Oberonia micrantha A.Rich. in D'Urv., Voy. Astrol., Bot. (1834) 7
Type: Richard s.n. (Vanikoro) (holo P, lost; iso W, drawing P)
Rhynchophreatia micrantha (A.Rich.) N.Hallé, Fl. Nouv.-Caléd. Dép. 8 (1977) 341, pl. 140
Rhipidorchis micrantha (A.Rich.) D.L.Jones & M.A.Clem., Orchadian 14 (8: Scientific Suppl.) (2004) xv
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Eria richardiana Rchb.f. in Seem., Fl. Vitiensis (1868) 300
Phreatia richardiana (Rchb.f.) Kraenzl. in Engl., Pflanzenr. IV. 50. II. B. 23 (1911) 26
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?Oberonia papuana F.M.Bailey, Bot. Bull. Dept. Agric. Queensland 14 (1896) 14
Type: Dixson s.n. (New Guinea) [not in BRI (fide Ormerod)]
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Thelasis samoensis Kraenzl., Bot. Jahrb. Syst. 25 (1898) 607
Type: Reinecke 606 (Upolo, Lapua) (syn B, lost); 652 (Upolo, Lapua) (syn B, lost)
Phreatia samoensis (Kraenzl.) Schltr., Repert. Spec. Nov. Regni Veg. 3 (1907) 320
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Phreatia macrophylla Schltr., Bot. Jahrb. Syst. 39 (1906) 78
Type: Schlechter 15465 (holo B, lost; iso BM, K, L, LE, P, PR, S, W, Z)
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Phreatia sarcothece Schltr., Repert. Spec. Nov. Regni Veg. 9 (1911) 438
Type: Morrison s.n. (1898; Aneytyum Isl., New Hebrides) (holo B, lost)
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Phreatia robusta R.S.Rogers, Trans. & Proc. Roy. Soc. South Australia 54 (1930) 39
Type: Brisbane cult. (White) s.n. (I-1930, Cairns)= Beck s.n. (holo AD)
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Phreatia collina Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 919 (non J.J. Smith)
Type: Schlechter 16438 (holo B, lost); para: Schlechter 16600; 17994; 18288; 19533; 20259 (B, lost; AMES)
Phreatia clivicola W.Kittr., Bot. Mus. Leafl. 30 (1984, publ. 1985) 102 (as nom. nov.)
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Phreatia collina Schltr. var. linearis Schltr., Repert. Spec. Nov. Regni Veg. Beih. 1 (1913) 920
Type: Schlechter 17456 (holo B, lost)
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Phreatia moluccana J.J.Sm., Bull. Jard. Bot. Buitenzorg, sér. 2, 13 (1914) 35
Type: J.J. Smith cult. s.n. (Hatoe Lalikoel); de Savorin Lohmann s.n. (1908, N. Halmaheira); Gjellerup 402
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Phreatia macrophylloides Kraenzl., Vierteljahrsschr. Naturf. Ges. Zñ74 (1929) 93
Type: Daeniker 2483 (Loyaute Isl., Iufon) (holo Z; iso Z)
3 (Loyaute Isl., Iufon) (holo Z; iso Z)