Materials for a Flora of the Malayan Peninsula. 



131 



Ghimes II and III 3-5 veined. 

 Panicle spike-like 

 Panicle much branched long . . 



§ 5. Ptychophyllum. Leaves broad 

 plicate. Panicle decompound nodding . . 



§ 6. Effdsae. Panicle usually spread- 

 ing lax spikelets small terete. 



Annuals. 



Leaves glabrous 

 Leaves hairy 

 Perennials. 



Glume III epaleate. 



Spikelets lanceolate acute . . 



Spikelets subglobose or oblong 



Spikelets ellipsoid very small 

 Glume III paleatc. 



Leaves linear lanceolate. 



Spikelets acute. 

 Glume I half as long as III. 

 Glumes ovate tips thickened . . 

 Glumes not thickened at the tips. 



Leaves glabrous 



Leaves hairy 

 Glume I I of Gl. Ill orbicular 

 Glume I i length of Gl, III ovate . . 



Spikelets obtuse. 



Very long scandent grass . . 



Stems tall not scandent 



Leaves ovate 



glabrous 

 Leaves ovate 



hairy 



amplexicau 

 amplexicau 



leaves 



leaves 



8. P. myurus. 

 0. P. anritum. 



10. P. pUcatum. 



11. P. humile. 

 13. P. luzonense. 



13. P. nodosum. 



14. P. montanum. 



15. P. humidor urn. 



16. P. oryzoides. 



17. P. imlopodium. 



18. P. eJegaiiiissimitm. 



19. P. re pens. 



20. P. proliferum. 



31. P. sarmentosum. 

 33. P. maximum. 



33. P. ovalifoliiim. 



34. P. hirtifolium. 



§ 7. GiBBOSAE. Perennial grasses, 

 with very small laterally compressed spike- 

 lets in lax panicles. 



Pedicels of spikelets short . . . . 



Pedicels long capillary 



35. P. pilipes. 

 26. P. patens. 



