PANICE.E. 81 



alike, the former 7-9-nerved, tlie latter with 2 obscure nerves near 

 each margin. 



Florida, A. If. Onrtiss 3562.* 



22. (t2) Paspalum L. Syst. Ed. 10, 2:855 (1759). 



Sahsab A<\im&. Fam. 2:31 (1763). 



Cleachne Koland. Kottb. Act. Lit. Univ. Hafn. 1:285 (1778). 



Ceresia Pers. Syn. 1 : 85 (1805). 



Axonopus Beauv. Agrost. 12 (1812). 



Cabrera Lag. Gen. et Sp. Nov. 5 (1816). 



Pas2Kilanthium Desv. Opusc. 59 (1831). 



MmncJiia Wender. Steiid. Nom. ed. (2). 2: 153 (1841). 



Anachyris Nces. Hook. Kew Jonrn. 2: 103 (1850). 



Maizilla Schlecht. Bot. Zeit. 8:601 (1850). 



Anastrophvs Schlecht. Bot. Zeit. 8:681 (1850). 



Cymatochloa Schlecht. Bot. Zeit. 12:821 (1854). 



Lappagopsis Steud. Syn. PI. Gram. 112 (1855). 



Wirtgenia Nees. Doell. Mart. Fl. Bras. (2) 2:40 (1877). 



Spikelets 1 flowered, not awued, usually plano-convex in 1 or 2 

 single or double rows, on short pedicels. Glumes 3, the two outer 

 ones empty, usually membranous and equal or nearly so, the third 

 or floral of a thinner texture; palea within the floral glume, firm, 

 smaller, nearly flat. Stamens 3. Styles distinct, rather long. 

 Grain enclosed, but not adherent. Some spikelets of some species, 

 as P. (listichuvu have an additional small glume on the flat side, 

 thus serving to unite this gjnus with Panicum. 



A large tropical and subtropical genus of about 160 species, 

 especially abundant in America; also found in Africa, Asia, a few 

 in Australia, and two in Europe. The species vary much in habit, 

 though in North America many of them grow on sandy land. 

 Most of them are not hardy in the Northern States. 



Considering its great size, the genus is very well defined, and 

 readily distinguished from Panicum by the inflorescence, and by the 

 technical character of the absence of the first empty glume. 

 Neither of these characters is absolutely constant. A few Panica 

 of the section Brachiaria have the inflorescence of Pas^palnm ; and 

 the lowest glume is frequently reduced to a small callus, or is 



