Vanden Berghen (1948) who himself described two new species (1951, 1953) and supplied a key for the Central African taxa (Vanden Berghen 1960). Kuwahara described Metzgeria agnewii from the Aberdare Mts. in Kenya (1973), established the classification of subgeneric taxa (1978) and synonymized several African taxa with other known species (1986), so the known distribution of several African Metzgeria considerably widened
