Microstylis protracta J.J.Sm., Nova Guinea 18 (1935) 20, pl. 4, fig. 7
Type: Docters van Leeuwen 10972 (holo L; iso BO)
Crepidium protractum (J.J.Sm.) Szlach., Fragm. Florist. Geobot. Suppl. 3 (1995) 130
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Microstylis protracta J.J.Sm. var. brevidens J.J.Sm., Nova Guinea 18 (1935) 20
Type: Docters van Leeuwen 10931 (holo L; iso BO)