Hebeloma.org: Collection HJB13106

Taxonomy

Collection 13106 is Hebeloma marginatulum.

Description

Collecting details

Collection 13106 was collected by H.J. Beker, L. Davies on 26th August 2009 in Lac Verney, Aosta Valley, ITALY (45.6859°N, 6.886°E, altitude approximately 2105 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.
The surrounding habitat was described as alpine meadow with a substrate of calcareous 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. 5.11: Wetlands (inland) – Alpine wetlands (inc. temporary waters from snowmelt).
According to the GPS data the collection was in the Alps conifer and 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 Conifer Forests) and Koppen climate code ET (Polar, tundra).

Macroscopic description
Cortina present: yes.
Pileus: 17–27 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting no; hygrophanous no; colour variation unicolor; with colour at centre yellowish brown; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 6 mm; number of complete lamellae 38; tears absent; white fimbriate edge weak.
Stipe: 18–23 x 3–4 {median} x 3–4 {basal} mm; stipe Q 4.5–7.7; base cylindrical; floccosity fibrillose, tomentose; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base yes; slenderness measure 6.7; smell raphanoid; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.

Microscopic description
Spores: shape ellipsoid; colour through microscope brown; guttulate no; papillate no; Spore Code: O1; O2; P0; D0.
Basidia: 28.1–32.4 x 7.6–7.7 μm; ave. Q = 4.0; basidia spore nature not recorded.
Cheilocystidia: main shape lentiform, ventricose; special features bifurcate, septa; Cheilocystidia Ratios: A/M = 1.22; A/B = 0.53; B/M = 2.33.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 40 μm; ixocutis maximum hyphae width 6 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis ellipsoid, thickly sausage-shaped up to 20 μm wide.
Caulocystidia: caulocystidia maximum length 150 μm.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (10.2) 10.4–12.2 (12.5) 11.3 11.4 0.630
Width (µm) (5.5) 5.6–6.7 6.1 6.0 0.380
Q 1.70–2.04 (2.07) 1.88 1.88 0.13

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length (58) 60–73 69 71 6.94
Apex Width (4.6) 4.8–6.7 6.0 6.1 0.720
Median Width (3.6) 3.7–5.3 (5.4) 4.5 4.5 0.77
Basal Width 8.9–11.8 (12.0) 10.2 9.9 1.52

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(10.2) 10.4–12.2 (12.5)	11.3	11.4	0.630
Width (µm)	(5.5) 5.6–6.7	6.1	6.0	0.380
Q	1.70–2.04 (2.07)	1.88	1.88	0.13

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	(58) 60–73	69	71	6.94
Apex Width	(4.6) 4.8–6.7	6.0	6.1	0.720
Median Width	(3.6) 3.7–5.3 (5.4)	4.5	4.5	0.77
Basal Width	8.9–11.8 (12.0)	10.2	9.9	1.52

Temperature calculation
Max temp Min temp Precipitation
Annualised average (2009) 5.65 °C -1.60 °C 130.08 mm
Collection month (8/2009) 16.89 °C 7.82 °C 61.74 mm
Max month (2009) 16.89 °C 7.82 °C 283.33 mm

	Max temp	Min temp	Precipitation
Annualised average (2009)	5.65 °C	-1.60 °C	130.08 mm
Collection month (8/2009)	16.89 °C	7.82 °C	61.74 mm
Max month (2009)	16.89 °C	7.82 °C	283.33 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	13.0	57.16	41^st/43
Average length	11.3	10.97	14^th/44
Average width	6.1	6.38	27^th–32^nd/44
Standard deviation of length	0.63	0.69	26^th–27^th/42
Standard deviation of width	0.38	0.36	14^th–16^th/42
Median length	11.4	10.98	12^th–13^th/42
Median width	6.0	6.38	29^th–38^th/42
Minimum length	10.2	9.50	10^th/43
Minimum width	5.5	5.67	26^th–32^nd/43
Low length	10.4	9.98	10^th–12^th/43
Low width	5.6	5.88	29^th–37^th/43
High length	12.2	12.10	18^th–20^th/43
High width	6.7	6.97	27^th–29^th/43
Max length	12.5	12.74	24^th–26^th/43
Max width	6.7	7.30	37^th–39^th/43

Spore feature	Value	Commonalities
Ornamentation	O1; O2	100% of collections; 26% of collections
Perispore loosening	P0	100% of collections
Dextrinoidity	D0	73% of collections