Pouteria, Aublet, 1775

Völtz, Rafael R., Alves-Araújo, Anderson & Goldenberg, Renato, 2020, Native Species of Sapotaceae Juss. in Paraná, Brazil, Phytotaxa 430 (4), pp. 224-276 : 247

Key to the species of Pouteria in Paraná, Brazil

1. Leaves linear or narrow-oblanceolate (the length-width ratio equal or more than 6:1); venation brochidodromous.......................... ................................................................................................................................................................................... 5.9 P. salicifolia

- Leaves narrow-obovate, oblanceolate, wide-elliptic, elliptic, narrow-elliptic or oblong (the length-width ratio less than 6:1); venation eucamptodromous or eucampto-brochidodromous ............................................................................................................ 2

2. Abaxial leaf surface pubescent, but tomentose on the midrib and secondaries, or tomentose.......................................................... 3

- Abaxial leaf surface sericeous, pubescent, puberulent, glabrescent or glabrous; if pubescent, then not tomentose on the midrib and secondaries ........................................................................................................................................................................................ 4

3. Leaves bullate; venation eucampto-brochidodromous: lobes of the corolla with ciliate margins; filaments 3.7-5.0 mm long........... ....................................................................................................................................................................................... 5.2 P. bullata

- Leaves not bullate; venation eucamptodromous; lobes of the corolla with sparsely ciliate margins; filaments 2.5–3.3 mm long ..... ......................................................................................................................................................................................... 5.10 P. torta

4. Calyx with a single whorl of (4–)5 sepals......................................................................................................................................... 5

- Calyx with 2 whorls of 2 sepals ........................................................................................................................................................ 6

5. Venation eucampto-brochidodromous, secondary veins convergent, arcuate; pedicel 1.0– 2.5 mm long.................. 5.4 P. durlandii

- Venation eucamptodromous, secondary veins straight and arcuate near the margin, parallel; pedicel 5.8–8.7 mm long ................... ..................................................................................................................................................................................... 5.5 P. gardneri

6. Tertiary veins percurrent, branches oblique or horizontal; if loosely reticulate, then corolla lobes 6(–7)-merous, these papillose.... ........................................................................................................................................................................................................... 7

- Tertiary veins loosely reticulate or reticulate; if percurrent, the corolla lobes with ciliate margins and the stamens fixed on half or on the lower third of the corolla tube ............................................................................................................................................... 9

7. Abaxial leaf surface pubescent or puberulent and sericeous; corolla 2.3–3.0 mm long; fruit oblate; seed scar covering most of the seed surface .............................................................................................................................................................. 5.6 P. glomerata

- Abaxial leaf surface glabrescent or glabrous; corolla 5.0–10.0 mm long; fruit suborbiculate or globose; seed scar not covering most of the seed surface ............................................................................................................................................................................. 8

8. Flowers with 6(–7) corolla lobes, these papillose; stamens fixed at the top of the corolla tube.................................. 5.11 P. venosa

- Flowers with 4 corolla lobes, these with sparsely ciliate margins; stamens fixed at the upper third of the corolla tube..................... .................................................................................................................................................................................. 5.7 P. guianensis

9. Corolla lobes with entire margins; stamens fixed in the upper third or at the top of the corolla tube ..................... 5.8 P. ramiflora

- Corolla lobes with ciliate margins; stamens fixed on half or on the lower third of the corolla tube .............................................. 10

10. Venation usually eucampto-brochidodromous, seldom eucamptodromous; staminodes oblong, with ciliate margins; fruits yellowish, orangish or reddish, puberulent or glabrescent..................................................................................................... 5.1 P. beaurepairei

- Venation eucamptodromous or seldom brochidodromous; staminodes narrow-lanceolate, with entire margins; fruits brownish or ferrugineous, tomentose ................................................................................................................................................ 5.3 P. caimito