Text © Bruno Gasparini
English translation by Mario Beltramini
Section : Fulvi
Cortinarius rufoolivaceus (Persoon) Fries 1838
Immediately recognised on the field by the winy-red colour of the cap and olivaceous of the gills, which cannot escape the attention of any collector.
Cap : 5-10(12) cm, convex, then planar, occasionally also depressed. Cuticle very viscous-glutinous, smooth with membranous debris of a winy-coloured veil, carmine pink or wine red, paler toward the margin, sometimes greenish particularly in the variety pallidus .
Gills : dense, fragile, slightly serrate, annexed-seceding, pale olive.
Stalk : sometimes hefty, sometimes slimmer, up to 12 cm in length, 15 mm wide, cylindrical, pale greenish-reddish, bulbous, bulb onion-shaped, emarginated by a wine-red veil.
Contest : firm, pale in the sap, greenish in the stalk, reddish-lilac in the bulb.Odour rather unpleasant. Taste bitterish.
Habitat: under broadleaf particularly in warm climate (Oaks, olm-oaks, horn-beam)
Chemical reactions : On the cap KOH (or NaOH) immediately green, then slowly red.
Spore : lemonshaped, grossly verrucose 10-13 x 6-7,5
Notes : This attractive Phlegmacium in section Fulvi .M.M. Moser 1975 possesses a neutral monoanthraquinone (phiscion), some dimeric anthraquinones, naphthoquinones of heptaketidic origin, plus phlegmacins and rufoolivacine of octaketidic origin. Anthraquinones are potentially toxic or carcinogenic
Taxonomically speaking, Fulvi are affine to Calochroi , which tests made with suggest to be a self-standing subgenus of Cortinarius .
It is a group of vivaciously coloured Cortinarius , yellow red, blue, green, vinaceous, etc.
Cortinarius decoratus Bataille.
Cortinarius orichalceus var. russus Quél. p.p.
Hydrophorus rufolividus Battara.
Agaricus Cortinaria rufoolivaceus Alb. & Schwein.
Cortinarius rufoolivaceus var. decoratus Bataille.
Cortinarius russus ss. Quélet, sec. Konrad & Maublanc.
Cortinarius testaceus Cooke 1883
Cortinarius vinosus Cooke 1883
The photographic file of Giuseppe Mazza