Hebeloma.org: Collection HJB13285

Taxonomy

Collection 13285 is Hebeloma geminatum.

Description

Collecting details

Collection 13285 was collected by M. Todoroska on 27th September 2009 in Paradis Dune near Nida, Curonian Spit, LITHUANIA (55.3004°N, 20.9892°E, altitude approximately 0 m above sea level - Google maps). The ectomycorrhizal families Betulaceae (genus Betula), Pinaceae (genus Pinus) and Salicaceae (genus Populus) were present.
The surrounding habitat was described as mixed dune woodland pathside with a substrate of acidic, grassy 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. 13.3: Coastal Sand Dunes.
According to the GPS data the collection was in the Koppen climate code Dfb (Cold, no dry season, warm summer).

Macroscopic description
Cortina present: no.
Pileus: up to 24 mm diameter; shape umbonate broadly; margin characters not recorded; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre ochraceous; and colour at margin pale yellow; with remains of universal veil no.
Lamellae: attachment emarginate; maximum depth up to 2 mm; number of complete lamellae 64; tears visible with x10 lens; white fimbriate edge not recorded.
Stipe: 28 x 7 {median} x 11 {basal} mm; stipe Q 4.0; base clavate; floccosity floccose, pruinose; rooting no; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base no; slenderness measure 4.7; smell none; 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: O2; O3; P1; D1.
Basidia: 28.9–29.0 x 7.3 μm; ave. Q = 4.0; basidia spore nature not recorded.
Cheilocystidia: main shape clavate-stipitate; special features conglutinate not; Cheilocystidia Ratios: A/M = 1.96; A/B = 2.35; B/M = 0.85.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) 9.4–12.3 (12.9) 10.7 10.4 0.920
Width (µm) (5.2) 5.4–6.1 (6.3) 5.6 5.6 0.240
Q (1.70) 1.73–2.09 (2.21) 1.91 1.87 0.13

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length 41–53 (54) 46 44 4.91
Apex Width (7.3) 7.4–9.3 (10.7) 8.3 8.4 0.670
Median Width 3.5–4.5 3.9 3.7 0.47
Basal Width (2.6) 2.7–4.0 3.3 3.3 0.57

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	9.4–12.3 (12.9)	10.7	10.4	0.920
Width (µm)	(5.2) 5.4–6.1 (6.3)	5.6	5.6	0.240
Q	(1.70) 1.73–2.09 (2.21)	1.91	1.87	0.13

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	41–53 (54)	46	44	4.91
Apex Width	(7.3) 7.4–9.3 (10.7)	8.3	8.4	0.670
Median Width	3.5–4.5	3.9	3.7	0.47
Basal Width	(2.6) 2.7–4.0	3.3	3.3	0.57

Temperature calculation
Max temp Min temp Precipitation
Annualised average (2009) 10.84 °C 5.13 °C 63.78 mm
Collection month (9/2009) 18.43 °C 11.88 °C 56.29 mm
Max month (2009) 21.58 °C 14.68 °C 117.00 mm

	Max temp	Min temp	Precipitation
Annualised average (2009)	10.84 °C	5.13 °C	63.78 mm
Collection month (9/2009)	18.43 °C	11.88 °C	56.29 mm
Max month (2009)	21.58 °C	14.68 °C	117.00 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	21.0	60.81	31^st/32
Average length	10.7	10.35	5^th–8^th/32
Average width	5.6	5.82	26^th–27^th/32
Standard deviation of length	0.92	0.70	3^rd/32
Standard deviation of width	0.24	0.32	27^th/32
Median length	10.4	10.39	15^th/32
Median width	5.6	5.83	25^th–28^th/32
Minimum length	9.4	8.73	3^rd–4^th/32
Minimum width	5.2	5.09	7^th–14^th/32
Low length	9.4	9.21	7^th–10^th/32
Low width	5.4	5.35	10^th–14^th/32
High length	12.3	11.39	2^nd/32
High width	6.1	6.33	23^rd–26^th/32
Max length	12.9	12.00	3^rd–4^th/32
Max width	6.3	6.61	26^th–27^th/32

Spore feature	Value	Commonalities
Ornamentation	O2; O3	45% of collections; 96% of collections
Perispore loosening	P1	93% of collections
Dextrinoidity	D1	87% of collections