Simira, Aublet, 1775

Margalho, Luciano Ferreira, Siqueira, Geovane De Souza, Delprete, Piero G. & Groppo, Milton, 2017, Simira robusta (Rubiaceae, Condamineeae), a new species from the Atlantic Rainforest of south-eastern Brazil, Phytotaxa 299 (1), pp. 118-124 : 122

Key to species of Simira of Espírito Santo state, Brazil

1. Flower buds, inflorescences and flowers pubescent; corolla lobes with imbricate aestivation ....................................................... 2

1’. Flower buds, inflorescences and flowers glabrous; corolla lobes with imbricate or open aestivation ............................................ 3

2. Peduncles 0.7–1.5 cm long; filaments 5–7 mm long; fruits 1.5–2.7 × 1.5–3.2 cm, dehiscing with entire valves ..... S. sampaioana

2’. Peduncles 3–4.5 cm long, filaments 9–10 mm long; fruits 7–8.4 × 4–4.5 cm, dehiscing with bipartite valves ................ S. robusta

3. Corollas 2.5–3 cm long, lobes with open aestivation ......................................................................................... S. hatschbachiorum

3’. Corollas 4–11 mm long, lobes with open or imbricate aestivation .................................................................................................. 4

4. Flowers 4-merous; leaf blades 13–45(–60) × 9–31(–40) cm ........................................................................................... S. glaziovii

4’. Flowers 5-merous; leaf blades 3.6–19 × 1.5–12.5 cm ...................................................................................................................... 5

5. Leaf blades with 16–22 secondary veins on each side of the midrib; corolla lobes with open aestivation; fruit dehiscing with entire valves ............................................................................................................................................................................ S. eliezeriana

5’. Leaf blades with 8–11(13) secondary veins on each side of midrib; corolla lobes with imbricate aestivation; fruits dehiscing with bipartite valves ................................................................................................................................................................. S. grazielae