Hebeloma.org: Collection HJB12532

Taxonomy

Collection 12532 (herbarium acc. no. WAG-W9545) is Hebeloma leucosarx.

Description

Collecting details

Collection 12532 was collected by D.K. Aanen on 5th October 1995 in Roden, Drenthe, NETHERLANDS (approx. 53.14°N, 6.42°E, altitude approximately 0 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Fagus) was present.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the European Atlantic 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 Cfb (Temperate, no dry season, warm summer).

Macroscopic description
Cortina present: no.
Pileus: 30–40 mm diameter; shape convex, umbonate weakly; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; colour variation not recorded; with colour at centre yellowish brown; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 50; tears absent; white fimbriate edge present.
Stipe: 40–48 x 4–5 {median} x not recorded {basal} mm; stipe Q 8.7–10.0; base clavate; floccosity floccose weak; rooting not recorded; mycelial chords not recorded.
Context: texture firm; stipe interior hollow, superior wick; stipe flesh discolouring from base not recorded; slenderness measure 11.5; smell raphanoid; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: rich brown color.

Microscopic description
Spores: shape amygdaloid; colour through microscope not recorded; guttulate not recorded; papillate no; Spore Code: O2; O3; P1; D2; D3.
Basidia: 29.1–30.8 x 6.6–8.1 μm; ave. Q = 4.1; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, clavate-lageniform or clavate-ventricose; special features geniculate, septa; Cheilocystidia Ratios: A/M = 1.49; A/B = 1.47; B/M = 1.06.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) 11.4–12.2 (12.3) 11.7 11.7 0.360
Width (µm) (6.2) 6.3–6.8 6.6 6.5 0.230
Q 1.74–1.93 (1.97) 1.79 1.75 0.1

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length (53) 55–75 (76) 67 67 8.65
Apex Width 6.3–8.6 (9.8) 7.1 6.8 0.860
Median Width (4.2) 4.3–5.1 (5.2) 4.6 4.6 0.34
Basal Width (3.4) 3.6–6.1 4.9 4.9 1.15

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	11.4–12.2 (12.3)	11.7	11.7	0.360
Width (µm)	(6.2) 6.3–6.8	6.6	6.5	0.230
Q	1.74–1.93 (1.97)	1.79	1.75	0.1

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	(53) 55–75 (76)	67	67	8.65
Apex Width	6.3–8.6 (9.8)	7.1	6.8	0.860
Median Width	(4.2) 4.3–5.1 (5.2)	4.6	4.6	0.34
Basal Width	(3.4) 3.6–6.1	4.9	4.9	1.15

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1995) 13.44 °C 5.62 °C 71.42 mm
Collection month (10/1995) 16.49 °C 8.40 °C 19.72 mm
Max month (1995) 24.54 °C 13.75 °C 140.68 mm

	Max temp	Min temp	Precipitation
Annualised average (1995)	13.44 °C	5.62 °C	71.42 mm
Collection month (10/1995)	16.49 °C	8.40 °C	19.72 mm
Max month (1995)	24.54 °C	13.75 °C	140.68 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	5.0	48.44	38^th–39^th/39
Average length	11.7	10.86	4^th–5^th/39
Average width	6.6	6.31	6^th–11^th/39
Standard deviation of length	0.36	0.65	38^th/38
Standard deviation of width	0.23	0.33	35^th/38
Median length	11.7	10.87	3^rd–4^th/38
Median width	6.5	6.31	12^th–15^th/38
Minimum length	11.4	9.47	1^st/38
Minimum width	6.2	5.63	2^nd–5^th/38
Low length	11.4	9.86	1^st/38
Low width	6.3	5.81	3^rd–4^th/38
High length	12.2	11.83	13^th–15^th/38
High width	6.8	6.81	20^th–22^nd/38
Max length	12.3	12.40	19^th–20^th/38
Max width	6.8	7.11	26^th–28^th/38

Spore feature	Value	Commonalities
Ornamentation	O2; O3	87% of collections; 23% of collections
Perispore loosening	P1	23% of collections
Dextrinoidity	D2; D3	30% of collections; 97% of collections