Agaricus
(derived from Agaria, the name of a town in Sarmentosa). Mushroom. ORD. Fungi. The most extensive genus known. It, however, contains but one or two species of cultural value. The most important ones are the common field mushroom, A. campestris (Fig. 44), the Fairy Ring mushroom, A. pratensis, and A. vaginatus. Familiar species are the Parasol mushroom, A. procerus St. George's mushroom, A. gambosus and the deadly Fly Agaric, A. muscarius For practical purposes the majority of this genus are poisonous, and many virulently so. Great care must be exercised in experimenting with unknown species, even by experienced fungologists. See Mushroom.
