Chrysophyllum

Lima, Renata Gabriela Vila Nova De, Lima, Liliane Ferreira & Zickel, Carmen Silvia, 2021, Chrysophyllum lancisepalum (Sapotaceae, Chrysophylloideae): a new endemic species from the Brazilian Atlantic forest, Phytotaxa 478 (1), pp. 131-140 : 138

Key to Chrysophyllum in the Brazilian Atlantic forest

1. Leaves along the branches, usually alternate and distichous .............................................................................................................2

- Leaves grouped at branch ends, usually alternate and spirally ........................................................................................................12

2. Shrub 1.5–4.0 m tall ....................................................................................................................................................... C. arenarium

- Trees 3–22 m tall ................................................................................................................................................................................3

3. Leaf texture coriaceous................................................................................................................................................. C. januariense

- Leaf texture chartaceous.....................................................................................................................................................................4

4. Leaf margin strongly revolute ............................................................................................................................................... C. rufum

- Leaf margin flat ..................................................................................................................................................................................5

5. Leaves glabrescent on both surfaces ..................................................................................................................................................6

- Leaf indument persistent on the lower surface...................................................................................................................................7

6. Corolla pubescent ....................................................................................................................................................... C. pubipetalum

- Corolla glabrous ............................................................................................................................................................. C. inornatum

7. Stamens inserted in the corolla tube orifice; anthers glabrous..................................................................................... C. marginatum

- Stamens inserted in or below the middle the corolla tube; anthers villous ........................................................................................8

8. Sepals lanceolate ........................................................................................................................................................ C. lancisepalum

- Sepals ovate or suborbicular...............................................................................................................................................................9

9. Flowers 4–7 mm long; filament 1–2 mm long .................................................................................................................................10

- Flowers 3–4 mm long; filament 0.5–1.0 mm long ...........................................................................................................................11

10. Tube equal to or slightly longer than the lobes; ovary conical........................................................................................ C. flexuosum

- Tube twice as long as the lobes; ovary turbinate.......................................................................................................... C. paranaense

11. Stamens inserted at the base of the corolla tube......................................................................................................... C. sparsiflorum

- Stamens inserted in the middle of the corolla tube......................................................................................................... C. splendens

12. Leaf margin serrate..................................................................................................................................................... C. subspinosum

- Leaf margin entire ............................................................................................................................................................................13

13. Venation brochidodromous and flat; secondary veins 17–25 pairs........................................................................................ C. viride

- Venation eucamptodromous and prominent; secondary veins 11–20 pairs......................................................................................14

14. Corolla tube shorter than the lobes; stamens inserted near the top of the tube; filaments 1.2–2.0 mm ...................... C. gonocarpum

- Corolla tube equaling or exceeding the lobes; stamens inserted in lower half of tube; filaments 0.5–1.0 mm ................................... .................................................................................................................................................................................... C. lucentifolium