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Taxonomy

Collection 1000095 (herbarium acc. no. MPU GM-1122) is the holotype of Hebeloma eburneum.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000095 was collected by G. Malençon (1122) on 8th November 1941 in Azrou, MOROCCO (33.4167°N, 5.2167°W, altitude approximately 1500 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Cedrus) was present.

    The surrounding habitat was described as not recorded.

    According to the GPS data the collection was in the Mediterranean conifer and mixed 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 Conifer Forests) and Koppen climate code Csa (Temperate, dry summer, hot summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: 60–100 mm diameter; shape convex, umbonate broadly; margin characters involute, smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil no.

    Lamellae: attachment emarginate; maximum depth up to 8 mm; number of complete lamellae 100; tears visible with naked eye; white fimbriate edge present.

    Stipe: 60–80 x 10–20 {median} x 14–20 {basal} mm; stipe Q 4.0–6.0; base clavate, cylindrical; floccosity floccose; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 4.6; smell raphanoid weakly; taste not recorded.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid; colour through microscope brown, very pale; guttulate no; papillate no; Spore Code: O3; P1; D0; D1.

    Basidia: 30.0–42.0 x 8.5–11.5 μm; ave. Q = 3.6; basidia spore nature not recorded.

    Cheilocystidia: main shape clavate-stipitate; special features conglutinate; Cheilocystidia Ratios: A/M = 2.43; A/B = 2.25; B/M = 1.08.

    Pleurocystidia: no.

    Ixocutis: epicutis thickness (measured from exsiccata) 100 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis not recorded.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(10.0) 10.4–12.8 (13.0)11.611.70.690
    Width (µm)(5.8) 6.0–7.0 (7.5)6.56.50.330
    Q(1.61) 1.65–1.98 (2.14)1.801.780.11

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length50–6557not recordednan
    Apex Width8.0–10.09.0not recordednot recorded
    Median Widthnot recorded3.7not recordednan
    Basal Widthnot recorded4.0not recordednan
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1941)--- °C--- °C--- mm
    Collection month (11/1941)--- °C--- °C--- mm
    Max month (1941)--- °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 51.46 48th–49th/90
Average length 11.6 11.78 57th–61st/92
Average width 6.5 6.54 43rd–56th/92
Standard deviation of length 0.69 0.74 59th/90
Standard deviation of width 0.33 0.37 51st–56th/90
Median length 11.7 11.80 46th–55th/90
Median width 6.5 6.54 42nd–53rd/90
Minimum length 10.0 10.23 61st–67th/92
Minimum width 5.8 5.78 34th–44th/92
Low length 10.4 10.67 62nd–69th/92
Low width 6.0 5.99 35th–46th/92
High length 12.8 12.89 50th–53rd/92
High width 7.0 7.12 53rd–57th/92
Max length 13.0 13.47 60th–61st/92
Max width 7.5 7.43 38th–44th/92
Spore featureValueCommonalities
Ornamentation O3 88% of collections
Perispore loosening P1 93% of collections
Dextrinoidity D0; D1 17% of collections; 81% of collections