The term suilli was also thought to encompass the related Leccinum scabrum.

Other mycorrhizal associates include Leccinum scabrum and Cantharellus cibarius.

Leccinum scabrum (Birch bolete)

The birch bolete (Leccinum scabrum) is an edible mushroom in the family Boletaceae, and was formerly classified as Boletus scaber.

These include such as Boletus scaber, now Leccinum scabrum, Tylopilus felleus, Chalciporus piperatus and Suillus luteus.

It has been noted to grow alongside Boletus badius in Europe, and Leccinum scabrum and Lactarius plumbeus in the Pacific Northwest region of North America.

The Leccinum aurantiacum (as well as the Leccinum versipelle), found under aspen trees, and the Leccinum scabrum (as well as the L. holopus), found under birch trees.

The genus name was coined from the Italian Leccino, for a type of rough-stemmed bolete.

It fruits from June to October; its common names include rough-stemmed bolete, scaber stalk, and birch bolete.

In North America, it is sometimes referred to by the common name red-capped scaber stalk.

Leccinum aurantiacum (Red-capped scaber stalk)

It fruits from June to October; its common names include rough-stemmed bolete, scaber stalk, and birch bolete.

Leccinum scabrum (Birch bolete)

The birch bolete (Leccinum scabrum) is an edible mushroom in the family Boletaceae, and was formerly classified as Boletus scaber.

Leccinum versipelle, otherwise known as the Orange Birch Bolete is a common, edible mushroom (given the right preparation) in the genus Leccinum.

The term suilli was also thought to encompass the related Leccinum scabrum.

The birch bolete (Leccinum scabrum) is an edible mushroom in the family Boletaceae, and was formerly classified as Boletus scaber.

The Leccinum aurantiacum (as well as the Leccinum versipelle), found under aspen trees, and the Leccinum scabrum (as well as the L. holopus), found under birch trees.