Dionysia, Fenzl, 1843

Güzel, Yelda, 2021, A new Dionysia (Primulaceae) species from southern Turkey, the most western species of the Irano-Turanian genus, Phytotaxa 525 (4), pp. 281-294 : 293

Key to Turkish species of Dionysia

1. Leaves 2–5 mm; scape absent ............................................................................................................................................................2

1’. Leaves 8–60 mm; scape 1–10 cm .......................................................................................................................................................3

2. Corolla 9–16 mm long, with lobes trifid and bifid at the apex........................................................................................ D. zeynepiae

2’. Corolla 24–26 mm long, with lobes entire at the apex.......................................................................................................... D. odora

3. Leaves 10–60 mm long; scapes 2–10 cm long; inflorescence of (1–)2–4 whorls..................................................... D. bornmuelleri

3’. Leaves 10–30 mm long; scapes 1–3 cm long; inflorescence of 1–2 whorls ................................................................. D. teucrioides