256 NORTH AMERICAN FLORA [Vomjmb 17 



Autumnal phase more or less reclining, branching after the maturity of the primary panicle, 

 the earlier branches elongate, ascending but not appressed, bearing exserted panicles, the sub- 

 sequent branchlets in short fascicles, the blades much reduced, sometimes minutely pubescent, 

 overtopping the small ultimate panicles; winter rosette appearing rather early, the blades- 

 glabrous or nearly so. 



Type locality: New England. 



Distribution: Maine to Florida, and west to eastern Texas; northern Indiana. 

 Illustrations: Bull. U. S. Dep. Agr. Agrost. 17: /. 369, 371; 24: /. 9, 10; Contr. U. S. Nat. 

 Herb. 15: /. 205; Britt. & Brown, 111. Fl. 3: App. /. 267c; ed. 2./. 352, 353, 354. 



This species has often been referred to Panicum nitidum I/atn. (seepage 251). 



129. Panicum Lindheimeri Nash, Bull. Torrey Club 24: 196. 1897. 



Panicum Funstoni Scribn. & Merr. Circ. U. S. Dep. Agr. Agrost. 35: 4. 1901. 



Vernal culms stiffly ascending or spreading, 30-100 cm. high, glabrous, or the lower inter- 

 nodes ascending-pubescent, the nodes swollen; leaf -sheaths less than half as long as the elongate 

 internodes, ciliate on the margin, otherwise glabrous, or the lower ascending-pubescent; ligule 

 4—5 mm. long; blades usually firm, 5-10 cm. long, 6-8 mm. wide, at first ascending, soon spread- 

 ing, papillose-ciliate at the rounded base, glabrous on both surfaces, or minutely puberulent 

 beneath; panicles 4-7 cm. long (rarely longer), nearly as wide, the branches ascending or spread- 

 ing, loosely flowered; spikelets 1.4—1.6 mm. long, 0.8-0.9 mm. wide, obovate, obtuse, turgid, 

 pubescent ; first glume one fourth as long as the spikelet or less, usually obtuse ; second glume 

 and sterile lemma scarcely equaling the fruit at maturity; fruit 1.3-1.4 mm. long, 0.8 mm. 

 wide, elliptic, obtuse. 



Autumnal phase usually stiffly spreading or radiate-prostrate, the internodes elongate, with 

 tufts of short, appressed branches at the nodes; blades reduced, involute-pointed and often 

 conspicuously ciliate at base. 



Type locality: New Braunfels, Texas. 



Distribution: Maine to Florida, and west to Minnesota and California. 



Illustrations: Contr. U. S. Nat. Herb. 15: /. 207; Britt. & Brown, 111. Fl. /. 263 (as P. 



nitidum) ; ed. 2. /. 355. 



130. Panicum leucothrix Nash, Bull. Torrey Club 24: 41. 1897. 



? Panicum cariilagineum^'NLuhl. Descr. Gram. 128. 1817. 

 Panicum parvispiculum Nash, Bull. Torrey Club 24: 347. 1897. 



Vernal plants light olive-green, often purplish- tinged ; culms tufted, 25-45 cm. high, erect 

 or ascending, appressed papillose-pilose, the nodes scarcely swollen, pubescent; leaf -sheaths- 

 shorter than the internodes, papillose-pubescent, the hairs less appressed than those of the 

 culm, rarely nearly glabrous, the margins ciliate, densely so at the summit; ligule 3 mm. long; 

 blades rather firm, ascending or spreading, 3-7 cm. long, 3-7 mm. wide, rounded and papillose- 

 ciliate at the base, glabrous or rarely sparsely villous on the upper surface, velvety-puberulent 

 beneath; panicles long-exserted, 3-8 cm. long, about three fourths as wide, rather densely 

 flowered, the axis appressed-pubescent, with tufts of long hairs in the axils, the branches as- 

 cending; spikelets 1.2-1.3 mm. long, 0.7 mm. wide, ob ovate-elliptic, densely papillose-pubes- 

 cent ; first glume about one fourth the length of the spikelet, obtuse ; second glume and sterile 

 lemma equaling the fruit but not exceeding it; fruit 1.1 mm. long, 0.6 mm. wide, elliptic, slightly 



* 



pointed. 



Autumnal phase ascending, usually decumbent at base, at first sending out from the lower 



and middle nodes long branches similar to the vernal culms, later producing appressed, more 



or less fascicled branchlets, the flat or somewhat involute blades not greatly reduced. 



Type locality: Bustis, Florida. 



Distribution: New Jersey to Florida, and west to Louisiana; Cuba and Porto Rico. 

 Illustrations: Bull. U. S. Dep. Agr. Agrost. 17: /. 360; Contr. U. S. Nat. Herb. 15: /. 209; 

 Britt. & Brown, 111. Fl. ed. 2./. 356. 



131. Panicum longiligulatum Nash, Bull. Torrey Club 26: 574. 



1899. 



Vernal culms usually stout, 30-70 cm. high, erect, or ascending at base, glabrous; leaf- 

 sheaths glabrous, usually much shorter than the internodes; ligule 2-3 mm. long; blades rather 



