PANICK.E. 95 



Florida to 'I'exas in saliiu' swamps. 



2S. P. notatum KIiiji:,iri', (irain. N[oiio^'. 106 (1810). 



Culnia 50-TO cm. Iiigli, ascc'iidinjf from a stout root-stock. 

 Leat'-bhules narrow, smooth. Spikes "i. oxsorted, diverjfinj;. 7-1 

 cm. long, approximate, l)oth sossili', rachis Hat on tlu* back, 1 mm. 

 wide. Spikelets smootli, sin^de. in two rows, those in tlie same 

 row in tlie ini(hUe of the spike overhippinj,' one fourtli of their 

 h'Mi^'th, ovate or oval, ohtust', ',].5 mm. long: tirst ghime tlr'n, with 

 two prominent nerves toward each margin, second firmer, 5-nerved. 



From l)allast f(»und at Camden, N. .1., eoll. l)v Scribner. 



Near the (in! f coast, West Indies, Mexi<'o, Brazil. 



'.>i). P. praecox >\'alt. Kl. Car. 75 (ITSS). /'. Imtifrrutti Lam. 

 Illustr. 1: i:,-) (in*!). 



Culms simple, smooth. (lO-l'-iO cm. high, much exserted. Leaf- 

 l)lades smooth or hairy below, lo-.'JO c!n. long. 15 mm. wide. 

 Spikes 3-(), 4-0 cm. long, separated about their own length from 

 each other, rachis 1 mm. wide. S})ikelets single, in two rows, 

 those in a row ovei-hipiiing for about half their length, or some of 

 the pedicels branching, then 3-4 rows, compressed. lU'arly orbicular, 

 or broad oval, '^.'^-.'5 mm. long, first and second glumes :}-nerved, 

 or two outer obscure nerves, making 5 in each. 



Florida, J. If. Ciir/iss li'MK Southern States. 



30. P. IsBve Michx. Fl. Uor. Am. 1:44 (180:}). 



Cidms upright or decumbent, simple, 60-1 '.'O em. high. 

 Sheaths compressed ; bhides Hat. smootli, 30 cm. long. 7 mm. wi<le. 

 Spikes 3-5, 5-10 cm. long, approximate, usually widely diverging, 

 rachis about 1 mm. wide, flcxuose or stiaight. S[)ikelets single, in 

 two rows, little if at all overhniping. broad-oval. 3 mm. long, first 

 and second glumes smooth, 5-nerved. Nearly allied to P. Flori- 

 'hi II II in ^lichx. Pa. (Phila.), Srribncr 3570. 



Moist soil ; South New p]ngland to Florida and Texas. 



31. P. giganteum lialdwin, ined. ; see Hull. Torr. Club, 13:166 

 (1886). 



Culms simple, 90-150 cm. high, exserted. Leaf-blades flat, 

 smooth, oreet, 35-50 cm. long, 2 em. wide. Spikes 3-4, 4-5-10 

 cm. apart, spreading, 15-:iO cm. long, rachis stout, round on the 



