Pseudoboletus parasiticus

Parasitic Boletus ( Pseudoboletus parasiticus ) on Dickschaligem Kartoffelbovist ( Scleroderma citrinum )

The Parasitic Boletus ( Pseudoboletus parasiticus, syn. Xerocomus parasiticus ), also called parasites Boletus or Parasitic Scheinröhrling, is a rare fungus that grows as a parasite exclusively to Kartoffelbovisten.

Features

His hat is 1-8 cm wide, feinfilzig, dry and light olive-brown. His tubes are sand- brown to dirty olive, its stem is slender, gray- yellow, always bent as it grows around to the host, and pointed towards the base. Its pores are very far, the flesh is whitish and not blauend. The fruiting bodies appear to sociable tufted, often several at a puffball.

Ecology

The Parasitic Röhrling is generally regarded as a parasite on Kartoffelbovisten. He prefers doing the Thick- leagues Kartoffelbovist, findings on other species of the genus Scleroderma is rare. He is an outspoken acid pointer and prefers sandy soils, but makes no special demands on the water supply. It can be found both in dry, heath -like habitats as well as the edges of bogs. It comes in a variety of forest types prior to acidophilous pine forests. The fruiting bodies appear in Central Europe usually in August and September.

Dissemination

The Parasitic Röhrling is widespread throughout Europe, he probably also occurs in North America and North Africa.

System

Some authors present the type in the genus Filzröhrlinge ( Xerocomus ).

Importance

Unlike its venomous host fungus he himself is non-toxic, its value as an edible mushroom is controversial.