Taxonomy
Collection 16816 (herbarium acc. no. TLXM HJB16816) is Hebeloma velutipes.Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 16816 was collected by A. Montoya-Esquivel, A. Kong, H.J. Beker on 9th July 2017 in Parc Nacional La Malinche, Tlaxcala, MEXICO (19.2439°N, 98.003°W, altitude approximately 3120 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Abies) was present.
The surrounding habitat was described as coniferous, montane, subtropical woodland with a substrate of mossy 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. 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: no.
Pileus: 45–55 mm diameter; shape umbonate broadly; margin characters involute, overhanging pileus; viscosity tacky when moist; spotting yes; hygrophanous no; colour variation unicolor; with colour at centre cream; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 3 mm; number of complete lamellae 75; tears absent; white fimbriate edge not recorded.
Stipe: 60–80 x 10–11 {median} x 17–18 {basal} mm; stipe Q 6.0–7.3; base bulbous; floccosity velute; rooting no; mycelial chords yes.
Context: texture firm; stipe interior hollow, superior wick; stipe flesh discolouring from base no; slenderness measure 9.3; smell raphanoid; taste not recorded.
Spore deposit colour: brownish olive.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, limoniform; colour through microscope yellow, yellow brown; guttulate yes; papillate yes; Spore Code: O3; P1; D3.
Basidia: 24.9–31.7 x 7.9–9.7 μm; ave. Q = 3.3; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, clavate-lageniform or clavate-ventricose, ventricose; special features septa; Cheilocystidia Ratios: A/M = 1.54; A/B = 1.41; B/M = 1.13.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 90 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical, thickly sausage-shaped up to 16 μm wide.
Caulocystidia: caulocystidia maximum length 130 μm.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (10.1) 10.4–12.2 (13.0) 11.3 11.2 0.560 Width (µm) (6.1) 6.3–7.1 (7.2) 6.7 6.6 0.220 Q (1.51) 1.57–1.84 (1.93) 1.70 1.70 0.08 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (42) 47–72 (74) 60 61 8.55 Apex Width (4.5) 6.2–9.5 (10.5) 7.7 7.7 1.080 Median Width (3.9) 4.1–5.7 (6.0) 4.9 5.0 0.59 Basal Width (3.9) 4.0–6.8 (6.9) 5.5 5.6 0.99
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (2017) 19.76 °C 3.60 °C 101.51 mm Collection month (7/2017) 19.13 °C 5.24 °C 165.15 mm Max month (2017) 21.92 °C 5.70 °C 279.53 mm
- arrow_drop_downarrow_drop_upAnalyse this collection
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 measurements | My value | Species mean value | Position |
|---|---|---|---|
| Count | 146.0 | 52.33 | 1st/149 |
| Average length | 11.3 | 11.12 | 55th–65th/149 |
| Average width | 6.7 | 6.55 | 42nd–60th/149 |
| Standard deviation of length | 0.56 | 0.70 | 105th–107th/132 |
| Standard deviation of width | 0.22 | 0.33 | 120th–123rd/132 |
| Median length | 11.2 | 11.06 | 55th–62nd/132 |
| Median width | 6.6 | 6.55 | 54th–74th/132 |
| Minimum length | 10.1 | 9.61 | 34th–41st/132 |
| Minimum width | 6.1 | 5.85 | 34th–44th/132 |
| Low length | 10.4 | 10.04 | 36th–43rd/132 |
| Low width | 6.3 | 6.07 | 33rd–46th/132 |
| High length | 12.2 | 12.10 | 57th–63rd/132 |
| High width | 7.1 | 7.03 | 48th–61st/132 |
| Max length | 13.0 | 12.59 | 34th–39th/132 |
| Max width | 7.2 | 7.31 | 67th–82nd/132 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3 | 31% of collections |
| Perispore loosening | P1 | 56% of collections |
| Dextrinoidity | D3 | 92% of collections |