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Suillus granulatus

 
This bolete appears under various kinds of pine trees, often in large groups. The pores of young specimens release milky droplets. The cap is sticky, especially in wet weather.

Identification guide

Cap

Cinnamon brown to orange brown the sticky caps grown to between 4 and 10 cm in diameter and remain convex.

The cap flesh is pale yellow and soft; it does not change colour when the cap is cut.

Tubes and Pores

A characteristic feature of this species is the presence of milky droplets that are exuded by the tiny circular pores. These droplets eventually darken as they dry.

The tubes are shallow and lemon yellow, and they terminate in pores of the same colour.

Stipe

The stem is very pale straw yellow and has no ring or ring zone. Towards the apex of the stem, the surface is granular (from which feature this species gets its common name); the granules are formed as milky droplets exuded from the stem flesh harden as they dry.

Like the cap, when cut the pale yellow stem flesh does no change colour.

Spore print

Ochre or sienna-brown.

Odour/taste

Not distinctive.

Habitat

Beneath coniferous trees, and in particular Scots Pine.

Season

July to November.

Occurrence

Fairly common. 

Similar species

  1. Suillus grevillei has a similar cap but there is a distinct ring zone on its stem and its pores are much larger and angular.
First Nature Multimedia Guide to Fungi
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