1912*"Bulbophyllum yuanyangense" Z.H.Tsi 1995*"Bulbophyllum yunnanense" Rolfe 1901===Z===*"Bulbophyllum zambalense" Ames 1912*"Bulbophyllum zamboangense" Ames (1913 publ.
1912* "Bulbophyllum yuanyangense" Z.H.Tsi 1995* "Bulbophyllum yunnanense" Rolfe" 1901== Z ==* "Bulbophyllum zambalense" Ames 1912* "Bulbophyllum zamboangense" Ames (1913 publ.