ILLUSTRATIONS. 



TEXT FIGURES. 



Page. 



Fig . 1 . Panicum distantiflorum 23 



2 . P. utowanaeum ... 24 



3 . P. chapmani 25 



4. Distribution of P. chapmani 25 



5. P. ramisetum 26 



6. Distribution of P. ramisetum 26 



7. P. reverchoni 27 



8. Distribution of P. reverchoni 27 



9. P. firmulum 27 



10. Distribution of P. firmulum 28 



11. P. geminatum 31 



12. Distribution of P. geminatum 32 



13. P. paludivagum 32 



14. Distribution of P. paludivagum 33 



15. P. barbinode 34 



16. Distribution of P. barbinode 35 



17 . P. reptans 37 



18. Distribution of P. reptans 37 



19. P . fasciculatum 38 



20. Distribution of P. fasciculatum 40 



21 . P . fasciculatum chartaginense 41 



22. Distribution of P . fasciculatum chartaginense ■. 41 



23. P. molle 42 



24. P. adspersum 43 



25. Distribution of P. adspersum 44 



26. P. arizonicum 44 



27 . Distribution of P. arizonicum 46 



28. P. texanum 46 



29. Distribution of P. texanum 47 



30. P. vaseyanum 47 



31. P. dichotomiflorum.'. 50 



32. Distribution of P. dichotomiflorum 51 



33. P. bartowense 52 



34. Distribution of P. bartowense 53 



35. P. elephantipes 53 



36. P. flexile 56 



37. Distribution of P. flexile 56 



38. P. gattingeri 57 



39. Distribution of P. gattingeri 57 



40. P. philadelphicum 58 



41. Distribution of P. philadelphicum 59 



VII 



