Hebeloma.org: Collection HJB1000402

Taxonomy

Collection 1000402 (herbarium acc. no. FLAS-F-19345) is the holotype of Hebeloma subaustrale.

Description

Collecting details

Collection 1000402 was collected by G.F. Weber, det: W.A. Murrill on 30th October 1941 in Gainesville, Alachua Co., Florida, UNITED STATES (approx. 29.6516°N, 82.3248°W, altitude approximately 50 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as lawn with a substrate of grassy, shady 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. 14.5: Urban Areas.
According to the GPS data the collection was in the Southeast US conifer savannas 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 Grasslands, Savannas & Shrublands) and Koppen climate code Cfa (Temperate, no dry season, hot summer).

Macroscopic description
Cortina present: no.
Pileus: 30–40 mm diameter; shape convex; margin characters smooth; viscosity tacky when moist; spotting not recorded; hygrophanous no; colour variation unicolor; with colour at centre not recorded; and colour at margin not recorded; with remains of universal veil not recorded.
Lamellae: attachment emarginate; maximum depth not recorded; number of complete lamellae 88; tears not recorded; white fimbriate edge present.
Stipe: 30 x 5 {median} x 5 {basal} mm; stipe Q 6.0; base cylindrical; floccosity not recorded; rooting not recorded; mycelial chords not recorded.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base not recorded; slenderness measure 6.0; smell raphanoid; taste raphanoid.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.

Microscopic description
Spores: shape amygdaloid; colour through microscope yellow; guttulate no; papillate no; Spore Code: O1; P0; P1; D2.
Basidia: 20.6–27.9 x 6.2–6.7 μm; ave. Q = 3.8; basidia spore nature not recorded.
Cheilocystidia: main shape clavate, gently clavate, clavate-stipitate, cylindrical; special features grotesque, irregular, many collapsed in exsiccata, septa; Cheilocystidia Ratios: A/M = 1.38; A/B = 1.06; B/M = 1.33.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: caulocystidia maximum length 80 μm.

Spore (min) 5%-95% (max) mean median S.D.
Length (µm) (7.7) 8.4–9.8 (10.3) 9.0 9.0 0.510
Width (µm) (4.5) 4.6–5.2 (5.4) 4.9 4.8 0.180
Q (1.54) 1.65–2.03 (2.15) 1.85 1.88 0.12

Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D.
Length 28–40 (41) 33 33 3.95
Apex Width (4.0) 4.5–6.8 (6.9) 5.7 5.8 0.850
Median Width (3.2) 3.3–5.7 (5.8) 4.3 4.1 0.81
Basal Width 4.3–6.9 (7.0) 5.6 5.5 1.06

Spore	(min) 5%-95% (max)	mean	median	S.D.
Length (µm)	(7.7) 8.4–9.8 (10.3)	9.0	9.0	0.510
Width (µm)	(4.5) 4.6–5.2 (5.4)	4.9	4.8	0.180
Q	(1.54) 1.65–2.03 (2.15)	1.85	1.88	0.12

Cheilocystidium (µm)	(min) 5%-95% (max)	mean	median	S.D.
Length	28–40 (41)	33	33	3.95
Apex Width	(4.0) 4.5–6.8 (6.9)	5.7	5.8	0.850
Median Width	(3.2) 3.3–5.7 (5.8)	4.3	4.1	0.81
Basal Width	4.3–6.9 (7.0)	5.6	5.5	1.06

Temperature calculation
Max temp Min temp Precipitation
Annualised average (1941) --- °C --- °C --- mm
Collection month (10/1941) --- °C --- °C --- mm
Max month (1941) --- °C --- °C --- mm

	Max temp	Min temp	Precipitation
Annualised average (1941)	--- °C	--- °C	--- mm
Collection month (10/1941)	--- °C	--- °C	--- mm
Max month (1941)	--- °C	--- °C	--- 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	63.0	74.43	4^th/7
Average length	9.0	9.31	6^th/7
Average width	4.9	5.00	6^th/7
Standard deviation of length	0.51	0.66	5^th/7
Standard deviation of width	0.18	0.27	7^th/7
Median length	9.0	9.39	6^th/7
Median width	4.8	4.99	6^th/7
Minimum length	7.7	7.56	3^rd/7
Minimum width	4.5	4.37	4^th/7
Low length	8.4	8.17	2^nd/7
Low width	4.6	4.59	4^th–5^th/7
High length	9.8	10.21	6^th/7
High width	5.2	5.44	6^th–7^th/7
Max length	10.3	10.59	5^th–6^th/7
Max width	5.4	5.69	7^th/7

Spore feature	Value	Commonalities
Ornamentation	O1	71% of collections
Perispore loosening	P0; P1	28% of collections; 100% of collections
Dextrinoidity	D2	57% of collections