This ectomycorrhiza shows, a cover of bright yellow cystidia (appering fluorescent in surface light), causing a short-spiny surface, on a dark brown mantle. Mantle plectenchy-matous in all layers, outer and middle layers star-like, inner layers plectenchymatous with sinous hyphae. Cystidia similar to normal hyphae, but fusiform and clamped at the base. Rhizomorphs frequent, slightly differentiated, occurring on mycorrhizal systems and in the soil, brown to dark brown, ramified at restricted points, conical-young side branches present cystidia on rhizomorphs lacking. Slerotia lacking.

This study was financially supported by Fundaçao Para a Ciência e a Tecnologia (SFRH7 BPD/5560/2001) and HP BIODIBERIA program at the Real Jardín Botánico (Madrid).

Peer reviewed