Hebeloma.org: Collection HJB1000387

Taxonomy

Collection 1000387 (herbarium acc. no. CBM-FB-5368) is the holotype of Hebeloma luchuense.

Description

Collecting details

Collection 1000387 was collected by T. Fukiharu (1171) on 3rd January 1983 in Ryukyus, Iriomote Island, Yaeyama-gun, , Okinawa, JAPAN (approx. 24.2722°N, 123.8663°E, altitude approximately 50 m above sea level - Google maps). The ectomycorrhizal family Fagaceae (genera Castanopsis and Quercus) was present.
The surrounding habitat was described as woodland with a substrate of nutrient-enriched, urea-treated 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. 1.4: Forest – Temperate.
According to the GPS data the collection was in the Nansei Islands subtropical evergreen 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: Tropical & Subtropical Moist Broadleaf Forests) and Koppen climate code Af (Tropical, rainforest).

Macroscopic description
Cortina present: yes.
Pileus: 15–40 mm diameter; shape convex, umbonate weakly; margin characters involute; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation two-colour; with colour at centre umber, dark brick; and colour at margin cream; with remains of universal veil yes.
Lamellae: attachment adnexed, emarginate; maximum depth up to 2 mm; number of complete lamellae 60; tears not recorded; white fimbriate edge weak.
Stipe: 30–60 x 3–7 {median} x 5–10 {basal} mm; stipe Q 8.6–10.0; base bulbous; floccosity fibrillose, floccose; rooting yes; mycelial chords not recorded.
Context: texture firm; stipe interior hollow, stuffed; stipe flesh discolouring from base not recorded; slenderness measure 16.4; smell not recorded; taste mild.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.

Microscopic description
Spores: shape amygdaloid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O1; O2; P0; D0; D1.
Basidia: 20.0–27.5 x 5.8–7.1 μm; ave. Q = 3.6; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical; special features septa, short; Cheilocystidia Ratios: A/M = 1.01; A/B = 0.97; B/M = 1.06.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 200 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis oblong, ovate, spherical, utriform up to 20 μm wide.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (7.6) 7.8–9.5 (10.3) 8.6 8.6 0.570
Width (µm) (4.3) 4.6–5.3 (5.8) 4.9 4.9 0.250
Q (1.50) 1.56–1.93 (2.14) 1.75 1.75 0.12

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length (11) 12–21 (22) 16 15 3.19
Apex Width 3.5–5.1 4.2 4.1 0.570
Median Width (3.0) 3.1–5.2 (5.6) 4.2 4.3 0.69
Basal Width (2.8) 3.3–5.7 (6.0) 4.4 4.4 0.84

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(7.6) 7.8–9.5 (10.3)	8.6	8.6	0.570
Width (µm)	(4.3) 4.6–5.3 (5.8)	4.9	4.9	0.250
Q	(1.50) 1.56–1.93 (2.14)	1.75	1.75	0.12

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	(11) 12–21 (22)	16	15	3.19
Apex Width	3.5–5.1	4.2	4.1	0.570
Median Width	(3.0) 3.1–5.2 (5.6)	4.2	4.3	0.69
Basal Width	(2.8) 3.3–5.7 (6.0)	4.4	4.4	0.84

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1983) 26.02 °C 21.10 °C 191.42 mm
Collection month (1/1983) 20.02 °C 15.58 °C 220.96 mm
Max month (1983) 31.73 °C 26.77 °C 370.45 mm

	Max temp	Min temp	Precipitation
Annualised average (1983)	26.02 °C	21.10 °C	191.42 mm
Collection month (1/1983)	20.02 °C	15.58 °C	220.96 mm
Max month (1983)	31.73 °C	26.77 °C	370.45 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	103.0	54.33	1^st/6
Average length	8.6	8.80	4^th–5^th/6
Average width	4.9	5.00	4^th–5^th/6
Standard deviation of length	0.57	0.50	3^rd/6
Standard deviation of width	0.25	0.23	2^nd/6
Median length	8.6	8.83	4^th–5^th/6
Median width	4.9	5.02	4^th/6
Minimum length	7.6	7.78	4^th/6
Minimum width	4.3	4.55	5^th/6
Low length	7.8	8.03	4^th/6
Low width	4.6	4.68	4^th/6
High length	9.5	9.53	3^rd/6
High width	5.3	5.30	3^rd–4^th/6
Max length	10.3	9.97	3^rd–4^th/6
Max width	5.8	5.67	2^nd–3^rd/6

Spore feature	Value	Commonalities
Ornamentation	O1; O2	66% of collections; 83% of collections
Perispore loosening	P0	100% of collections
Dextrinoidity	D0; D1	33% of collections; 83% of collections