-3- 

 W.D. 



t 37. Panicum commutatum. 



s^38. Panicum clandestinum . 

 — ^39. Panicum sphaerocarpon . 

 1^ 40. Panicum latifoliura Linn. 



^ 41. Panicum walteri Pursh, a species which I think may be kept dis- 

 tinct from Panicum crus-galli. It is surely a native, and 

 has a very characteristic habit of growth, as seen along the 

 coast . 



cm Li I 



— -42. Does not appear to me to be the same^; but there is not a suffi- 

 cient portion of the specimen to 'make a positive identifica- 

 tion; the awns are too short, I think, for Panicum walteri 

 Pursh. 



'*^43. Agrostis perennans. 



p44. Panicum. microcarpon LeConte . 



Y~ 45 . Panicum latifolium L. 



-46. Panicum, sp . undetermined; probably undescribdd. ^ 



47. Panicum lanuginosum Ell. 



~- 48. Panicum, sp . undetermined; referable, I think, to a species 



which I propose to name Panicum iirplicatum, the type being 



collected upon the salt marshes at Cape Elizabeth, Maine; 

 yet unpublished. 



49, I think is Panicum barbulatum, but it is hard to say from the 

 specimen on the sheet. 



— 50. The same as 48, a grass which I am now calling Panicum impli- 

 catum. It is characterized by its spreading pubescence, 

 short erect leaves, capillary panicles, and small spike- 

 lets. The name I have adopted was suggested by seeing this 

 species upon the lowlands at Cape Elizabeth, whero it grew 

 in great masses, the panicles becoming all tangled together 

 and difficult to separata. 



_Xi 51. I do not know what Panicum nodiflorum Lam. is, but certainly 

 V the specimen here, No. 51, would be very properly named if 



called Panicum nodiflorum. It appears to be found along 

 our coast, from Massachusetts to North Carolina at least. 

 It is not Panicum dichotornum, as I understand that species, 

 nor is it referable to Panicu:a barbulatum. It is possibly 

 a fonn of what I have called Panicum implicatum, although 



