Apocynaceae

Apocynaceae

Trees, shrubs or herbs with usually milky latex and opposite whorled leaves; calyx five-partite, often with scales or glands with in; corolla salver-s haped or rotate, lobes contorted; ovary two, free each unilocular with few of or many ovules; fruit a berry of drupe or of two distoicnt or connate follicles.

Apocynaceae

1 (a) Corona present – 4

1 (a) Corona absent – 2

2 (a) Calyx glandular – 3

2 (b) Calyx eglandular – Alstonia scholaris

3 (a) Glandular inside – Holarrhena pubescens

3 (b) Glandular outside – Plumeria obtusa

4 (a) Disc present – 5

4 (b) Disc absent – 6

5 (a) Seed winged – Allamanda blanchetii

5 (a) Seed notwinged – Rauwolfia serpentina

6 (a) Corolla salverform, widened at or near middle – Tabernaemontana divaricata

6 (a) Corolla funnel-shaped, spreading – Nerium indicum