Ramularia sphaeroidea. [Descriptions of Fungi and Bacteria].
Abstract A description is provided for Ramularia sphaeroidea. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Lotus corniculatus, L. major, L. uliginosus. DISEASE: Leaf spot of Lotus spp., causing severe damage to L. major in Australia (48, 2711) and to L. uliginosus in New South Wales (49, 3738). On the upper side of the leaf the brown spots bear scattered minute reddish brown speckles. The conidiophores on the underside give the spots a white frosted or woolly appearance. Sporulation is known to occur from June to September. GEOGRAPHICAL DISTRIBUTION: Australasia (Australia: New South Wales), Europe (England, Germany, Guernsey, Ireland). TRANSMISSION: By wind dispersal of airborne conidia.