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Boletus torosusPhoto: ABFG libraryBack to the BAP list |
DescriptionGeneral: Large heavy fruit body, bright yellow when young, blueing when touched, reddish-brown with age; solitary or clustered on calcareous soil with oak and other broadleaf trees.Dimensions: Cap 8-18cm dia; stem 5-12cm tall x 4-7cm dia. Cap: At first bright yellow, becoming more reddish-brown, vinaceous or greyish-brown with age, rapidly blue where touched; at first hemispherical then convex, smooth. Flesh yellow, bright blue when cut, fading to brown. Pores: At first yellow, then orange to blood-red. Tubes concolorous, broadly adnate. Stem: At first with yellow net then red with age; flesh with vinaceous tinge at the base; bulbous. |
Spores: Olivaceous-brown, narrowly ellipsoid or fusiform with droplets, 10.5-14.5 x 4.5-5.5 µm. Basidia 4 spored; cystidia sparse, fusiform. Odour: Fruity. Taste: Not distinctive. Poisonous. Chemical Tests: None. Occurrence: Summer to very early Autumn. |
| Qualifying criterion: 4.6: very rare (less than 5 sites) with evidence of ongoing threat |
| Justification: only been found for the first time since 1960 but known to be threatened at the sites listed |
| Threats: felling of host trees, trampling, compaction, track maintenance, eutrophication, overgrowth |
| Action Required: Site protection and monitoring against habitat loss and degradation; taxonomic research |
Statistics:UK (excluding NI & CI) fungus records |
Total records: 14 |
| Earliest recording: 1982 | |
| Latest recording: 2003 | |
| Vice Counties and (frequency): 3(8); 10(2); 11(4); | |
| Pre-1960: 0 records | |
| NBN Gateway grid map | Post-1960: 14 records |