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Taxonomy

Collection 16632 (herbarium acc. no. C-F-103573) is Hebeloma islandicum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 16632 was collected by T. Borgen (86.291) on 5th September 1986 in Paamiut/Frederikshåb, N of town, 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 tundra snowbed with a substrate of 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. 5.1: Wetlands (inland) – Permanent rivers/streams/creeks (includes waterfalls).

    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: analysis not yet complete.

    Lamellae: attachment not recorded; maximum depth not recorded; number of complete lamellae 46; tears not recorded; white fimbriate edge not recorded.

    Stipe: analysis not yet complete.

    Context: analysis not yet complete.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid, limoniform; colour through microscope yellow, yellow pale; guttulate no; papillate yes; Spore Code: O1; O2; P1; D2.

    Basidia: 29.7–32.0 x 7.5–8.7 μm; ave. Q = 3.9; basidia spore nature not recorded.

    Cheilocystidia: main shape capitate-stipitate, clavate-stipitate, clavate-lageniform or clavate-ventricose; special features clamped septa, irregular, geniculate, septa, some very long; Cheilocystidia Ratios: A/M = 1.98; A/B = 1.57; B/M = 1.45.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 80 μm; ixocutis maximum hyphae width 5 μm; ixocutis hyphae encrustation no; shape of trama elements beneath subcutis ellipsoid, isodiametric, thickly sausage-shaped up to 16 μm wide.

    Caulocystidia: caulocystidia maximum length 90 μm.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.2) 10.6–13.5 (13.9)12.312.40.850
    Width (µm)(5.6) 6.3–7.6 (7.8)7.07.10.410
    Q(1.53) 1.59–1.90 (2.13)1.751.760.1

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(32) 43–73 (82)565511.46
    Apex Width(4.4) 5.8–11.5 (14.0)8.27.91.800
    Median Width(3.3) 3.5–5.5 (7.2)4.34.10.81
    Basal Width(2.8) 3.3–9.1 (9.8)6.15.71.81
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1986)2.72 °C-3.23 °C71.28 mm
    Collection month (9/1986)7.93 °C2.28 °C68.55 mm
    Max month (1986)12.39 °C5.35 °C104.36 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 82.0 65.25 1st/4
Average length 12.3 11.88 1st–2nd/4
Average width 7.0 6.75 1st–2nd/4
Standard deviation of length 0.85 0.75 1st/4
Standard deviation of width 0.41 0.34 1st/4
Median length 12.4 11.85 1st/4
Median width 7.1 6.75 1st/4
Minimum length 10.2 9.97 1st–2nd/4
Minimum width 5.6 5.95 4th/4
Low length 10.6 10.62 3rd/4
Low width 6.3 6.20 2nd/4
High length 13.5 13.05 1st/4
High width 7.6 7.30 1st/4
Max length 13.9 13.43 1st–2nd/4
Max width 7.8 7.65 2nd/4
Spore featureValueCommonalities
Ornamentation O1; O2 25% of collections; 100% of collections
Perispore loosening P1 75% of collections
Dextrinoidity D2 75% of collections