Nachtigalia protectorata Schinz in Bot. Jahrb. Syst. 19: 133. 1894
Nachtigalia protectorata in Bot. Jahrb. Syst. 19: 133. 1894
is new combination for Phaeoptilum spinosum in Abh. Naturwiss. Vereins Bremen 8: 436. 1883
Nachtigalia protectorata in Bot. Jahrb. Syst. 19: 133. 1894