Hebeloma.org: Collection HJB1000149

Taxonomy

Collection 1000149 (held at herbarium JE) is Hebeloma sacchariolens. It is the holotype of heterotypic synonym Hebeloma latifolium Gröger & Zschiesch. (1981).

Description

Collecting details

Collection 1000149 was collected by F. Gröger, det: Groger on 18th September 1978 in See-ecke near Ballstadt, Thuringia, GERMANY (approx. 51.0416°N, 10.7447°E, altitude approximately 330 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genera Carpinus and Corylus), Fagaceae (genus Quercus) and Malvaceae (genus Tilia) were present.
The surrounding habitat was described as deciduous woodland 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. 1.4: Forest – Temperate.
According to the GPS data the collection was in the Central European 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 Dfb (Cold, no dry season, warm summer).

Macroscopic description
Cortina present: no.
Pileus: 20–45 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting yes; hygrophanous no; colour variation two-colour; with colour at centre yellowish brown; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment adnate, decurrent tooth, emarginate; maximum depth up to 8 mm; number of complete lamellae 38; tears absent; white fimbriate edge absent.
Stipe: 25–45 x 3–7 {median} x 3–6 {basal} mm; stipe Q 6.4–7.1; base cylindrical, tapering; floccosity pruinose at apex; rooting no; mycelial chords not recorded.
Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base yes; slenderness measure 7.7; smell sacchariolentia, sweet; taste raphanoid weakly.
Spore deposit colour: analysis not yet complete.
Exsiccata: pileus blackening.

Microscopic description
Spores: shape amygdaloid, limoniform; colour through microscope brown, yellow brown; guttulate no; papillate yes; Spore Code: O3; P2; P3; D3.
Basidia: 34.2–37.6 x 7.1–9.2 μm; ave. Q = 4.4; basidia spore nature not recorded.
Cheilocystidia: main shape balloon-shaped, gently clavate, cylindrical, ventricose; special features irregular, many collapsed in exsiccata, short; Cheilocystidia Ratios: A/M = 1.35; A/B = 1.48; B/M = 0.98.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (10.1) 10.8–13.0 (13.3) 12.0 12.2 0.700
Width (µm) (6.2) 6.3–7.5 (7.8) 6.9 6.9 0.380
Q (1.56) 1.61–1.86 (1.88) 1.74 1.76 0.08

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length 17–18 18 18 0.26
Apex Width (3.2) 3.8–7.2 (7.6) 5.6 5.7 1.210
Median Width (2.3) 2.5–5.2 (5.3) 4.0 4.3 1.52
Basal Width 2.8–3.7 3.3 3.6 0.52

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(10.1) 10.8–13.0 (13.3)	12.0	12.2	0.700
Width (µm)	(6.2) 6.3–7.5 (7.8)	6.9	6.9	0.380
Q	(1.56) 1.61–1.86 (1.88)	1.74	1.76	0.08

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	17–18	18	18	0.26
Apex Width	(3.2) 3.8–7.2 (7.6)	5.6	5.7	1.210
Median Width	(2.3) 2.5–5.2 (5.3)	4.0	4.3	1.52
Basal Width	2.8–3.7	3.3	3.6	0.52

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1978) 11.55 °C 3.53 °C 45.56 mm
Collection month (9/1978) 16.12 °C 7.78 °C 76.09 mm
Max month (1978) 20.21 °C 10.40 °C 89.78 mm

	Max temp	Min temp	Precipitation
Annualised average (1978)	11.55 °C	3.53 °C	45.56 mm
Collection month (9/1978)	16.12 °C	7.78 °C	76.09 mm
Max month (1978)	20.21 °C	10.40 °C	89.78 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	43.0	38.29	15^th/28
Average length	12.0	11.64	9^th–12^th/29
Average width	6.9	6.83	7^th–18^th/29
Standard deviation of length	0.7	0.80	18^th–19^th/28
Standard deviation of width	0.38	0.40	17^th–19^th/28
Median length	12.2	11.65	9^th/28
Median width	6.9	6.85	9^th–13^th/28
Minimum length	10.1	9.96	17^th/28
Minimum width	6.2	5.87	4^th–8^th/28
Low length	10.8	10.44	10^th–12^th/28
Low width	6.3	6.21	7^th–11^th/28
High length	13.0	12.76	12^th–14^th/28
High width	7.5	7.37	8^th–11^th/28
Max length	13.3	13.26	15^th/28
Max width	7.8	7.54	6^th–9^th/28

Spore feature	Value	Commonalities
Ornamentation	O3	84% of collections
Perispore loosening	P2; P3	78% of collections; 53% of collections
Dextrinoidity	D3	68% of collections