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Taxonomy

Collection 10970 (held at herbarium BR) is Hebeloma rostratum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 10970 was collected by J. Volders (VJ02121) on 29th September 2002 in Peerdsbos,Brasschaat B4.58.33, Antwerp, BELGIUM (approx. 51.27°N, 4.49°E, altitude approximately 15 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Quercus) was present.

    The surrounding habitat was described as not recorded.

    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: 25–36 mm diameter; shape convex; margin characters involute; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil no.

    Lamellae: attachment adnexed; maximum depth not recorded; number of complete lamellae 44; tears not recorded; white fimbriate edge present.

    Stipe: 20–40 x 6–7 {median} x 6–7 {basal} mm; stipe Q not recorded; base clavate; floccosity floccose; rooting not recorded; mycelial chords not recorded.

    Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure not recorded; smell cocoa, raphanoid; taste not recorded.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: hard, pileus blackening.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, limoniform; colour through microscope yellow brown; guttulate no; papillate yes; Spore Code: O3; O4; P2; P3; D3.

    Basidia: 28.7–35.3 x 7.6–8.7 μm; ave. Q = 4.1; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-lageniform or clavate-ventricose, ventricose; special features bifurcate, geniculate, median thickening, rostrate; Cheilocystidia Ratios: A/M = 1.52; A/B = 0.89; B/M = 1.79.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.6) 10.1–12.4 (13.4)11.111.00.720
    Width (µm)(5.9) 6.0–7.2 (7.4)6.46.30.350
    Q(1.40) 1.61–1.87 (1.96)1.731.730.09

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(36) 37–57 (58)44426.77
    Apex Width(2.6) 4.1–8.6 (9.9)6.16.21.470
    Median Width(3.5) 3.6–5.2 (5.5)4.54.50.54
    Basal Width(3.8) 5.4–9.8 (10.6)7.98.01.53
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2002)15.11 °C7.79 °C80.00 mm
    Collection month (9/2002)19.69 °C10.97 °C41.45 mm
    Max month (2002)23.37 °C15.10 °C126.03 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 55.0 47.17 7th/18
Average length 11.1 12.29 17th–18th/18
Average width 6.4 6.97 16th/18
Standard deviation of length 0.72 0.94 14th/15
Standard deviation of width 0.35 0.47 11th/15
Median length 11.0 12.21 15th/15
Median width 6.3 6.97 14th/15
Minimum length 9.6 10.16 13th/15
Minimum width 5.9 6.03 9th/15
Low length 10.1 10.87 13th–14th/15
Low width 6.0 6.31 12th/15
High length 12.4 13.70 14th–15th/15
High width 7.2 7.70 12th–13th/15
Max length 13.4 14.41 14th/15
Max width 7.4 8.10 12th/15
Spore featureValueCommonalities
Ornamentation O3; O4 83% of collections; 88% of collections
Perispore loosening P2; P3 55% of collections; 100% of collections
Dextrinoidity D3 100% of collections