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Leaflets of Philippine Botany 



[Vol. vni, Art. 120 



6. 



6. 



6. 



D. 



Upper edge of the rachis and midribs antorsely 

 spiny . 11- Haphin. 



Edges of the rachis and midribs smooth. 



12. Coelococcus. 



Fruits not scale covered. 

 4. Palms confined to saline swamps; peduncle 

 arising from the rhizomes. 13. Nipa. 



4. Dry land palms; peduncles arising from the leaf 

 axils of the stem. 

 5. Palms with spines, either on the petioles or on 

 the leaves and stem. 

 6. Steins as well as the petioles spiny. 



7. Leaflets linear, pointed and split at the 

 apex. 14. Oncosperma. 



7. Leaflets cuneately elongated, irregularly 

 toothed at the broad apex. 15. Martinezia. 

 Edges of petioles only spiny. 

 7. Leaflets duplicate; infrutescence in a 

 subglobose head. 16. Elaeis. 



7. Leaflets induplicate; infrutescence bran- 

 ched. 17. Phoenix. 

 Palms without spines, except the splinter 

 like fibers or bristles of Arenga. 

 6. Inflorescence borne below the leaves whose 

 bases form a tight green boot- like sheath. 

 7. Trunk even or smooth, the mature ones 

 swollen above the middle, the uppermost 

 leaf scars well separated and gray or chal- 

 ky white. 18. Oreodoxa. 

 Trunk uneven or annular especially to- 

 ward the top, cylindric throughout, the 

 uppermost leaf scars closely set, not gray- 

 ish white. 

 3. Primary branches of inflorescence un- 

 branched; fruits closely set in dis- 

 tichous rows. 19. Pinanga. 

 3 Primary branches of inflorescence re- 

 branched; fruits scattered, not in dis- 

 tichous rows. 

 9. The slender and terminal branchlets 

 staminate, or sometimes the entire 

 inflorescence male 20. Areca. 

 9. Male and female flowers scattered or in- 

 termixed throughout the inflorescences. 

 10. Leaflets toothed at the broadened 

 truncately oblique or concave apex. 

 21. Ptyckosperma. 



7. 



