Boletus rubellus - Ruby Bolete

Boletus rubellus - Ruby Bolete

Taxonomy

Phylum: Basidiomycota

Class: Agaricomycetes

Order: Boletales

Family: Boletaceae

Boletus rubellus, the Ruby Bolete, is a very pretty little mushroom, and usually it fruits in groups or rows. It is frequently found on woodland edges, in clearings and in low-neutrient grassland in parks and gardens beneath deciduous trees, particularly oaks.

Although edible, these little mushrooms are prone to maggot infestation - and in any case they are not particularly common and so best left for others to enjoy.

Identification guide

Cap of Boletus rubellus, the Ruby Bolete

Cap

3-8cm across, broadly convex and then flattening, occasionally with a slight central depression; scarlet red at first, fading to an olivaceous red at maturity and usually with a yellowish marginal band; surface dry and velvety.

Pores and stem of Boletus rubellus, the Ruby Bolete

Tubes and Pores

The tubes are dull yellow and terminate in lemon-yellow pores that become greenish with age.

When bruised, the pores and tubes slowly turn blue.

Stem

4 to 8cm long and 4 to 8mm diameter, cylindrical; bright yellow at the apex, and progressively more red towards the base.

The stem flesh is pale yellow and turns blue when cut.

Spore print

Olive-brown.

Odour/taste

Faint pleasant smell; no significant taste.

Habitat

On soil beneath trees, notably beech and less commonly oak.

Season

Early July to the end of September.

Occurrence

Occasional; usually in groups of typically 3 to 10.

Similar species

This is one of a complex of similar species that can be separated only by microscopic analysis (and even then determination can be far from certain).