Collection 1000011 (herbarium acc. no. L 0054088) is an isotype of Hebeloma lutense.


  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000011 was collected by H. Romagnesi (R59-232) on 11th October 1959 in Foret de Rambouillet (S.-et-O.), etang de la Tour., Yvelines, FRANCE (approx. 48.6°N, 1.7°E, altitude approximately 135 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genus Betula) and Salicaceae (genus Salix) were present.

    The surrounding habitat was described as woodland lakeside with a substrate of silty 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. 1.4: Forest – Temperate.

    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: 18–55 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation two-colour; with colour at centre dark fawn; and colour at margin not recorded; with remains of universal veil not recorded.

    Lamellae: attachment not recorded; maximum depth up to 10 mm; number of complete lamellae 47; tears visible with naked eye; white fimbriate edge weak.

    Stipe: 15–55 x 3–7 {median} x 3–7 {basal} mm; stipe Q 4.3–7.9; base clavate; floccosity pruinose; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow, superior wick; stipe flesh discolouring from base no; slenderness measure 5.7; smell cocoa, none; taste bitter.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: normal.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O2; P0; P1; D2.

    Basidia: 33.8–40.0 x 5.6–7.8 μm; ave. Q = 5.7; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-stipitate, clavate-lageniform or clavate-ventricose; special features sinuate; Cheilocystidia Ratios: A/M = 1.95; A/B = 1.86; B/M = 1.06.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 100 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis oblong.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.0) 9.2–11.7 (11.9)10.610.60.730
    Width (µm)(5.4) 5.5–6.6 (6.8)
    Q(1.48) 1.62–1.88 (1.92)1.741.740.09

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(33) 38–57 (59)47466.64
    Apex Width(5.5) 5.8–9.6 (11.6)
    Median Width(2.9) 3.1–
    Basal Width(3.2) 3.5–
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1959)16.27 °C6.43 °C38.65 mm
    Collection month (10/1959)17.22 °C6.40 °C57.46 mm
    Max month (1959)27.34 °C13.73 °C76.30 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 57.0 65.00 11th–15th/22
Average length 10.6 10.63 12th/23
Average width 6.1 5.90 7th–8th/24
Standard deviation of length 0.73 0.73 10th/21
Standard deviation of width 0.34 0.35 10th/21
Median length 10.6 10.56 10th/21
Median width 6.0 5.89 8th–10th/21
Minimum length 9.0 9.14 11th–13th/23
Minimum width 5.4 5.15 6th–9th/23
Low length 9.2 9.55 14th–17th/23
Low width 5.5 5.40 8th–11th/23
High length 11.7 11.69 11th–12th/23
High width 6.6 6.41 6th–8th/23
Max length 11.9 12.30 16th–17th/23
Max width 6.8 6.69 8th–10th/23
Spore featureValueCommonalities
Ornamentation O2 68% of collections
Perispore loosening P0; P1 45% of collections; 81% of collections
Dextrinoidity D2 95% of collections