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Taxonomy

Collection 1000274 (herbarium acc. no. NY 814868) is the lectotype of Hebeloma harperi.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000274 was collected by R.A. Harper (55), det: W.A. Murrill on 20th February 1911 in Berkeley, California, UNITED STATES (approx. 37.8716°N, 122.2727°W, altitude approximately 50 m above sea level - Google maps). No ectomycorrhizal plants were recorded.

    The surrounding habitat was described as lawn with a substrate of nutrient-enriched 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. 14.5: Urban Areas.

    According to the GPS data the collection was in the California interior chaparral and woodlands 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: Mediterranean Forests, Woodlands & Scrub) and Koppen climate code Csb (Temperate, dry summer, warm summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: yes.

    Pileus: 40–50 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation unicolor; with colour at centre yellowish brown; and colour at margin not recorded; with remains of universal veil not recorded.

    Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 70; tears absent; white fimbriate edge not recorded.

    Stipe: 30–40 x 5–10 {median} x 5–10 {basal} mm; stipe Q 4.0–6.0; base cylindrical; floccosity floccose weak; rooting not recorded; mycelial chords not recorded.

    Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base not recorded; slenderness measure 3.9; smell not recorded; taste not recorded.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, ellipsoid, ovoid; colour through microscope yellow; guttulate no; papillate no; Spore Code: O1; O2; P0; D1.

    Basidia: 30.8–37.9 x 7.5–9.4 μm; ave. Q = 4.1; basidia spore nature not recorded.

    Cheilocystidia: main shape lageniform, ventricose; special features apical thickening, median thickening, septa; Cheilocystidia Ratios: A/M = 1.04; A/B = 0.49; B/M = 2.24.

    Pleurocystidia: analysis not yet complete.

    Ixocutis: epicutis thickness (measured from exsiccata) 110 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation not recorded; shape of trama elements beneath subcutis thinly sausage-shaped up to 12 μm wide.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.2) 10.7–13.0 (13.4)11.912.10.800
    Width (µm)(5.9) 6.5–7.8 (8.1)7.17.10.470
    Q(1.39) 1.46–1.82 (1.91)1.671.680.11

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(35) 37–5543425.39
    Apex Width(3.0) 3.3–5.7 (6.2)4.34.20.780
    Median Width(3.2) 3.3–5.8 (5.9)4.44.40.81
    Basal Width(7.3) 7.4–11.5 (14.0)9.69.41.59
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1911)--- °C--- °C--- mm
    Collection month (2/1911)--- °C--- °C--- mm
    Max month (1911)--- °C--- °C--- 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 53.0 68.86 5th/7
Average length 11.9 11.19 1st/7
Average width 7.1 6.59 1st–2nd/7
Standard deviation of length 0.8 0.89 6th/7
Standard deviation of width 0.47 0.46 4th–5th/7
Median length 12.1 11.16 1st/7
Median width 7.1 6.54 1st/7
Minimum length 10.2 9.44 1st/7
Minimum width 5.9 5.64 2nd–3rd/7
Low length 10.7 9.84 1st/7
Low width 6.5 5.93 1st/7
High length 13.0 12.66 2nd/7
High width 7.8 7.39 2nd/7
Max length 13.4 13.47 5th/7
Max width 8.1 7.86 2nd–3rd/7
Spore featureValueCommonalities
Ornamentation O1; O2 28% of collections; 100% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D1 71% of collections