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Taxonomy

Collection 16624 (herbarium acc. no. C-F-103502) is Hebeloma aurantioumbrinum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 16624 was collected by T. Borgen (93.070) on 5th August 1993 in Paamiut/Frederikshåb, S, GREENLAND (approx. 62.01°N, 49.4°W, altitude approximately 10 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.

    The surrounding habitat was described as arctic, mesic tundra with a substrate of grassy, mossy 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. 4.1: Grassland – Tundra.

    According to the GPS data the collection was in the Koppen climate code ET (Polar, tundra).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: 13–23 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous yes; colour variation unicolor; with colour at centre fawn, ochraceous; and colour at margin not recorded; with remains of universal veil not recorded.

    Lamellae: attachment not recorded; maximum depth up to 4 mm; number of complete lamellae 31; tears visible with naked eye; white fimbriate edge not recorded.

    Stipe: 20–32 x 3–4 {median} x 3–4 {basal} mm; stipe Q 6.7–8.0; base cylindrical; floccosity pruinose; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 10.7; smell none; taste mild.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid; colour through microscope not recorded; guttulate not recorded; papillate no; Spore Code: O2; P0; P1; D1.

    Basidia: 31.2–32.4 x 7.0–8.3 μm; ave. Q = 4.3; basidia spore nature not recorded.

    Cheilocystidia: main shape gently clavate, clavate-stipitate; special features apical thickening; Cheilocystidia Ratios: A/M = 1.72; A/B = 1.92; B/M = 0.95.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.1) 9.7–11.9 (12.7)11.011.00.660
    Width (µm)(5.9) 6.2–7.1 (7.5)6.66.60.300
    Q(1.46) 1.52–1.81 (1.90)1.671.660.08

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(43) 45–64 (65)55556.38
    Apex Width(5.7) 5.8–8.4 (8.5)7.27.30.880
    Median Width3.0–5.2 (5.8)4.34.10.73
    Basal Width(2.2) 2.9–5.7 (6.9)4.03.81.13
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1993)0.55 °C-5.06 °C94.43 mm
    Collection month (8/1993)9.51 °C4.09 °C176.65 mm
    Max month (1993)10.88 °C4.75 °C176.65 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 124.0 74.06 3rd/16
Average length 11.0 11.12 13th–14th/20
Average width 6.6 6.49 6th–8th/20
Standard deviation of length 0.66 0.76 11th/16
Standard deviation of width 0.3 0.34 12th–13th/16
Median length 11.0 11.19 12th/16
Median width 6.6 6.58 6th–9th/16
Minimum length 9.1 9.65 17th/20
Minimum width 5.9 5.80 6th–9th/20
Low length 9.7 10.03 14th–15th/20
Low width 6.2 6.04 2nd–5th/20
High length 11.9 12.14 13th–14th/20
High width 7.1 6.98 8th–11th/20
Max length 12.7 12.82 14th/20
Max width 7.5 7.28 6th–10th/20
Spore featureValueCommonalities
Ornamentation O2 100% of collections
Perispore loosening P0; P1 75% of collections; 45% of collections
Dextrinoidity D1 95% of collections