1 12.51 13th/13
Median width 6.6 7.04 12th/13
Minimum length 9.4 10.67 13th/13
Minimum width 6.0 6.20 8th–11th/13
Low length 9.8 11.18 13th/13
Low width 6.0 6.42 11th–13th/13
High length 12.2 13.80 13th/13
High width 7.2 7.58 11th/13
Max length 12.7 14.50 11th–13th/13
Max width 7.5 7.89 11th/13
Spore featureValueCommonalities
Ornamentation O1 100% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D0; D1 61% of collections; 76% of collections