Hebeloma.org: Collection HJB12576

Taxonomy

Collection 12576 (herbarium acc. no. ZT8082) is Hebeloma mesophaeum.

Description

Collecting details

Collection 12576 was collected by E. Horak on 7th August 1999 in Loveland Pass, East-7, Colorado, UNITED STATES (approx. 39.6636°N, 105.8792°W, altitude approximately 3750 m above sea level - Google maps). The ectomycorrhizal family Salicaceae (genus Salix) was present.
The surrounding habitat was described as alpine meadow, 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. 5.11: Wetlands (inland) – Alpine wetlands (inc. temporary waters from snowmelt).
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 ET (Polar, tundra).

Macroscopic description
Cortina present: yes.
Pileus: 25–35 mm diameter; shape umbonate; margin characters involute; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil yes.
Lamellae: attachment adnexed, emarginate; maximum depth not recorded; number of complete lamellae 40; tears absent; white fimbriate edge weak.
Stipe: 40 x 4–5 {median} x 4–5 {basal} mm; stipe Q 8.0–10.0; base cylindrical; floccosity fibrillose; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base yes; slenderness measure 12.6; smell cocoa; taste mild.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.

Microscopic description
Spores: shape ellipsoid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O1; P0; D1.
Basidia: 25.4–29.0 x 6.4–8.7 μm; ave. Q = 3.7; basidia spore nature not recorded.
Cheilocystidia: main shape lageniform, ventricose; special features many collapsed in exsiccata; Cheilocystidia Ratios: A/M = 1.03; A/B = 0.72; B/M = 1.44.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (8.1) 8.3–10.7 (10.9) 9.6 9.6 0.740
Width (µm) (5.1) 5.5–6.6 (6.7) 6.0 6.1 0.350
Q (1.28) 1.40–1.75 (1.78) 1.59 1.60 0.11

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length 39–51 (52) 45 45 4.61
Apex Width (3.9) 4.3–6.9 (7.2) 5.5 5.3 1.000
Median Width (4.3) 4.4–6.8 (7.1) 5.4 5.3 0.95
Basal Width 6.3–9.4 (9.8) 7.7 7.6 1.1

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(8.1) 8.3–10.7 (10.9)	9.6	9.6	0.740
Width (µm)	(5.1) 5.5–6.6 (6.7)	6.0	6.1	0.350
Q	(1.28) 1.40–1.75 (1.78)	1.59	1.60	0.11

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	39–51 (52)	45	45	4.61
Apex Width	(3.9) 4.3–6.9 (7.2)	5.5	5.3	1.000
Median Width	(4.3) 4.4–6.8 (7.1)	5.4	5.3	0.95
Basal Width	6.3–9.4 (9.8)	7.7	7.6	1.1

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1999) 7.17 °C -6.58 °C 55.15 mm
Collection month (8/1999) 16.03 °C 3.58 °C 97.32 mm
Max month (1999) 17.79 °C 4.08 °C 113.24 mm

	Max temp	Min temp	Precipitation
Annualised average (1999)	7.17 °C	-6.58 °C	55.15 mm
Collection month (8/1999)	16.03 °C	3.58 °C	97.32 mm
Max month (1999)	17.79 °C	4.08 °C	113.24 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	50.0	65.23	78^th–89^th/115
Average length	9.6	9.24	29^th–40^th/118
Average width	6.0	5.58	5^th–11^th/118
Standard deviation of length	0.74	0.61	18^th–21^st/110
Standard deviation of width	0.35	0.32	26^th–34^th/110
Median length	9.6	9.25	29^th–42^nd/110
Median width	6.1	5.60	5^th–7^th/110
Minimum length	8.1	7.89	39^th–43^rd/112
Minimum width	5.1	4.89	29^th–38^th/112
Low length	8.3	8.33	56^th–64^th/112
Low width	5.5	5.13	11^th–19^th/112
High length	10.7	10.20	24^th–30^th/112
High width	6.6	6.11	4^th–10^th/112
Max length	10.9	10.67	39^th–51^st/112
Max width	6.7	6.38	20^th–25^th/112

Spore feature	Value	Commonalities
Ornamentation	O1	99% of collections
Perispore loosening	P0	99% of collections
Dextrinoidity	D1	27% of collections