Diphyes tortuosa Blume, Bijdr. (1825) 311
Type: Blume s.n. (Mt. Salak) (holo L)
Bulbophyllum tortuosum (Blume) Lindl., Gen. Sp. Orchid. Pl. (1830) 50
Phyllorchis tortuosa (Blume) Kuntze, Rev. Gen. Pl. (1891) 678
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Bulbophyllum listeri King & Pantl., J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 64 (1895) 334
Type: Lister s.n. (Buthan, Pumpti Lake, 1000 ft.)
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Bulbophyllum indragiriense Schltr., Bull. Herb. Boissier, sér. 2, 6 (1906) 463
Type: Schlechter 13242 (holo B, lost)
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Bulbophyllum ulcerosum J.J.Sm., Bull. Dép. Agric. Indes Néerl. 39 (1910) 5
Type: RÖmer, von 809 (not BO)
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Bulbophyllum tenompokense J.J.Sm., Repert. Spec. Nov. Regni Veg. 36 (1934) 116
Type: Clemens, J. &. M.S. 29674 (holo L; iso BO)