Hebeloma.org: Collection HJB12907

Taxonomy

Collection 12907 (herbarium acc. no. G K13973, G 603) is Hebeloma incarnatulum. It is the holotype of heterotypic synonym Hebeloma stenocystis J. Favre (1960).

Description

Collecting details

Collection 12907 was collected by J. Favre on 7th September 1952 in Foret de Plan Ot, S-Charl, SWITZERLAND (approx. 46.54°N, 9.87°E, altitude approximately 1900 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Pinus) was present.
The surrounding habitat was described as coniferous, subalpine woodland with a substrate of 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. 1.1: Forest – Boreal.
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 Dfc (Cold, no dry season, cold summer).

Macroscopic description
Cortina present: no.
Pileus: up to 55 mm diameter; shape umbonate strongly; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous yes; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment adnate, emarginate; maximum depth not recorded; number of complete lamellae 60; tears visible with naked eye; white fimbriate edge present.
Stipe: 70 x 9 {median} x 11 {basal} mm; stipe Q not recorded; base clavate, subbulbous; floccosity floccose at apex, pruinose; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow, superior wick; stipe flesh discolouring from base yes; slenderness measure not recorded; smell raphanoid weakly; 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 no; Spore Code: O2; P0; D3.
Basidia: analysis not yet complete.
Cheilocystidia: main shape clavate, gently clavate, tapering; special features bifurcate; Cheilocystidia Ratios: A/M = 1.41; A/B = 1.21; B/M = 1.23.
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 ellipsoid, thickly sausage-shaped.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (10.5) 10.6–13.0 (13.2) 11.7 11.7 0.660
Width (µm) (6.0) 6.3–7.1 (7.6) 6.7 6.7 0.300
Q (1.57) 1.65–1.87 (1.93) 1.75 1.75 0.07

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length 38–66 (70) 51 49 9.05
Apex Width (4.6) 5.0–7.9 (8.7) 6.4 6.4 0.890
Median Width 3.6–5.2 (6.0) 4.4 4.4 0.56
Basal Width (3.3) 3.9–6.8 (8.5) 5.3 5.2 1.14

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(10.5) 10.6–13.0 (13.2)	11.7	11.7	0.660
Width (µm)	(6.0) 6.3–7.1 (7.6)	6.7	6.7	0.300
Q	(1.57) 1.65–1.87 (1.93)	1.75	1.75	0.07

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	38–66 (70)	51	49	9.05
Apex Width	(4.6) 5.0–7.9 (8.7)	6.4	6.4	0.890
Median Width	3.6–5.2 (6.0)	4.4	4.4	0.56
Basal Width	(3.3) 3.9–6.8 (8.5)	5.3	5.2	1.14

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1952) --- °C --- °C --- mm
Collection month (9/1952) --- °C --- °C --- mm
Max month (1952) --- °C --- °C --- mm

	Max temp	Min temp	Precipitation
Annualised average (1952)	--- °C	--- °C	--- mm
Collection month (9/1952)	--- °C	--- °C	--- mm
Max month (1952)	--- °C	--- °C	--- 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	59.0	53.83	10^th–12^th/23
Average length	11.7	10.17	1^st/23
Average width	6.7	6.10	1^st/23
Standard deviation of length	0.66	0.60	5^th–6^th/21
Standard deviation of width	0.3	0.28	9^th–10^th/21
Median length	11.7	10.18	1^st/21
Median width	6.7	6.12	1^st/21
Minimum length	10.5	8.99	1^st/21
Minimum width	6.0	5.46	2^nd–3^rd/21
Low length	10.6	9.29	1^st/21
Low width	6.3	5.67	1^st/21
High length	13.0	11.13	1^st/21
High width	7.1	6.53	2^nd/21
Max length	13.2	11.61	1^st/21
Max width	7.6	6.74	1^st/21

Spore feature	Value	Commonalities
Ornamentation	O2	86% of collections
Perispore loosening	P0	95% of collections
Dextrinoidity	D3	100% of collections