Hebeloma.org: Collection HJB18668

Taxonomy

Collection 18668 (herbarium acc. no. CMMF020766) is Hebeloma eburneum.

Description

Collecting details

Collection 18668 was collected by Y. Lamoureux on 10th October 2009 in Saint-Thomas, Quebec, CANADA (approx. 45.49°N, 73.5036°W, altitude approximately 30 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as not recorded.
According to the GPS data the collection was in the Eastern Great Lakes lowland 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: 32–38 mm diameter; shape convex, umbonate broadly; margin characters involute, smooth; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation unicolor; with colour at centre pale cream; and colour at margin not recorded; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 78; tears visible with naked eye; white fimbriate edge present.
Stipe: 29–37 x 6–9 {median} x 9–11 {basal} mm; stipe Q 3.1–5.3; base clavate; floccosity pruinose at apex; rooting no; mycelial chords no.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base no; slenderness measure 4.1; smell not recorded; 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 weak; Spore Code: O3; P0; P1; D1.
Basidia: 27.6–29.3 x 8.2–8.7 μm; ave. Q = 3.4; basidia spore nature not recorded.
Cheilocystidia: main shape clavate-stipitate; special features conglutinate, septa; Cheilocystidia Ratios: A/M = 1.94; A/B = 2.03; B/M = 1.01.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (9.7) 10.4–12.7 (13.2) 11.4 11.4 0.740
Width (µm) (5.9) 6.1–7.6 (7.8) 6.6 6.5 0.460
Q (1.38) 1.49–1.93 (2.01) 1.73 1.76 0.15

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length 49–72 60 60 7.21
Apex Width (7.3) 7.6–10.4 8.9 9.1 0.990
Median Width (3.5) 3.7–5.9 (6.9) 4.7 4.5 0.87
Basal Width (2.4) 2.9–5.9 (6.1) 4.7 5.0 1.07

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(9.7) 10.4–12.7 (13.2)	11.4	11.4	0.740
Width (µm)	(5.9) 6.1–7.6 (7.8)	6.6	6.5	0.460
Q	(1.38) 1.49–1.93 (2.01)	1.73	1.76	0.15

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	49–72	60	60	7.21
Apex Width	(7.3) 7.6–10.4	8.9	9.1	0.990
Median Width	(3.5) 3.7–5.9 (6.9)	4.7	4.5	0.87
Basal Width	(2.4) 2.9–5.9 (6.1)	4.7	5.0	1.07

Temperature calculation
Max temp Min temp Precipitation
Annualised average (2009) 11.94 °C 1.29 °C 79.00 mm
Collection month (10/2009) 12.34 °C 3.15 °C 98.92 mm
Max month (2009) 26.34 °C 15.05 °C 115.87 mm

	Max temp	Min temp	Precipitation
Annualised average (2009)	11.94 °C	1.29 °C	79.00 mm
Collection month (10/2009)	12.34 °C	3.15 °C	98.92 mm
Max month (2009)	26.34 °C	15.05 °C	115.87 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	64.0	51.46	17^th–18^th/90
Average length	11.4	11.78	63^rd–68^th/92
Average width	6.6	6.54	31^st–42^nd/92
Standard deviation of length	0.74	0.74	44^th–47^th/90
Standard deviation of width	0.46	0.37	19^th–21^st/90
Median length	11.4	11.80	65^th–69^th/90
Median width	6.5	6.54	42^nd–53^rd/90
Minimum length	9.7	10.23	78^th–80^th/92
Minimum width	5.9	5.78	25^th–33^rd/92
Low length	10.4	10.67	62^nd–69^th/92
Low width	6.1	5.99	27^th–34^th/92
High length	12.7	12.89	54^th–58^th/92
High width	7.6	7.12	7^th–11^th/92
Max length	13.2	13.47	55^th–56^th/92
Max width	7.8	7.43	19^th–25^th/92

Spore feature	Value	Commonalities
Ornamentation	O3	88% of collections
Perispore loosening	P0; P1	31% of collections; 93% of collections
Dextrinoidity	D1	81% of collections