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Taxonomy

Collection 15711 (herbarium acc. no. C-F-119763) is Hebeloma alpinum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 15711 was collected by T. Borgen (06.034) on 29th July 2006 in Daneborg, 0.5 km E of Airstrip, N, GREENLAND (approx. 74.3049°N, 20.2162°W, altitude approximately 30 m above sea level - Google maps). The ectomycorrhizal family Rosaceae (genus Dryas) was present.

    The surrounding habitat was described as arctic heathland with a substrate of boggy 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. 5.10: Wetlands (inland) – Tundra wetlands (inc. pools and temporary waters from snowmelt).

    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: 22–37 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous yes; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.

    Lamellae: attachment adnate; maximum depth up to 3 mm; number of complete lamellae 64; tears visible with x10 lens; white fimbriate edge weak.

    Stipe: 22–25 x 7–9 {median} x 7–9 {basal} mm; stipe Q 2.8–3.1; base clavate, cylindrical; floccosity fibrillose, pruinose at apex; rooting not recorded; mycelial chords not recorded.

    Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base not recorded; slenderness measure 2.5; smell none, raphanoid weakly; taste mild, raphanoid weakly.

    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 yes; Spore Code: O2; P0; D2.

    Basidia: 30.6–32.4 x 8.1–8.9 μm; ave. Q = 3.7; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-stipitate; special features septa; Cheilocystidia Ratios: A/M = 1.92; A/B = 1.75; B/M = 1.26.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.4) 11.4–14.7 (15.5)13.213.31.120
    Width (µm)(5.9) 6.3–7.8 (8.3)7.06.90.460
    Q(1.38) 1.60–2.13 (2.21)1.901.920.17

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(40) 41–6553537.74
    Apex Width(6.8) 7.1–10.5 (11.2)8.68.41.300
    Median Width(3.2) 3.3–6.74.74.51.16
    Basal Width(1.8) 2.8–9.1 (9.7)5.85.82.23
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2006)-4.41 °C-9.11 °C21.54 mm
    Collection month (7/2006)6.65 °C2.22 °C44.00 mm
    Max month (2006)6.65 °C2.22 °C48.90 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 62.0 51.92 21st–23rd/86
Average length 13.2 12.22 7th–8th/87
Average width 7.0 7.03 45th–52nd/87
Standard deviation of length 1.12 0.81 6th/82
Standard deviation of width 0.46 0.41 24th–28th/82
Median length 13.3 12.23 7th–8th/82
Median width 6.9 7.04 49th–56th/82
Minimum length 10.4 10.47 45th–50th/84
Minimum width 5.9 6.19 60th–63rd/84
Low length 11.4 11.01 18th–21st/84
Low width 6.3 6.44 54th–58th/84
High length 14.7 13.50 8th–9th/84
High width 7.8 7.69 30th–35th/84
Max length 15.5 14.03 6th/84
Max width 8.3 8.03 24th–29th/84
Spore featureValueCommonalities
Ornamentation O2 88% of collections
Perispore loosening P0 68% of collections
Dextrinoidity D2 58% of collections