Taxonomy
Collection 19597 (herbarium acc. no. E 00204810) is Hebeloma parvisporum. It is the holotype of heterotypic synonym Psathyrella splendens Corner (1994) ["1993"].Description
- arrow_drop_downarrow_drop_upCollecting details
Collection 19597 was collected by E.J.H. Corner on 9th March 1930 in Pierce Reservoir, SINGAPORE (approx. 1.3712°N, 103.826°E, altitude approximately 25 m above sea level - Google maps). No ectomycorrhizal plants were recorded.
The surrounding habitat was described as tropical woodland with a substrate of 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. 1.5: Forest – Subtropical/tropical dry.
According to the GPS data the collection was in the Peninsular Malaysian rain 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).
- arrow_drop_downarrow_drop_upMacroscopic description
Cortina present: yes.
Pileus: 50–150 mm diameter; shape convex; margin characters involute; viscosity tacky when moist; spotting no; hygrophanous no; colour variation two-colour; with colour at centre not recorded; and colour at margin ochraceous; with remains of universal veil yes.
Lamellae: attachment adnate, decurrent tooth, emarginate; maximum depth up to 8 mm; number of complete lamellae 85; tears visible with x10 lens; white fimbriate edge present.
Stipe: 70–180 x 5–18 {median} x 6–25 {basal} mm; stipe Q 10.0–14.0; base bulbous; floccosity fibrillose, pruinose at apex; rooting yes; mycelial chords no.
Context: texture firm; stipe interior hollow; stipe flesh discolouring from base yes; slenderness measure 15.8; smell not recorded; taste not recorded.
Spore deposit colour: analysis not yet complete.
Exsiccata: analysis not yet complete.
- arrow_drop_downarrow_drop_upMicroscopic description
Spores: shape amygdaloid, ellipsoid; colour through microscope yellow brown; guttulate no; papillate no; Spore Code: O3; O4; P3; D3.
Basidia: 15.5–19.1 x 5.6–6.7 μm; ave. Q = 2.8; basidia spore nature not recorded.
Cheilocystidia: main shape capitate-stipitate, clavate-stipitate, spathulate-stipitate; special features not recorded; Cheilocystidia Ratios: A/M = 3.28; A/B = 3.24; B/M = 1.03.
Pleurocystidia: no.
Ixocutis: analysis not yet complete.
Caulocystidia: analysis not yet complete.
Spore (min) 5%-95% (max) mean median S.D. Length (µm) (6.8) 6.9–8.0 (8.1) 7.4 7.5 0.300 Width (µm) (5.3) 5.6–6.3 (6.5) 5.9 5.9 0.250 Q (1.20) 1.21–1.31 (1.34) 1.25 1.24 0.04 Cheilocystidium (µm) (min) 5%-95% (max) mean median S.D. Length (39) 40–52 (53) 46 46 4.42 Apex Width (5.3) 5.8–11.4 (13.6) 8.3 8.1 1.810 Median Width (0.9) 1.5–4.5 (4.6) 3.0 2.9 0.97 Basal Width 1.6–3.8 (5.3) 2.9 2.9 0.88
- arrow_drop_downarrow_drop_upTemperature calculation
Max temp Min temp Precipitation Annualised average (1930) --- °C --- °C --- mm Collection month (3/1930) --- °C --- °C --- mm Max month (1930) --- °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 | 50.0 | 55.71 | 4th/7 |
| Average length | 7.4 | 7.21 | 2nd/7 |
| Average width | 5.9 | 5.81 | 2nd–4th/7 |
| Standard deviation of length | 0.3 | 0.39 | 6th/7 |
| Standard deviation of width | 0.25 | 0.33 | 6th/7 |
| Median length | 7.5 | 7.27 | 2nd/7 |
| Median width | 5.9 | 5.83 | 2nd–5th/7 |
| Minimum length | 6.8 | 6.34 | 1st–2nd/7 |
| Minimum width | 5.3 | 4.96 | 3rd/7 |
| Low length | 6.9 | 6.70 | 2nd/7 |
| Low width | 5.6 | 5.34 | 1st–2nd/7 |
| High length | 8.0 | 7.79 | 2nd/7 |
| High width | 6.3 | 6.24 | 2nd–5th/7 |
| Max length | 8.1 | 8.37 | 5th–6th/7 |
| Max width | 6.5 | 6.54 | 3rd–6th/7 |
| Spore feature | Value | Commonalities |
|---|---|---|
| Ornamentation | O3; O4 | 100% of collections; 85% of collections |
| Perispore loosening | P3 | 100% of collections |
| Dextrinoidity | D3 | 100% of collections |