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Geastrum corollinumPhoto: Phill ClaytonBack to the BAP list |
DescriptionGeneral: Pale greyish-brown bulb surmounting a darker greyish-brown star-shaped base, which raises the spore sac above the surrounding substrate when damp; strongly hygroscopic; solitary or in small groups in deciduous woodlands or hedgerows on well-drained base rich soil.Dimensions: Unopened bulb 1.0-2.5cm dia; expanded 1.5-6.0cm dia. Fruit Body: Exoperidium greyish-brown splitting into 6-10 rays; endoperidium greyish-brown or pale brown, sessile, sub-spherical, smooth or minutely pruinose; peristome fibrillose and distinctly delimited. Gleba: Dark brown. |
Spores: 3.5-4.5µm, spherical, verrucose with guttule. Basidia not seen. Odour: Not distinctive. Taste: Not distinctive. Chemical Tests: None. Occurrence: Autumn. |
| Qualifying criterion: 4.7: very rare species with rstricted range |
| Justification: evidence of decline by more than 50% pre- and post-1960 |
| Threats: habitat destruction, roadside site disturbance due to digging, tipping etc |
| Action Required: Survey and monitoring; protection against habitat loss and degradation; site liaison and management. |
Statistics:UK (excluding NI & CI) fungus records
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Total records: 50 |
| Earliest recording: 1794 | |
| Latest recording: 2006 | |
| Vice Counties and (frequency): 10(2); 15(2); 16(1); 20(1); 22(5); 25(1); 26(4); 27(8); 28(6); 36(3); 37(1); 38(3); 39(1); 52(2); 55(3); 56(1); 62(1); 65(3); 66(1); 82(1) | |
| Pre-1960: 33 records | |
| NBN Gateway grid map | Post-1960: 17 records |