1	"Flowers lacking cilia on any segment, labellum margins and column wings sometimes irregular or denticulate but never ciliate"	2
1	"Flowers ciliate on at least one floral segment"	8
2	"Free part of leaf lamina ending short of lowest flower, usually appressed to flowering stem"	3
2	"Free part of leaf lamina arising among the lower flowers and projecting conspicuously outwards"	7
3	"Labellum lanceolate, apex acuminate to long-acuminate"	"Corunastylis despectans"
3	"Labellum oblong, obovate or cuneate, apex obtuse to acute"	4
4	"Petals lacking an apical gland; labellum obovate-oblong or cuneate, contracting abruptly to an upturned irregularly crenate tip; flowers well-spaced"	5
4	"Petals gland-tipped; labellum more or less obovate, tip rounded or obtuse, margins entire or crenulate; flowers congested"	6
5	"Dorsal sepal 3.5–4 mm long; lateral sepals 4.5–5 mm long; mainly north of the Dividing Range"	"Corunastylis clivicola"
5	"Dorsal sepal 3–3.5 mm long; lateral sepals 4–4.5 mm long; apparently confined to near-coastal areas between Sale and Bairnsdale"	"Corunastylis capparina"
6	"Gland on petals bead-like; labellum dark purplish black; dry inland areas"	"Corunastylis tepperi"
6	"Gland on petals thin and wavy; labellum green to yellowish; moist coastal and near-coastal habitats"	"Corunastylis pumila"
7	"Lateral sepals about twice as long as the narrow-lanceolate labellum; very rare in the Otway Ranges"	"Corunastylis leptochila"
7	"Lateral sepals considerably less than twice as long as the obovate labellum; very rare in the Snowy Plains area"	"Corunastylis densa"
8	"Cilia confined to labellum margins"	9
8	"Cilia present on labellum and at least some other perianth segments"	12
9	"Flowers 2–3 mm across; perianth segments gland-tipped; labellum cilia 0.1–0.2 mm long"	"Corunastylis nuda"
9	"Flowers 4–6 mm across; perianth segments not gland-tipped; labellum cilia more than 0.5 mm long"	10
10	"Lateral sepals erect or sub-erect; perianth segments wholly purple to purplish black; montane to sub-alpine areas; flowers appearing in Summer"	"Corunastylis arrecta"
10	"Lateral sepals porrect or deflexed; perianth segments not wholly purplish black; lowland areas; flowers appearing in Autumn"	11
11	"Lateral sepals porrect; perianth segments usually bright green with a contrasting reddish labellum"	"Corunastylis ciliata"
11	"Lateral sepals deflexed; perianth segments dark green and purplish with a dark reddish labellum"	"Corunastylis archeri"
12	"Cilia sparse, short, present on labellum and petals but not dorsal sepal; flowers mostly 5–12 in a short crowded inflorescence"	"Corunastylis archeri"
12	"Cilia numerous, long, present on labellum, petals and dorsal sepal; flowers mostly 10–22 in a long crowded inflorescence"	"Corunastylis morrisii"