Clavariadelphus truncatusThis species is widespread and fruits on the ground in coniferous forests across North America. Fruitbodies are up to 15 cm tall, 15 mm diam, club-shaped, simple, rather tough, with the apex flattened, broad and yellow. The surface is smooth or longitudinally wrinkled. Under the microscope the broadly ellipsoid, broadly ovoid to amygdaliform spores are 9.5-13.5 x 5.5-7 um and this distinguishes C. truncatus from C. ligula and C. sachaliensis. A rather distinctive, colorful fungus, with a flat or depressed top, that is rather easily identified in the field.
Photograph and legend by Jim Ginns
Photographed in Manning Park, B.C.