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Taxonomy

Collection 1000449 (herbarium acc. no. TENN-F-016164) is an isotype of Hebeloma australe.

Description

  • arrow_drop_downarrow_drop_upCollecting details

    Collection 1000449 was collected by W.A. Murrill on 28th December 1942 in Gainesville, Florida, UNITED STATES (approx. 29.675°N, 82.3417°W, altitude approximately 50 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Quercus) was present.

    The surrounding habitat was described as not recorded with a substrate of soil.

    According to the GPS data the collection was in the Southeast US conifer savannas 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 Grasslands, Savannas & Shrublands) and Koppen climate code Cfa (Temperate, no dry season, hot summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: no.

    Pileus: 40–50 mm diameter; shape convex, umbonate weakly; margin characters involute, smooth; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil not recorded.

    Lamellae: attachment adnexed; maximum depth not recorded; number of complete lamellae 80; tears not recorded; white fimbriate edge present.

    Stipe: 40–50 x 6–8 {median} x 10–12 {basal} mm; stipe Q 6.3–6.7; base bulbous, tapering; floccosity floccose; rooting not recorded; mycelial chords not recorded.

    Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base not recorded; slenderness measure 6.5; smell none; taste bitter.

    Spore deposit colour: analysis not yet complete.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape amygdaloid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O1; O2; P0; D2; D3.

    Basidia: 22.7–30.9 x 6.7–7.6 μm; ave. Q = 3.7; basidia spore nature not recorded.

    Cheilocystidia: main shape gently clavate, clavate-stipitate, cylindrical, clavate-lageniform or clavate-ventricose, lageniform, ventricose; special features apical thickening, irregular, many collapsed in exsiccata, yellow contents; Cheilocystidia Ratios: A/M = 1.94; A/B = 1.12; B/M = 1.81.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(9.3) 9.4–11.2 (11.5)10.310.30.590
    Width (µm)(5.5) 5.8–6.5 (7.0)6.16.10.270
    Q(1.51) 1.53–1.83 (1.95)1.691.700.1

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length(34) 37–58 (59)47467.44
    Apex Width(4.0) 4.9–8.2 (34.2)6.76.23.520
    Median Width(2.2) 2.5–5.5 (6.4)3.73.31.01
    Basal Width(2.6) 5.2–8.8 (9.5)6.56.21.47
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (1942)--- °C--- °C--- mm
    Collection month (12/1942)--- °C--- °C--- mm
    Max month (1942)--- °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 91.45 19th/20
Average length 10.3 10.57 14th–19th/20
Average width 6.1 6.09 9th–13th/20
Standard deviation of length 0.59 0.66 14th–15th/20
Standard deviation of width 0.27 0.32 15th–17th/20
Median length 10.3 10.60 15th–19th/20
Median width 6.1 6.08 8th–12th/20
Minimum length 9.3 9.20 5th–6th/20
Minimum width 5.5 5.42 5th–10th/20
Low length 9.4 9.56 11th–13th/20
Low width 5.8 5.63 3rd–5th/20
High length 11.2 11.60 18th–19th/20
High width 6.5 6.63 13th–17th/20
Max length 11.5 12.08 20th/20
Max width 7.0 7.03 7th–9th/20
Spore featureValueCommonalities
Ornamentation O1; O2 35% of collections; 90% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D2; D3 50% of collections; 95% of collections