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Taxonomy

Collection 1000238 (herbarium acc. no. PRC B157) is Hebeloma ischnostylum. It is the lectotype of heterotypic synonym Hebeloma fragrantissimum Velen. (1920).

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000238 was collected by Kaspar, det: J. Velenovsky in October 1919 in Hane, Kosirem west of Olomouc, CZECH REPUBLIC (approx. 49.5519°N, 17.03°E, altitude approximately 350 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.

    The surrounding habitat was described as willow thicket, 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. 1.4: Forest – Temperate.

    According to the GPS data the collection was in the Central European 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 Broadleaf & Mixed Forests) and Koppen climate code Dfb (Cold, no dry season, warm summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: 15–35 mm diameter; shape umbonate weakly; margin characters involute; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation unicolor; with colour at centre pale yellow; and colour at margin not recorded; with remains of universal veil not recorded.

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

    Stipe: 25–50 x 3–4 {median} x not recorded {basal} mm; stipe Q 8.3–12.5; base cylindrical; floccosity floccose at apex; rooting not recorded; mycelial chords not recorded.

    Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base no; slenderness measure 15.9; smell sacchariolentia, sweet; 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 not recorded; guttulate not recorded; papillate weak; Spore Code: O3; P2; P3; D3; D4.

    Basidia: 27.5–38.4 x 6.3–7.9 μm; ave. Q = 4.6; basidia spore nature not recorded.

    Cheilocystidia: main shape balloon-shaped, clavate, clavate-stipitate, cylindrical; special features irregular, yellow contents; Cheilocystidia Ratios: A/M = 1.03; A/B = 1.27; B/M = 0.86.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.7) 10.2–11.6 (12.3)11.011.00.510
    Width (µm)(5.0) 5.4–6.5 (6.6)5.95.90.340
    Q(1.60) 1.71–2.01 (2.09)1.871.880.1

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(38) 39–55 (66)46446.31
    Apex Width(1.6) 4.7–9.4 (10.5)7.27.21.440
    Median Width(4.4) 5.8–9.8 (10.4)7.47.31.38
    Basal Width(2.7) 4.2–8.2 (8.4)6.36.71.51
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1919)--- °C--- °C--- mm
    Collection month (10/1919)--- °C--- °C--- mm
    Max month (1919)--- °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 50.0 39.75 9th–10th/24
Average length 11.0 11.38 23rd–25th/25
Average width 5.9 6.04 18th–19th/25
Standard deviation of length 0.51 0.70 22nd/24
Standard deviation of width 0.34 0.38 15th–17th/24
Median length 11.0 11.40 20th–21st/24
Median width 5.9 6.08 18th/24
Minimum length 9.7 9.98 16th–17th/24
Minimum width 5.0 5.21 19th–20th/24
Low length 10.2 10.38 14th–18th/24
Low width 5.4 5.48 13th–17th/24
High length 11.6 12.47 24th/24
High width 6.5 6.59 17th–19th/24
Max length 12.3 12.94 21st/24
Max width 6.6 6.72 18th–21st/24
Spore featureValueCommonalities
Ornamentation O3 100% of collections
Perispore loosening P2; P3 86% of collections; 52% of collections
Dextrinoidity D3; D4 95% of collections; 39% of collections