A PRELIMINARY REVISION OF PHILIPPINE MYBTACELE. 341 



8. Branches of inflorescence slender. 



9. Inflorescences on trunk, many in each fascicle. 



21. E. mananquil 

 9. Inflorescences not on trunk, solitary or paired. 



10. Inflorescence widely branching, the many flowers sessile 



or very short-pedicelled 22. E. luzonensis 



10. Inflorescences of 1-7 long-pedicelled flowers. 



23. E. tripinnata 

 4. Flowers axillary or terminal, leaf-bases obtuse or cordate. 

 5. Inflorescences pendulous, solitary or paired, 1-flowered. 



6. Leaves attaining 15 cm, lateral veins about 12.... 6. E. speciosissima 

 6. Leaves exceeding 30 cm long, lateral veins 25 or more. 



8. E. longissima 

 5. Inflorescences not pendulous, at least 20 cm long, 1-3-flowered. 



7. E. longipedicellata 

 5. Inflorescences not pendulous, 7 cm or less, lateral veins 40 or more. 



10. E. merrillii 

 5. Inflorescences not pendulous, 1-flowered, not exceeding 8 cm, lateral 



veins about 12 5. E. bataanensis 



5. Inflorescences not pendulous, more than 1-flowered, 12 cm or less, veins 

 25 or less, or if 1-flowered sessile or subsessile. 

 G. Inflorescence contracted, both peduncles and pedicels very short or 

 wanting. 

 7. Submarginal vein definite. 



8. Leaves lanceolate to elliptic, base cordate. 

 9. Calyx-tube at least 12 mm in diameter. 



10. Primary veins coarse, secondary inconspicuous on upper 



surface 16. E. phanerophlebia 



10. Primary veins more slender, secondary evident on upper 



surface 14. E. copelandii 



9. Calyx-tube 6 mm in diameter 16. E. angulata 



8. Leaves elliptic, base merely obtuse 30. E. crassipes 



8. Leaves ovate to orbicular — - 31. E. subrotundifolia 



7. Main submarginal vein interrupted 29. E. subscssilis 



G. Inflorescence widely branching. 



7. Calyx-lobes less than 1 mm long 28. E. barnesii 



7. Calyx-lobes conspicuous. 



8. Calyx-tube 6 mm or less in diameter 32. E. mindanaensis 



8. Calyx-tube at least 8 mm in diameter. 



9. Peduncles and usually pedicels stout 31. E. subrotundifolia 



9. Peduncles and pedicels more slender. 



10. Calyx-lobes succulent in fruit 33. E. javanica 



10. Calyx-lobes withering 34. E. calubcob 



4. Flowers axillary or terminal, leaf-bases acute; venation close, secondary 



veins as prominent as primary or nearly so 37. E. longiflora 



4. Flowers axillary or terminal, leaf -bases acute, venation open; leaves in 



threes 44. E. triphylla 



4. Flowers axillary or terminal, leaf-bases acute, venation open, leaves 

 opposite. 

 5. Calyx-tube at least 1 cm in diameter. 



6. Flowers sessile, terminal 45. E. everettii 



6. Flowers pedicelled, terminal or axillary. 



