Hebeloma.org: Collection HJB1000382

Taxonomy

Collection 1000382 (herbarium acc. no. TNSF 182343) is the holotype of Hebeloma radicosoides.

Description

Collecting details

Collection 1000382 was collected by Y. Murakami (647) on 17th October 1983 in foot of Mt. Sasama, Sekinotsu, Otsu City, Kansai, JAPAN (approx. 35.1688°N, 138.136°E, altitude approximately 400 m above sea level - Google maps). The ectomycorrhizal families Pinaceae (genus Pinus) and Fagaceae (genus Quercus) were present.
The surrounding habitat was described as mixed 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. 1.4: Forest – Temperate.
According to the GPS data the collection was in the Taiheiyo montane deciduous 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 Cfa (Temperate, no dry season, hot summer).

Macroscopic description
Cortina present: yes.
Pileus: 5–15 mm diameter; shape convex, umbonate broadly, umbonate strongly; margin characters not recorded; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation not recorded; with colour at centre cream, warm buff; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment adnexed, emarginate; maximum depth not recorded; number of complete lamellae 120; tears not recorded; white fimbriate edge weak.
Stipe: 2–10 x 1 {median} x 1–2 {basal} mm; stipe Q 2.5–6.7; base clavate, cylindrical; floccosity floccose at apex, pruinose at apex; rooting not recorded; mycelial chords not recorded.
Context: texture firm; stipe interior stuffed; stipe flesh discolouring from base not recorded; slenderness measure 2.8; smell earthy, sweet; taste bitter.
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: O2; P0; P1; D2.
Basidia: 23.7–24.0 x 5.6–6.1 μm; ave. Q = 4.1; basidia spore nature not recorded.
Cheilocystidia: main shape cylindrical; special features septa; Cheilocystidia Ratios: A/M = 0.99; A/B = 1.02; B/M = 1.00.
Pleurocystidia: no.
Ixocutis: epicutis thickness (measured from exsiccata) 250 μm; ixocutis maximum hyphae width 7 μm; ixocutis hyphae encrustation yes; shape of trama elements beneath subcutis cylindrical, oblong, ovate, thickly sausage-shaped up to 24 μm wide.
Caulocystidia: analysis not yet complete.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (8.3) 8.9–10.3 (10.6) 9.6 9.7 0.480
Width (µm) (4.4) 5.1–6.0 (6.1) 5.5 5.6 0.330
Q (1.62) 1.65–1.86 (1.97) 1.75 1.74 0.08

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length 17–26 (27) 21 22 3.26
Apex Width 4.2–6.6 (7.0) 5.1 5.0 0.930
Median Width (4.4) 4.5–6.3 (6.6) 5.1 5.0 0.71
Basal Width (3.9) 4.1–5.9 5.1 4.9 0.73

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(8.3) 8.9–10.3 (10.6)	9.6	9.7	0.480
Width (µm)	(4.4) 5.1–6.0 (6.1)	5.5	5.6	0.330
Q	(1.62) 1.65–1.86 (1.97)	1.75	1.74	0.08

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	17–26 (27)	21	22	3.26
Apex Width	4.2–6.6 (7.0)	5.1	5.0	0.930
Median Width	(4.4) 4.5–6.3 (6.6)	5.1	5.0	0.71
Basal Width	(3.9) 4.1–5.9	5.1	4.9	0.73

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1983) 16.48 °C 6.89 °C 169.53 mm
Collection month (10/1983) 18.29 °C 8.96 °C 172.84 mm
Max month (1983) 27.25 °C 19.05 °C 350.12 mm

	Max temp	Min temp	Precipitation
Annualised average (1983)	16.48 °C	6.89 °C	169.53 mm
Collection month (10/1983)	18.29 °C	8.96 °C	172.84 mm
Max month (1983)	27.25 °C	19.05 °C	350.12 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	52.0	76.75	5^th/8
Average length	9.6	9.04	1^st/8
Average width	5.5	5.15	1^st/8
Standard deviation of length	0.48	0.52	5^th–6^th/8
Standard deviation of width	0.33	0.29	2^nd/8
Median length	9.7	9.09	1^st/8
Median width	5.6	5.16	1^st/8
Minimum length	8.3	7.69	1^st/8
Minimum width	4.4	4.36	3^rd–4^th/8
Low length	8.9	8.15	1^st/8
Low width	5.1	4.69	1^st/8
High length	10.3	9.79	2^nd/8
High width	6.0	5.58	1^st/8
Max length	10.6	10.09	1^st/8
Max width	6.1	5.80	1^st/8

Spore feature	Value	Commonalities
Ornamentation	O2	100% of collections
Perispore loosening	P0; P1	62% of collections; 87% of collections
Dextrinoidity	D2	37% of collections