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Taxonomy

Collection 18367 is Hebeloma sporadicum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 18367 was collected by H.J. Beker, L. Davies, N. Burghardt, J. Burghardt on 18th October 2018 in Stokes State Park, New Jersey, UNITED STATES (41.1679°N, 74.8442°W, altitude approximately 265 m above sea level - Google maps). The ectomycorrhizal families Fagaceae (genus Fagus) and Pinaceae (genus Pinus) were present.

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

    According to the GPS data the collection was in the Appalachian-Blue Ridge 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 Dfa (Cold, no dry season, hot summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: up to 53 mm diameter; shape applanate; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre pale cream; and colour at margin not recorded; with remains of universal veil no.

    Lamellae: attachment emarginate; maximum depth up to 3 mm; number of complete lamellae 104; tears visible with x10 lens; white fimbriate edge weak.

    Stipe: 75 x 15 {median} x 20 {basal} mm; stipe Q 5.0; base clavate; floccosity pruinose at apex; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 7.1; smell none; taste not recorded.

    Spore deposit colour: brownish olive.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, limoniform; colour through microscope not recorded; guttulate not recorded; papillate yes; Spore Code: O3; O4; P2; D1.

    Basidia: 32.5–37.3 x 8.6–9.6 μm; ave. Q = 3.8; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-stipitate, spathulate-stipitate; special features sinuate; Cheilocystidia Ratios: A/M = 1.99; A/B = 2.16; B/M = 0.96.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 110 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical up to 17 μm wide.

    Caulocystidia: caulocystidia maximum length 90 μm.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.0) 10.4–12.9 (13.5)11.611.50.730
    Width (µm)(5.6) 6.2–7.06.76.70.260
    Q(1.52) 1.57–1.90 (2.28)1.741.730.12

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(46) 51–74 (79)62618.21
    Apex Width(6.5) 6.8–9.3 (9.4)8.18.00.820
    Median Width(3.2) 3.3–4.9 (5.6)4.14.00.59
    Basal Width3.0–5.1 (5.2)3.83.70.7
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2018)15.61 °C4.06 °C132.86 mm
    Collection month (10/2018)16.60 °C5.60 °C122.16 mm
    Max month (2018)28.68 °C16.93 °C211.91 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 146.0 70.70 1st/10
Average length 11.6 11.35 4th/10
Average width 6.7 6.50 3rd/10
Standard deviation of length 0.73 0.66 5th/10
Standard deviation of width 0.26 0.36 8th/10
Median length 11.5 11.29 4th/10
Median width 6.7 6.49 3rd/10
Minimum length 10.0 10.02 7th–8th/10
Minimum width 5.6 5.57 5th–6th/10
Low length 10.4 10.41 4th–6th/10
Low width 6.2 6.00 2nd–3rd/10
High length 12.9 12.39 1st–2nd/10
High width 7.0 7.02 4th–5th/10
Max length 13.5 13.05 2nd/10
Max width 7.0 7.44 5th–7th/10
Spore featureValueCommonalities
Ornamentation O3; O4 100% of collections; 50% of collections
Perispore loosening P2 100% of collections
Dextrinoidity D1 100% of collections