Hysterionica, Willdenow, 1807

Schneider, Angelo Alberto & Boldrini, Ilsi Iob, 2012, Hysterionica matzenbacherii, a new species of Astereae (Asteraceae) from Brazil, Phytotaxa 49 (1), pp. 50-54 : 52-53

Key to the species of Hysterionica from Brazil (terminology following Matzenbacher & Sobral 1996)

1. Leaf margin entire ................................................................................................................................. H. nidorelloides

- Leaf margin incised, leaves pinnatilobed or pinnatisect .............................................................................................. 2

2. Leaf margin irregularly incised to lobed (except at the basal part of the leaves), limb of radiate corollas 2.3–2.7 mm long .................................................................................................................................................. H. matzenbacherii

- Leaves pinnatilobed or pinnatisect, limb of radiate corollas 4–11.5 mm long ............................................................. 3

3. Leaves pinnatilobed, limb of radiate corollas 4–5 mm long .................................................................... H. pinnatiloba

- Leaves pinnatisect, limb of radiate corollas 8–11.5 mm long ...................................................................................... 4 4. Leaves 15–30 mm long, limb of radiate corollas 10.5–11.5mm long ....................................................... H. nebularis

- Leaves 30–35 mm long, limb of radiate corollas 8–8.5 mm long .......................................................... H. pinnatisecta