Hebeloma.org: Collection HJB1000531

Taxonomy

Collection 1000531 (herbarium acc. no. MICH 231698) is Hebeloma paludicola. It is the holotype of heterotypic synonym Hebeloma marginatulum var. proximum A.H. Sm., V.S. Evenson & Mitchel (1983).

Description

Collecting details

Collection 1000531 was collected by V.S. Evenson, A.H. Smith (90631) on 28th August 1980 in Elk Camp, Pitkin County, Colorado, UNITED STATES (approx. 39.1875°N, 106.9352°W, altitude approximately 3000 m above sea level - Google maps). The ectomycorrhizal family Pinaceae (genus Picea) was present.
The surrounding habitat was described as coniferous, subalpine woodland, 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 Colorado Rockies 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: yes.
Pileus: 10–25 mm diameter; shape convex; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre brownish olive; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment adnate; maximum depth not recorded; number of complete lamellae 24; tears not recorded; white fimbriate edge present.
Stipe: 20–50 x 3–5 {median} x 3–5 {basal} mm; stipe Q 6.7–10.0; base cylindrical; floccosity pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base yes; slenderness measure 16.7; smell raphanoid; taste raphanoid.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.

Microscopic description
Spores: shape amygdaloid, limoniform; colour through microscope grey yellow; guttulate no; papillate yes; Spore Code: O2; P0; D2; D3.
Basidia: 23.5–35.8 x 7.1–8.5 μm; ave. Q = 3.9; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical, lageniform, pyriform, ventricose; special features geniculate, many collapsed in exsiccata, septa; Cheilocystidia Ratios: A/M = 1.10; A/B = 0.67; B/M = 1.69.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (10.4) 10.7–13.0 (13.6) 11.9 11.9 0.690
Width (µm) (5.9) 6.2–7.6 (8.4) 6.9 6.9 0.470
Q (1.46) 1.52–1.93 (2.07) 1.72 1.72 0.12

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length (36) 37–52 (53) 43 44 4.77
Apex Width (3.9) 4.0–6.1 4.9 4.9 0.650
Median Width (3.8) 3.9–5.4 (5.5) 4.5 4.3 0.49
Basal Width 5.8–9.4 (9.5) 7.6 7.6 1.27

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(10.4) 10.7–13.0 (13.6)	11.9	11.9	0.690
Width (µm)	(5.9) 6.2–7.6 (8.4)	6.9	6.9	0.470
Q	(1.46) 1.52–1.93 (2.07)	1.72	1.72	0.12

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	(36) 37–52 (53)	43	44	4.77
Apex Width	(3.9) 4.0–6.1	4.9	4.9	0.650
Median Width	(3.8) 3.9–5.4 (5.5)	4.5	4.3	0.49
Basal Width	5.8–9.4 (9.5)	7.6	7.6	1.27

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1980) 9.33 °C -7.00 °C 40.98 mm
Collection month (8/1980) 20.56 °C 3.08 °C 41.27 mm
Max month (1980) 22.50 °C 4.25 °C 86.20 mm

	Max temp	Min temp	Precipitation
Annualised average (1980)	9.33 °C	-7.00 °C	40.98 mm
Collection month (8/1980)	20.56 °C	3.08 °C	41.27 mm
Max month (1980)	22.50 °C	4.25 °C	86.20 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	76.0	42.28	5^th/29
Average length	11.9	11.82	12^th–13^th/29
Average width	6.9	6.66	3^rd–7^th/29
Standard deviation of length	0.69	0.83	24^th–25^th/29
Standard deviation of width	0.47	0.37	5^th/29
Median length	11.9	11.87	13^th–14^th/29
Median width	6.9	6.67	4^th–7^th/29
Minimum length	10.4	10.08	8^th–10^th/29
Minimum width	5.9	5.93	14^th–15^th/29
Low length	10.7	10.58	11^th–14^th/29
Low width	6.2	6.10	12^th/29
High length	13.0	13.00	12^th–16^th/29
High width	7.6	7.19	2^nd/29
Max length	13.6	13.37	11^th–13^th/29
Max width	8.4	7.44	2^nd/29

Spore feature	Value	Commonalities
Ornamentation	O2	100% of collections
Perispore loosening	P0	68% of collections
Dextrinoidity	D2; D3	55% of collections; 82% of collections