Aporostylis bifolia (Hook.f.) Rupp & Hatch
Caladenia ? bifolia Hook. f. Fl. N.Z. 1, 1853, 247.
Chiloglottis Traversii F. Muell. Veg. Chath. ls 1864, 51.
Caladenia macrophylla Col. in T.N.Z.I. 27, 1895, 396.
Chiloglottis bifolia (Hook. f.) Schlechter in Engl. Bot. Jb. 45, 1911, 383.
Original locality: "Middle Island, Otago, Lyall". Type: K(?).
Plant at fl. c. 5–20 cm. tall. Stem erect, slender, glandular-pubescent, us. densely. Green lvs 2, us. close together, the lower to 10–(15) cm. long, the upper us. shorter; linear-lanceolate to broadly ovate-oblong, often brown-blotched, clad, sts very sparsely, in long, glandular-tipped hairs which also us. fringe margin. Fl. held well above lvs; ovary glandular-pubescent. Per. to 2.5 cm. diam., white or pink. Sepals ± glandular-pubescent externally; dorsal much the widest, slightly arched over column; lateral linear-lanceolate. Petals slightly shorter. Labellum orbicular-obovate, with narrow base; calli yellow, in 2 median rows near base. Column-wings joined in front of base, narrow to level of stigma, there wider and extending upwards as small, often pointed lobes, one on each side of anther.
DIST.: N., S., St., Ch., A., C., Ant.
Upland areas from Coromandel Peninsula (Moehau, Cranwell and Moore, 1933), East Cape district and Volcanic Plateau southwards, descending to sea level in the southern part of its range.
FL. (11)–12–1–(2).
Chiloglottis traversii was published by Mueller as a synonym of Caladenia bifolia.
Caladenia macrophylla. Original locality: "Ruahine mountain-range, east side; 1894: Mr A. Olsen." Type: WELT 24286.
Gibson, Hatch and Irwin (Bull. Wellington bot. Soc. No. 26, 1953, 7) record: "Both linear- and ovate-leaved plants have been seen in the same colony".
In its subterranean parts Aporostylis resembles Chiloglottis rather than Caladenia.