Abstract Golovinomyces longipes is a widespread powdery mildew on Solanaceae ( Nicotiana , Petunia and Solanum spp.). In the past, it has been reported only once Verbena Verbenaceae ), non-solanaceaous host. Recently, this found composite Matricaria chamomilla . The identification of species unusual host proved by morphological studies DNA sequence analysis. Both datasets coincide with characte...