Hebeloma.org: Collection HJB1000061

Taxonomy

Collection 1000061 (herbarium acc. no. PC0091492) is Hebeloma velutipes. It is the holotype of heterotypic synonym Hebeloma bulbosum Romagn. (1983).

Description

Collecting details

Collection 1000061 was collected by H. Mesplede, det: H. Romagesi (77.333) on 13th October 1977 in Aureilhan, Landes, FRANCE (approx. 43.24°N, 0.09°E, altitude approximately 310 m above sea level - Google maps). The ectomycorrhizal families Pinaceae (genus Pinus) and Fagaceae (genus Quercus) were present.
The surrounding habitat was described as woodland ditch with a substrate of boggy, decomposed soil and litter, 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 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: 20–57 mm diameter; shape convex; margin characters involute; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre cinnamon; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment not recorded; maximum depth up to 5 mm; number of complete lamellae 60; tears not recorded; white fimbriate edge not recorded.
Stipe: 25–35 x 5–7 {median} x 8–10 {basal} mm; stipe Q 5.0; base bulbous; floccosity pruinose; rooting not recorded; mycelial chords not recorded.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base not recorded; slenderness measure 4.7; smell raphanoid; taste bitter.
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 weak; Spore Code: O2; P0; D3.
Basidia: analysis not yet complete.
Cheilocystidia: main shape clavate, gently clavate, clavate-lageniform or clavate-ventricose; special features median thickening, septa; Cheilocystidia Ratios: A/M = 1.36; A/B = 1.35; B/M = 1.03.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (9.0) 9.9–12.2 (12.5) 11.1 11.2 0.670
Width (µm) (5.8) 6.4–7.3 (7.5) 6.8 6.8 0.310
Q (1.43) 1.47–1.77 (1.81) 1.63 1.64 0.09

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length (39) 40–68 (72) 56 57 8.51
Apex Width (5.0) 5.8–8.8 (9.6) 7.3 7.2 0.980
Median Width (4.5) 4.9–6.7 (7.3) 5.6 5.4 0.6
Basal Width 4.8–7.6 5.8 5.4 0.94

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(9.0) 9.9–12.2 (12.5)	11.1	11.2	0.670
Width (µm)	(5.8) 6.4–7.3 (7.5)	6.8	6.8	0.310
Q	(1.43) 1.47–1.77 (1.81)	1.63	1.64	0.09

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	(39) 40–68 (72)	56	57	8.51
Apex Width	(5.0) 5.8–8.8 (9.6)	7.3	7.2	0.980
Median Width	(4.5) 4.9–6.7 (7.3)	5.6	5.4	0.6
Basal Width	4.8–7.6	5.8	5.4	0.94

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1977) 17.61 °C 7.42 °C 118.03 mm
Collection month (10/1977) 20.25 °C 10.15 °C 125.45 mm
Max month (1977) 23.79 °C 13.36 °C 244.05 mm

	Max temp	Min temp	Precipitation
Annualised average (1977)	17.61 °C	7.42 °C	118.03 mm
Collection month (10/1977)	20.25 °C	10.15 °C	125.45 mm
Max month (1977)	23.79 °C	13.36 °C	244.05 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	86.0	52.33	16^th–17^th/149
Average length	11.1	11.12	75^th–86^th/149
Average width	6.8	6.55	32^nd–41^st/149
Standard deviation of length	0.67	0.70	71^st–75^th/132
Standard deviation of width	0.31	0.33	65^th–68^th/132
Median length	11.2	11.06	55^th–62^nd/132
Median width	6.8	6.55	28^th–40^th/132
Minimum length	9.0	9.61	103^rd–110^th/132
Minimum width	5.8	5.85	70^th–84^th/132
Low length	9.9	10.04	80^th–88^th/132
Low width	6.4	6.07	22^nd–32^nd/132
High length	12.2	12.10	57^th–63^rd/132
High width	7.3	7.03	33^rd–37^th/132
Max length	12.5	12.59	66^th–75^th/132
Max width	7.5	7.31	37^th–41^st/132

Spore feature	Value	Commonalities
Ornamentation	O2	90% of collections
Perispore loosening	P0	75% of collections
Dextrinoidity	D3	92% of collections