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Apocynaceae, 



Rauwolfia Linné (det. Craib). 



1. R. sumatrana Jack; var. vel sp. volde affinis. 

 Koh Kahdat (no. 572 b). 



Area of R. sumatrana: Sumatra. 



Cerbera Linné. 



2. C. Odollam Gaertn.; Hook. Fl. Br. Ind. III. 638; Craib, Gontr. 

 Fl. Siam 130. 



In the jungles of the littoral zone, Lem Dan (no. 85) and N. end of 

 Koh Ghang (no. 629 a) (det. Stapf); on rocks at the sea (no. 353) 

 (det. Graib). 



Area: S.E. Asia, Australia. 



Alstonia R. Br. (det. 0. Warburg). 



3. A. scholaris (L.) R. Br. ; Hook. Fl. Br. Ind. III. 642. 

 Plains at Lem Dan (no. 290). 



Area: Tropical Asia, Australia, Africa. 



Ervatamia Stapf (det. 0. Stapf). 



4. E. graciliflora (Wall.) Stapf ; Tabernaemontana graciliflora Wall. ; 

 Hook. Fl. Br. Ind. III. 647. (Determination doubtful). 



Jungle at Klong Son (no. 675 b). 



5. E. malaccensis (Hook, f.) Stapf; Tabernaemontana malaccensis. 

 Hook. Fl. Br. Ind. III. 649, vel species affinis. 



Plains at Klong Prao (no. 717 e); jungle at Klong Munsé (no. 811 a); 

 Koh Kahdat, jungle (no. 579 a). 



Area: Malacca. 



Parsonsia R. Br. (det. 0. Stapf). 



6. P. spiralis Wall.; Hook. Fl. Br. Ind. Iii. 650. 

 River-bank at Klong Prao (no. 713). 



Area: Tropical Asia. 



Aganosma Don (det. Graib). 



7. A. marginata Don; Hook. Fl. Br. Ind. III. 663. Graib, Gontr. 

 Fl. Siam 131. forma aff. A. macrocarpae Wall. Gat. 



Klung (no. 375); Plains at Lem Dan (no. 719 b). 



Area: S.E. Asia. 



Strophantus D.G. (det. 0. Stapf). 



8. S. Wallichii D. G.; Hook. Fl. Br. Ind. III. 655. 

 Jungle at Klong Son (no. 639). 



Area: Assam, Burma. 



