W.D. 



"^C 13. Panicum leucothrix Nash, which is possibly the same as Panicum 

 cartilagineum Muhl . 



\f 14. Panicum scoparium Lara. ? certainly of American authors. (Panicum 



scribnerianum Nash.) 



y 



15. Panicum scoparium Lam. 



16. A grass which appears to me to be a smooth or glabrous form of 



Panicum barbulatum. 



^ 17. Panicum barbulatum. 



18. Panicum lanuginosum. 



19. On the same sheet with 18, Panicum boreale . 

 ^ 20. Panicum erectifolium Nash. 



21. Panicum commutatum. 



22. Panicum dichotomum. 

 "---23. Panicum latifolium Linn. 



24. Panicum commutatum. 



25, Panicum commutatum, with short leaves. 

 ^^26. Panicum commutatum. 



^27. Panicum sphaerocarpon . 



y- 29. /Panicum dichotomum. 



31 . Panicum commutatum. 

 y 32. Panicum barbulatum. 



33. Panicum dichotomum, a rather large form of the species. 

 — 34. Panicum dichotomum. 



A- 35. Panicum dichotomum; and I now think that Panicum dichotomum 



Linn., as I understand that species, and Panicum ramulosum Ivix, 

 . are the same . 



36. Panicum barbulatum genuinum. 



