Collection 16750 (held at herbarium TLXM) is Hebeloma ambustiterranum.


  • arrow_drop_downarrow_drop_upCollecting details

    Collection 16750 was collected by L. Davies on 6th July 2017 in Municipality of Nanacamilpa, road from Nanacamilpa to Tepuente, Tlaxcala, MEXICO (19.4929°N, 98.5792°W, altitude approximately 2730 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Pinus) was present.

    The surrounding habitat was described as coniferous, montane, subtropical woodland with a substrate of burnt soil and litter, 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. 1.9: Forest – Subtropical/tropical moist montane.

    According to the GPS data the collection was in the Trans-Mexican Volcanic Belt pine-oak 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: Tropical & Subtropical Coniferous Forests) and Koppen climate code Cwb (Temperate, dry winter, warm summer).

  • arrow_drop_downarrow_drop_upMacroscopic description

    Cortina present: yes.

    Pileus: up to 45 mm diameter; shape umbonate broadly; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre cream; and colour at margin not recorded; with remains of universal veil yes.

    Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 65; tears absent; white fimbriate edge weak.

    Stipe: 55 x 10 {median} x 10 {basal} mm; stipe Q 5.5; base cylindrical; floccosity fibrillose, pruinose at apex; rooting no; mycelial chords no.

    Context: texture firm; stipe interior hollow; stipe flesh discolouring from base very strongly; slenderness measure 6.7; smell raphanoid strongly; taste not recorded.

    Spore deposit colour: clay-buff.

    Exsiccata: analysis not yet complete.

  • arrow_drop_downarrow_drop_upMicroscopic description

    Spores: shape ellipsoid, ovoid; colour through microscope brown pale, very pale, yellow pale; guttulate yes; papillate no; Spore Code: O1; P0; D1.

    Basidia: 25.8–28.6 x 6.7–7.1 μm; ave. Q = 3.9; basidia spore nature not recorded.

    Cheilocystidia: main shape lageniform, ventricose; special features septa; Cheilocystidia Ratios: A/M = 1.02; A/B = 0.61; B/M = 1.74.

    Pleurocystidia: no.

    Ixocutis: analysis not yet complete.

    Caulocystidia: analysis not yet complete.

    Spore(min) 5%-95% (max)meanmedianS.D.
    Length (µm)(7.3) 7.7–9.3 (9.6)
    Width (µm)(5.4) 5.6–6.4 (7.0)
    Q(1.23) 1.34–1.52 (1.58)1.431.430.06

    Cheilocystidium (µm)(min) 5%-95% (max)meanmedianS.D.
    Length37–51 (54)42405.34
    Apex Width(3.2) 3.6–
    Median Width(3.5) 3.7–4.7 (5.0)
    Basal Width(5.7) 5.8–9.3 (9.9)
  • arrow_drop_downarrow_drop_upTemperature calculation
    Max tempMin tempPrecipitation
    Annualised average (2017)22.22 °C4.91 °C93.25 mm
    Collection month (7/2017)21.35 °C7.23 °C163.10 mm
    Max month (2017)24.70 °C7.74 °C238.27 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 146.0 131.45 1st–13th/20
Average length 8.5 9.08 16th–18th/20
Average width 6.0 6.09 11th–17th/20
Standard deviation of length 0.47 0.60 19th/20
Standard deviation of width 0.25 0.35 18th–19th/20
Median length 8.5 9.06 16th–17th/20
Median width 6.0 6.06 10th–15th/20
Minimum length 7.3 7.52 9th–12th/20
Minimum width 5.4 5.24 6th–8th/20
Low length 7.7 8.13 14th–17th/20
Low width 5.6 5.59 10th–13th/20
High length 9.3 10.07 19th/20
High width 6.4 6.71 16th–20th/20
Max length 9.6 10.67 20th/20
Max width 7.0 7.19 15th–17th/20
Spore featureValueCommonalities
Ornamentation O1 100% of collections
Perispore loosening P0 100% of collections
Dextrinoidity D1 100% of collections