Scutiger (fungus)

Scutiger is a genus of fungi in the family Albatrellaceae, within the order Russulales. It is characterized by fleshy, often medium to large-sized fruit bodies with a central or eccentric stipe and pores that run down the stipe (decurrent). The pore surface is typically white to cream-colored.

Description:

Species within the genus Scutiger are typically terrestrial and mycorrhizal, forming symbiotic relationships with tree roots. The cap (pileus) can range in color, often featuring shades of white, cream, yellow, or brownish tones. The texture can vary from smooth to slightly scaly. The stipe (stalk) is generally stout and may be central or off-center. The pore surface distinguishes Scutiger from other similar fungi. The pores are small, angular, and typically extend down the stipe, differentiating it from boletes which have tubes that do not run down the stipe.

Taxonomy and Classification:

The classification of Scutiger has undergone several revisions. It was historically placed within the Polyporaceae family. Modern molecular phylogenetic analysis has led to its placement within the Albatrellaceae, a family known for its mycorrhizal members. The genus Albatrellus is a closely related genus within the same family, and distinguishing between the two can sometimes be challenging.

Distribution and Ecology:

Scutiger species are found in temperate and boreal regions of the Northern Hemisphere. They are generally associated with coniferous or deciduous trees, forming ectomycorrhizal associations that are crucial for nutrient exchange. The fruiting bodies typically appear in the late summer and fall.

Edibility:

Edibility varies within the genus, and caution should be exercised when considering any Scutiger species for consumption. Some species are considered edible, while others are not recommended due to potential toxicity or unpleasant taste. Positive identification by an expert is crucial before consumption.

Notable Species:

Several species have been historically placed in Scutiger, though some have been reassigned based on phylogenetic data. Some examples (though the classification may be under revision) include species previously known as Scutiger ovinus and related taxa.