Abstract
A description is provided for Septoria sisymbrii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: Leaf spot, leaf spot of watercress (ANON., 1984), drying of the leaves. HOSTS: Dentaria laciniata, Descurainia incisa, D. richardsonii subsp. incisa, Nasturtium microphyllum, N. officinale, Sisymbrium altissimum, S. columnae, S. irio, S. junceum, S. loeselii, S. officinale, S. orientale, S. polymorphum, S. septulatum, S. sinapistrum, S. strictissimum (Brassicaceae). GEOGRAPHICAL DISTRIBUTION: NORTH AMERICA: USA. CENTRAL AMERICA: Cuba. SOUTH AMERICA: Venezuela. ASIA: Armenia, Republic of Georgia [http://www.cybertruffle.org.uk/gruzmaps/index.htm], India, Iran, Kazakhstan, Kirgizstan, Russia (West Siberia, Far East), Tadjikistan, Turkmenistan, Uzbekistan. EUROPE: Austria, Bulgaria, Czech Republic, Estonia, Germany, Great Britain, Latvia, Lithuania, Moldova, Poland, Portugal, Romania, Russia, Serbia, former Yugoslavia. TRANSMISSION: Not reported, but almost certainly by airborne or splash-dispersed conidia.