Hebeloma.org: Collection HJB13826

Taxonomy

Collection 13826 is Hebeloma velutipes.

Description

Collecting details

Collection 13826 was collected by H.J. Beker on 12th October 2011 in Hochwald, Locherhof, Baden-Württemberg, GERMANY (48.1674°N, 8.4979°E, altitude approximately 730 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genera Abies and Picea) was present.
The surrounding habitat was described as coniferous woodland with a substrate of calcareous, grassy, 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. 1.4: Forest – Temperate.
According to the GPS data the collection was in the Western European broadleaf 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).

Macroscopic description
Cortina present: no.
Pileus: 23–35 mm diameter; shape convex; margin characters smooth; 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 no.
Lamellae: attachment emarginate; maximum depth up to 3 mm; number of complete lamellae 62; tears visible with naked eye; white fimbriate edge present.
Stipe: 20–33 x 8–10 {median} x 8–13 {basal} mm; stipe Q 2.5–3.3; base clavate, cylindrical; floccosity floccose weak; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base no; slenderness measure 2.6; smell raphanoid; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.

Microscopic description
Spores: shape amygdaloid; colour through microscope not recorded; guttulate not recorded; papillate weak; Spore Code: O2; P0; D3.
Basidia: 34.9–35.9 x 7.7–8.1 μm; ave. Q = 4.5; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate; special features bifurcate; Cheilocystidia Ratios: A/M = 1.58; A/B = 1.73; B/M = 0.91.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 150 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical, thinly sausage-shaped up to 10 μm wide.
Caulocystidia: caulocystidia maximum length 200 μm.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) 8.9–10.1 (10.3) 9.5 9.6 0.360
Width (µm) 5.8–6.5 (6.9) 6.2 6.2 0.240
Q (1.43) 1.46–1.60 (1.65) 1.53 1.53 0.05

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length (63) 64–82 (83) 73 72 10.3
Apex Width 6.7–8.5 (8.6) 7.5 7.5 0.640
Median Width 4.3–5.1 4.7 4.6 0.43
Basal Width 3.9–4.7 (4.8) 4.2 4.0 0.53

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	8.9–10.1 (10.3)	9.5	9.6	0.360
Width (µm)	5.8–6.5 (6.9)	6.2	6.2	0.240
Q	(1.43) 1.46–1.60 (1.65)	1.53	1.53	0.05

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	(63) 64–82 (83)	73	72	10.3
Apex Width	6.7–8.5 (8.6)	7.5	7.5	0.640
Median Width	4.3–5.1	4.7	4.6	0.43
Basal Width	3.9–4.7 (4.8)	4.2	4.0	0.53

Temperature calculation
Max temp Min temp Precipitation
Annualised average (2011) 13.42 °C 3.46 °C 69.80 mm
Collection month (10/2011) 13.13 °C 2.60 °C 67.43 mm
Max month (2011) 23.02 °C 10.70 °C 187.68 mm

	Max temp	Min temp	Precipitation
Annualised average (2011)	13.42 °C	3.46 °C	69.80 mm
Collection month (10/2011)	13.13 °C	2.60 °C	67.43 mm
Max month (2011)	23.02 °C	10.70 °C	187.68 mm

Analyse this collection
- See this collection in our species identifier.
- See this collection's sequences in Genbank .

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	30.0	52.33	114^th/149
Average length	9.5	11.12	145^th/149
Average width	6.2	6.55	121^st–126^th/149
Standard deviation of length	0.36	0.70	130^th/132
Standard deviation of width	0.24	0.33	107^th–110^th/132
Median length	9.6	11.06	127^th–128^th/132
Median width	6.2	6.55	103^rd–110^th/132
Minimum length	8.9	9.61	111^st–115^th/132
Minimum width	5.8	5.85	70^th–84^th/132
Low length	8.9	10.04	123^rd–124^th/132
Low width	5.8	6.07	94^th–106^th/132
High length	10.1	12.10	130^th/132
High width	6.5	7.03	112^nd–117^th/132
Max length	10.3	12.59	130^th–131^st/132
Max width	6.9	7.31	102^nd–107^th/132

Spore feature	Value	Commonalities
Ornamentation	O2	90% of collections
Perispore loosening	P0	75% of collections
Dextrinoidity	D3	92% of collections