F. amieti
F. cinnamomeus
F. gardneri
F. gresensi
F. intermittens
F. mirabilis
F. moense
F. puerzli
F. spoorenbergi
F. spurelli
Regarded by some as a synonym of F. walkeri, DNA evidence shows there is a greater difference between WAL and SPU than between F. arnoldi and F. filamentosum. (JVDZ, Pers. Comms)
F. traudeae
F. walkeri