| Xerocomus subtomentosus (L.:Fr.) Quél. |
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common name(s) : Suede Bolete
synonyms: Boletus subtomentosus, Xerocomus lanatus, Boletus lanatus
edibility : edible
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The cap is olive-yellow, pale brown to olivaceous brown, without any trace of red, fleshy, hemispherical, then convex and finally expanded, or even depressed in dry places. The cap surface is dry and never viscid, downy-felty like chamois leather, often cracking into large patches when drying, without showing beneath any trace of red flesh (only brown or yellow shades). The cap margin is thick, exceeding and overhanging tubes. The stem is slim, full and fibrous, more or less equal and sometimes swollen at the base, sometimes sinuate, with a pointy base. It is ochre-yellow, with stains or vertical red-brown streaks giving a appearance of false network. The stem base is red-brown to wine-red.. The flesh is firm at first then soft, creamy white in the cap, clearly yellow in the stem. It does not turn blue or green in general when exposed to air, or very slightly, especially above the tubes (in damp weather). It is red-brown (not red) just underneath the cap surface; its taste is faint and mild; the odour is weak and slightly fruity; The tubes are adnate to almost free, decurrent through some kind of vertical gills around the stem. They are easily removed from cap,4-15mm long. They are yellow then become olivaceous yellow, turning slightly blue or not at all when cut. The pores are rather large (1 to 1,5mm), composed (containing smaller pores inside), angular, bright yellow for a long time then olive green. Their size grow as they become closer to the stem. They turn very lightly blue when pressed, or not at all. The spore print is olive brown. It grows in broad leaved or coniferous woods, or in meadows close to trees, often solitary, on a rather acid, sometimes calcareous soil, with oak, chestnut and birch. The fruiting period takes place from June to November.
Chemical tests : The cap surface turns pinkish-brown, yellowish or blue-green when in contact with ammonia, or has no reaction. Distinctive features : cap with a velvety surface, like chamois leather, often cracking to reveal the white-yellow flesh (without reddish shades) underneath; striate stem, also without red shades; bright yellow pores, unchanging or turning slightly blue when pressed Xerocomus subtomentosus is occasional and widely present in the forest of Rambouillet, and is occasional, more generally speaking . | ||
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page updated on 14/01/18