Boletus rhodoxanthus    (Krombh.) Kallenb. 

common name(s) : Ruddy Bolete 

New classification: Basidiomycota/Agaricomycotina/Agaricomycetes/Agaricomycetidae/Boletales/Boletaceae  
Former classification: Basidiomycota/Homobasidiomycetes/Agaricomycetideae/Boletales/Boletaceae/Boletoideae [ section:Luridi sub-section:Satanas]  

synonyms: Rubroboletus rhodoxanthus, Boletus sanguineus-rhodoxanthus, Boletus purpureus ss.Fr. 
(unconfirmed synonyms: Suillelus rhodoxanthus)  

edibility : poisonous

photo gallery of  Boletus rhodoxanthus
photo gallery of  Boletus rhodoxanthus potential confusions with  Boletus rhodoxanthus toxicity of Boletus rhodoxanthus genus Boletus  

The cap is whitish with yellow or pink shades, even pinker towards the margin, sturdy, convex then expanded. The cap surface is covered with a grey-pink topping, vanishing when touched.

The stem is stout, club-shaped, bright yellow and vinaceous red at the base. It is covered with a purple red network on a yellow-orange background, made of elongated and dotted cells, vanishing downwards to the greenish-grey base.

The flesh is firm, lemon yellow, but reddish at the base, turning light blue moderately in the cap when in contact with air, before becoming yellow; its taste is sweet; the odour is strong and mushroomy;

The tubes are yellow, slightly turning blue when exposed to air.

The pores are small, golden yellow then bright blood red, turning blue when pressed. The spore print is olive brown.

It grows in broad-leaved woods, on a rather calcareous soil, essentially with oak, beech.

The fruiting period takes place from July to November.
Dimensions: width of cap approximately 15 cm (between 5 and 25 cm)
  height of stem approximately 10 cm (between 5 and 16 cm)
  thickness of stem (at largest section) approximately 40 mm (between 15 and 80 mm)
  spores : 10-16 x 4,5-5 microns, almost spindle-shaped

Distinctive features : pinkish cap covered with a whitish-pink frosty topping; stem covered with a blood-red network; yellow pores becoming bright red, tuning blue when pressed

Boletus rhodoxanthus is rare and localised in the forest of Rambouillet, and is quite rare, more generally speaking .
here should be the distribution map of Boletus rhodoxanthus in the forest of Rambouillet
Above : distribution map of Boletus rhodoxanthus in the forest of Rambouillet



page updated on 14/01/18