286 PROCEEDINGS OF THE ACADEMY OP [1886. 



of P. laeve, with long, smooth leaves, not as No. 6 is described 

 with " foliis latiusculis, brevibus." 



7. P. difForme, Le Conte. 



The name as printed is " cliflbrme," evidently a tj^pographical 

 error. The specimen is intermediate between P. laeve and P. 

 Floridanum, and different from either. Le Conte says, " Refert 

 P. Floridanum sed spicis erectis, glumisque majoribus facile dis- 

 tinguitur." This comparison was evidently made with his No. 5, 

 which was not the P. Floridanum, Mx. He also refers Paspalum 

 No. 7 of Muhlenberg's Gram, to this plant, but the description is 

 too obscure to be of any value. We have specimens in the II. S. 

 Herbarium from N. C, and from Florida, which are apparently 

 the same as Le Conte's plant. They have been referred to P. 

 Floridanum, but are clearly different in the smaller size of the 

 plant, in the shorter spikes, and in the much shorter leaves. We 

 have the same plant, also, from Dr. Charles Mohr, Mobile, Ala., 

 who noted that it differed from the P. Floridanum. He says P. 

 Floridanum blooms from the middle of June to the middle of 

 July, while the other kind begins to flower six or eight weeks 

 later. Altogether it seems that for these specimens Le Conte's 

 name should be recognized and added to our list. 



8. P. undulosum, Le Conte. 



The specimen over this name is apparently a form of P. laeve, 

 Michx., with wider and smoother leaves, more numerous and 

 shorter spikes than in the common form. I have seen no other 

 specimens quite matching it, and it may very well be called P. 

 laeve, variety undulosum. The undulate margin of the leaves is 

 also shared by other species. Schultes subsequently published 

 this as P. Leconteanum (Mant. 2, 168), probably because Le 

 Conte's name was too much like P. undulatum, Poir. 



9. P. latifolium, Le Conte. 



The specimen with this name looks like a very exuberant P. 

 ciliatifolium, with equally small spikelets, but in three or four 

 series. The leaves are about an inch wide, and eight to ten 

 inches long. I have seen no other such specimens, but the 

 general appearance and habit is that of P. ciliatifolium, of which 

 it is probably a luxuriant form. 



