Taxonomy
Collection 1000583 (herbarium acc. no. FLAS-F-17941) is Hebeloma albidulum. It is the holotype of heterotypic synonym Cortinarius albiceps Murrill (1942).Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 1000583 was collected by W.A. Murrill on 15th July 1938 in Alachua, Gainesville; Magnesia Springs , Florida, UNITED STATES (29.5825°N, 82.1492°W, altitude approximately 40 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as deciduous woodland with a substrate of litter, 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 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).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: no.
Pileus: 20–30 mm diameter; shape convex; margin characters involute, smooth; viscosity tacky when moist; spotting not recorded; hygrophanous not recorded; 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 60; tears not recorded; white fimbriate edge not recorded.
Stipe: 40 x 5 {median} x 12 {basal} mm; stipe Q 8.0; base bulbous; floccosity floccose at apex, velute; rooting no; mycelial chords not recorded.
Context: texture firm; stipe interior not recorded; stipe flesh discolouring from base no; slenderness measure 16.0; smell none; taste mild.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, limoniform; colour through microscope grey yellow, yellow pale; guttulate not recorded; papillate very strongly; Spore Code: O3; O4; P3; D2; D3.
Basidia: 19.9–27.2 x 5.9–7.9 μm; ave. Q = 3.5; basidia spore nature not recorded.
Cheilocystidia: main shape gently clavate, clavate-lageniform or clavate-ventricose; special features many collapsed in exsiccata; Cheilocystidia Ratios: A/M = 1.34; A/B = 1.50; B/M = 0.95.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) 9.3–10.9 (11.6) 10.0 10.0 0.470 Width (µm) (5.3) 5.5–7.1 (7.7) 6.5 6.5 0.500 Q (1.26) 1.38–1.78 (1.88) 1.56 1.55 0.13 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (36) 39–51 (54) 45 45 4.25 Apex Width 5.5–7.7 (7.9) 6.3 6.3 0.700 Median Width (3.3) 3.7–5.9 (6.4) 4.8 4.8 0.83 Basal Width 2.9–5.6 (6.3) 4.4 4.6 0.95
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1938) --- °C --- °C --- mm Collection month (7/1938) --- °C --- °C --- mm Max month (1938) --- °C --- °C --- mm
- arrow_drop_downarrow_drop_upAnalyse this collection
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 | 59.0 | 74.28 | 18th–20th/25 |
| Average length | 10.0 | 11.06 | 25th/25 |
| Average width | 6.5 | 6.84 | 22nd–25th/25 |
| Standard deviation of length | 0.47 | 0.65 | 24th/25 |
| Standard deviation of width | 0.5 | 0.39 | 3rd/25 |
| Median length | 10.0 | 11.10 | 25th/25 |
| Median width | 6.5 | 6.85 | 22nd–25th/25 |
| Minimum length | 9.3 | 9.50 | 15th–19th/25 |
| Minimum width | 5.3 | 5.87 | 25th/25 |
| Low length | 9.3 | 10.02 | 24th/25 |
| Low width | 5.5 | 6.22 | 25th/25 |
| High length | 10.9 | 12.12 | 25th/25 |
| High width | 7.1 | 7.47 | 20th–23rd/25 |
| Max length | 11.6 | 12.62 | 25th/25 |
| Max width | 7.7 | 7.76 | 15th–16th/25 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3; O4 | 96% of collections; 80% of collections |
| Perispore loosening | P3 | 100% of collections |
| Dextrinoidity | D2; D3 | 8% of collections; 88% of collections |