342 ROBINSON. 



7. Primary venation coarse 48. E. squamifera 



7. Veins not coarse. 



8. Petioles not exceeding 2.5 mm, usually shorter.. 5. E. bataamnsis 

 8. Petioles at least 5 mm long, usually longer. 



9. Calyx-tube 2 cm in diameter 49. E. mcgalantha 



9. Calyx-tube less than 1.5 cm 43. E. xanthophylla 



5. Calyx-tube not exceeding 1 cm in diameter. 

 6. Inflorescence very short, flowers small. 



7. Petioles 5-10 mm long 26. E. conglobata 



7. Petioles not exceeding 3 mm. 



8. Primary veins barely evident on upper surface.. 27. E. subfoetida 



8. Venation more prominent 25. E. rubrovenia 



6. Inflorescence not very short. 



7. Calyx-tube over 1 cm long, very slender 89. E . Icptoggmi 



7. Calyx-tube over 1 cm long, not very slender. 



8. Flower-buds ellipsoid 40. E. sulcistyla 



8. Flower-buds turbinate. 



9. Calyx-lobes subequal, persistent A\.E. jambos 



!>. Calyx-lobes unequal, deciduous 42. E. >ncrritti<ina 



7. Calyx-tube less than 1 cm long. 



8. Individual flowers with definite pedicels. 



9. Inflorescence repeatedly branched, many-flowered. 



53. E. oandelabriformit 

 9. Inflorescence few-flowered, peduncles slender.. 23. E. tri/iinnaia 

 9. Inllorescence few to several-flowered, peduncles not slender. 



10. Lateral veins slender 50. E. robot ii 



10. Lateral veins fairly strong. 



11. Flowers racemosely arranged 47. E.brunnca 



11. Flowers paniculately arranged 46.E.vidaliana 



8. Flowers sessile or with very short pedicels. 



9. Primary veins over 20. distinct 54. E. hutchinsoiiii 



9. Primary veins under 10, secondary venation close, nearly as 



conspicuous as primary 59. /;. pulgarenau 



9. Primary veins under 16, secondary venation open. 

 10. Leaves membranaceous or submembranaceous 



22. E. luzonentit 

 10. Leaves chartaceous or coriaceous. 



11. Calyx-tube over 5 mm diameter, peduncles stout and 

 woody. 



12. Lateral veins about 12 61. E. benguetensis 



12. Veins at least 15 55. E. lacustris 



11. Calyx-tube less than 5 mm in diameter. 



12. Inflorescence distinctly branched, leaf -apex not or 



barely acuminate 38. E. macgrcgorii 



12. Inflorescence branched. leaves acuminate. 



13. Petioles about 1 cm long 46. E. vidaliana 



13. Petioles less than 5 mm 52. E. bordenii 



12. Flowers subcapitate on main axis of inflorescence or 

 short lateral branches, leaves acuminate. 



13. Leaves coriaceous 57. E. philippincnsis 



13. Leaves chartaceous. 



14. Leaves glandular 58. E. zamboangensis 



14. Leaves eglandular 56. E. palawanensis 



