Part 3, 19lSl POACEAE 



257 



thick and firm, 4-8 cm. long, 4^8 mm. wide, glabrous on the upper surface, puberulent beneath, 

 gradually narrowed to the sharp point, the lower ascending, the upper spreading or often re- 

 flexed; panicles ovoid, 3-8 cm. long, two thirds to three fourths as wide, rather densely flowered, 

 the slender branches usually stiffly ascending, with short spikelet-bearing branchlets in the 

 axils; spikelets 1.1-1.2 mm. long, 0.7 mm, wide, elliptic, pubescent; first glume one fourth as 

 long as the spikelet; second glume slightly shorter than the fruit and sterile lemma; fruit 1 mm. 

 long, 0.7 mm. wide, elliptic. 



Autumnal culms more or less reclining, the branches spreading, usually somewhat recurved, 

 with crowded branchlets and spreading, subinvolute, reduced blades about equaling the re- 

 duced panicles of few long-pediceled spikelets; winter rosette prominent, the blades 

 glabrous. 



Type locality: Apalachicola, Florida. 



Distribution : North Carolina to Florida, and west to Louisiana. 



Illustration: Contr. U. S. Nat. Herb. 15: /. 211. 



132. Panicum Wrightianum Scribn. Bull. U. S. Dep. Agr. Agrost. 11 : 



44. 1898. 



Panicum strictum Bosc; R. & S. Syst. Veg. 2: 447. 1817. Not P. strictum R.'Br. 1810. 

 Panicum minutulum Desv. Opusc. 87. 1831. Not P. minutulum Gaud. 1826. 

 Panicum deminutivum Peck, Bull. N. Y. State Mus. 116: 27. 1907. 



Vernal culms weak and slender, ascending from a decumbent base, or rarely at first erect, 

 15-40 cm., or rarely 60 cm., high, minutely puberulent; leaf-sheaths striate, shorter than the 

 internodes, glabrous, except the summit and ciliate margin, or puberulent; ligule 2-3 mm. long; 

 blades spreading, 2-4 cm. long, 3-5 mm., or rarely 6 mm. wide, glabrous or puberulent beneath 

 and minutely pilose above; panicles oblong-ovate, 3-6 cm. long, one third to half as wide, the 

 branches ascending, the minute spikelets long-pediceled; spikelets 0.95-1 mm. long, 0.5 mm. 

 wide, ellipsoid, turgid, subacute, pubescent; first glume about one fourth as long as the spikelet; 

 second glume shorter than the fruit and sterile lemma; fruit 0.8 mm. long, 0.5 mm. wide, 

 subacute. 



Autumnal phase decumbent-spreading, the culms sending out from the lower and middle 

 nodes numerous ascending branches, becoming somewhat bushy-branched, the flat or subin- 

 volute blades and secondary panicles not much reduced. 



Type locality: Cuba. 



Distribution: Massachusetts to Florida, and west to eastern Texas; Cuba. 

 Illustrations: Bull. U. S. Dep. Agr. Agrost. 11: /. 4; 17: /. 357; Contr. U. S. Nat. Herb. 

 15: /. 213. 



133. Panicum meridionale Ashe, Jour. Elisha Mitchell Soc. 15: 59. 



1898. 



■i 



Panicum filiculme Ashe, Jour. Elisha Mitchell Soc. 15: 59. 1898. 



? Panicum microphyllum Ashe, jour. Elisha Mitchell Soc. 15: 61. 1898. 



Panicum unciphyllum meridionale Scribn. & Merr. Rhodora 3: 123. 1901. 



Vernal phase tufted; culms 15-40 cm. high, pilose below, the upper portion and the axis 

 of the panicle appressed-pubescent, or the latter often nearly glabrous; lower leaf -sheaths 

 pilose, upper minutely appressed-pubescent; ligule 3-4 mm. long; blades 1.5-4 cm. long, 2-4 

 mm. wide, long-pilose on the upper surface, the hairs erect, less dense than in P. implicatum; 

 panicles 1.5-4 cm. long, nearly or quite as wide, ovate or rhombic, the branches ascending; 

 spikelets 1.3-1.4 mm. long, 0.8 mm. wide, obovate, obtuse, minutely papillose-pubescent; 

 first glume one fourth to one third the length of the spikelet, acute or subacute; second glume 

 and sterile lemma equal, as long as the fruit at maturity; fruit 1.2 mm. long, 0.8 mm. wide, 

 broadly elliptic, obscurely pointed. 



Autumnal phase erect or nearly so, with fascicled branchlets from all the nodes; leaves 

 and panicles not greatly reduced, the latter included late in the season ; winter leaves lanceolate, 

 long-pilose toward the base, the rosette formed rather late. 



Type locality: Chapel Hill, North Carolina. 



Distribution: Rhode Island to Wisconsin, and south to Alabama. 



Illustrations: Contr. U. S. Nat. Herb. 15: /. 215; Britt. & Brown, 111. Fl. ed. 2./. 362. 



