Pombalia lanata complex

Paula-Souza, J., Lima, A. G. & Souza, V. C., 2021, THE VIOLETS OF THE BRAZILIAN SAVANNA: A REVISION OF THE POMBALIA LANATA COMPLEX (VIOLACEAE), WITH DESCRIPTIONS OF TWO NEW SPECIES, Edinburgh Journal of Botany 78 (357), pp. 1-32 : 8

Key to species of the Pombalia lanata complex

1a. Flowers most frequently arranged in congested terminal inflorescences, or sometimes in poorly defined racemose inflorescences; sepals fimbriate _____________ 6. P. velutina

1b. Flowers solitary, axillary; sepals entire _____________________________________________ 2

2a. Anterior petal> 20 mm long; connective appendage orange-brown _______ 2. P. insignis

2b. Anterior petal <20 mm long; connective appendage hyaline ________________________ 3

3a. Stems and leaves strigose _________________________________________________________ 4

3b. Stems and leaves velutinous, villous or spreading-villous ___________________________ 5

4a. Leaves 10–14 × 3–4.4 mm, connective appendages c. 0.3 mm long ____ 1. P. cristalina

4b. Leaves 4–7.9 × 1.5–3 mm; connective appendages 1–1.2 mm long ___ 5. P. strigoides

5a. Stems and leaves villous-spreading, the hairs simple ______________________ 4. P. poaya

5b. Stems and leaves tomentose to densely villous, less frequently pubescent, the hairs never spreading and usually grouped in tufts (stellate) ___________________ 3. P. lanata