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Rubroboletus legaliae
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Rubroboletus legaliae

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Rubroboletus legaliae
Luční - Boletus legaliae 02.jpg
Scientific classification edit
Kingdom: Fungi
Division: Basidiomycota
Class: Agaricomycetes
Order: Boletales
Family: Boletaceae
Genus: Rubroboletus
Species:
R. legaliae
Binomial name
Rubroboletus legaliae
(Pilát & Dermek) Della Maggiora & Trassinelli (2015)
Synonyms
  • Boletus splendidus C.Martín (1894)
  • Boletus legaliae Pilát (1968)
  • Boletus satanoides sensu auct. mult.
  • Boletus spinari Hlaváček (2000)
Rubroboletus legaliae
View the Mycomorphbox template that generates the following list
pores on hymenium
cap is convex
hymenium is adnate
stipe is bare
spore print is olive-brown
ecology is mycorrhizal
edibility: poisonous

Rubroboletus legaliae, previously known as Boletus splendidus, B. satanoides, and B. legaliae is a basidiomycete fungus of the family Boletaceae. It is poisonous, with predominantly gastrointestinal symptoms, and is related to Rubroboletus satanas.

Boletus legaliae was described by Czech mycologist Albert Pilát in 1968. It is named after the French mycologist Marcelle Le Gal.

It's uncommon in Southern England, and Europe, and grows with oak (Quercus) and beech (Fagus) often on neutral to acid soils. It is considered vulnerable in the Czech Republic. In Britain, all of the boletes in the Satanas group are either very rare, endangered, or extinct.

Description

The cap is initially off-white, or coffee-coloured at the button stage. In mid life it often (but not always) turns a pale mouse grey. In old age the cap turns reddish, or what has been described as 'old rose'. It may reach 14 cm (5.5 in) in diameter. The stipe is stocky, with a narrow red reticulation (net pattern) on an orange ground at the apex. This orange ground colour fades gradually towards the midsection, making the red reticulation more pronounced. At the base the reticulation is absent, and the stipe turns dark vinaceous. Sometimes the stipe detail can be faint, or even absent when covered with earth or leaf litter. The pores are initially red, but have an overall orange colour when mature, and they bruise blue. The flesh turns pale blue on cutting / dark vinaceous in the stipe base. The flesh is said to smell of chicory.

Boletus splendidus as described by Charles-Édouard Martín in 1894 is a synonym. The description of Boletus satanoides was too vague to be ascribed to any actual species. Boletus legaliae was transferred to the genus Rubroboletus in 2015 by Marco Della Maggiora and Renzo Trassinelli.

Similar species

Rubroboletus satanas, found in broad-leaved woodland on calcareous soil, has a whiter cap that turns brownish-ochre, lacking the overall reddish tones in maturity. It has a more nauseating smell, and it is poisonous, possibly deadly. Molecular study of the holotype of Rubroboletus spinari has demonstrated its conspecifity with Rubroboletus legaliae.

Media related to Rubroboletus legaliae at Wikimedia Commons


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