Hebeloma.org: Collection HJB13669

Taxonomy

Collection 13669 is Hebeloma subtortum.

Description

Collecting details

Collection 13669 was collected by H.J. Beker on 6th October 2010 in via Boleto, Castagneto da frutto, Carvasca, Piedmont, ITALY (44.3832°N, 7.4573°E, altitude approximately 595 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genus Castanea) was present.
The surrounding habitat was described as deciduous woodland plantation with a substrate of grassy 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 Italian sclerophyllous and semi-deciduous 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: Mediterranean Forests, Woodlands & Scrub) and Koppen climate code Cfb (Temperate, no dry season, warm summer).

Macroscopic description
Cortina present: yes.
Pileus: 18–29 mm diameter; shape umbonate; margin characters smooth; viscosity tacky when moist; spotting yes; hygrophanous no; colour variation unicolor; with colour at centre cream, pale cream; and colour at margin pale yellow; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 4 mm; number of complete lamellae 50; tears absent; white fimbriate edge not recorded.
Stipe: 26–56 x 6 {median} x 6 {basal} mm; stipe Q 4.3–8.6; base cylindrical; floccosity fibrillose; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow, superior wick; stipe flesh discolouring from base yes; slenderness measure 11.4; smell raphanoid; taste not recorded.
Spore deposit colour: yellowish brown.
Exsiccata: analysis not yet complete.

Microscopic description
Spores: shape ellipsoid, ovoid; colour through microscope yellow, yellow pale; guttulate weak; papillate no; Spore Code: O1; O2; P0; D0.
Basidia: 25.8–27.6 x 5.8–6.7 μm; ave. Q = 4.3; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical, lageniform, ventricose; special features clamped septa, geniculate; Cheilocystidia Ratios: A/M = 0.99; A/B = 0.65; B/M = 1.57.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: caulocystidia maximum length 100 μm.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (7.6) 8.2–9.9 (10.5) 8.9 8.8 0.540
Width (µm) (4.9) 5.0–5.9 (6.0) 5.4 5.4 0.260
Q (1.48) 1.50–1.74 (1.77) 1.63 1.63 0.07

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length (40) 41–48 44 45 3.35
Apex Width 4.3–5.8 (5.9) 5.0 5.0 0.590
Median Width (4.2) 4.3–5.3 (5.4) 4.7 4.7 0.49
Basal Width (6.1) 6.3–8.2 (8.4) 7.3 7.4 0.91

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(7.6) 8.2–9.9 (10.5)	8.9	8.8	0.540
Width (µm)	(4.9) 5.0–5.9 (6.0)	5.4	5.4	0.260
Q	(1.48) 1.50–1.74 (1.77)	1.63	1.63	0.07

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	(40) 41–48	44	45	3.35
Apex Width	4.3–5.8 (5.9)	5.0	5.0	0.590
Median Width	(4.2) 4.3–5.3 (5.4)	4.7	4.7	0.49
Basal Width	(6.1) 6.3–8.2 (8.4)	7.3	7.4	0.91

Temperature calculation
Max temp Min temp Precipitation
Annualised average (2010) 14.66 °C 7.08 °C 67.42 mm
Collection month (10/2010) 14.71 °C 7.67 °C 100.10 mm
Max month (2010) 27.35 °C 17.76 °C 127.45 mm

	Max temp	Min temp	Precipitation
Annualised average (2010)	14.66 °C	7.08 °C	67.42 mm
Collection month (10/2010)	14.71 °C	7.67 °C	100.10 mm
Max month (2010)	27.35 °C	17.76 °C	127.45 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	39.0	45.19	27^th/37
Average length	8.9	9.16	26^th–28^th/37
Average width	5.4	5.59	27^th–30^th/37
Standard deviation of length	0.54	0.60	24^th–25^th/35
Standard deviation of width	0.26	0.32	26^th–27^th/35
Median length	8.8	9.15	26^th/35
Median width	5.4	5.61	26^th–29^th/35
Minimum length	7.6	7.83	20^th–24^th/35
Minimum width	4.9	4.92	21^st–23^rd/35
Low length	8.2	8.23	19^th–20^th/35
Low width	5.0	5.13	22^nd–25^th/35
High length	9.9	10.06	22^nd–24^th/35
High width	5.9	6.08	23^rd–25^th/35
Max length	10.5	10.58	20^th–23^rd/35
Max width	6.0	6.29	26^th–28^th/35

Spore feature	Value	Commonalities
Ornamentation	O1; O2	100% of collections; 32% of collections
Perispore loosening	P0	100% of collections
Dextrinoidity	D0	89% of collections