TRIANDRIA DIGVX1A 13 



Dir. I. Paxicejs — Panic-grass Tribe. 



fsELCREBCENci Spiked, or Panicled. Spikelets 1, or more usually, Q/lottered, 



trilh one of the Florets imperfect, or abort ire. G 1 umes generally men: bronaceoua, 

 sometimes aimed. Pnleae more or leas cartilaginous ; the letter pulca hv?f e?i- 

 n.l Hng the upper one ; mostly aimless* 



j- Spikelets l-Jlowered : Flowers all perfect. 



25. PASPALUM. /,. JSTutL Gen. 84. 

 [Creek, Paspalos, Millet; from the resemblance of its seeds ] 



Floxvers in unilateral Spikes. Glumes 2-valved, membranaceous, oqnal; 

 •nearly orbicular, closely pressed to the two plano-convex palese. Stir, 

 mas plumose, colored. Seed coated with the smooth cartilaginors 

 pale®. • 



1. P. setacettm, Jlfx. Culm slender, a little ]>ilosc above; leaves 

 and sheaths pilose ; spike mostly solitary ; flowers in two rows* Beck, 

 Hot. p. 399. 



P, pubescens. Muhl. Catal. p. 8. Ejusd. Gram. p. 92. Flcriti. 

 Cestr. />. 11. 



P. ciliatifolium. Gray, Gram. Srr.eijvf. no. 24. Also? Torr.JFL I, ft. 

 75. Eat. Man. p. 251. Not of JUS. Muhl. and EIL 

 Also? P. debile. Mr* Am. p. 44. Pursh, Am. 1. p. 70. .Muhl. 

 Catal. [). 8. Ejusd. Grain, p. 91. JYutt. Gen. I. p. 57. Ell. Sk. I. 

 p. 105. Eat. Man. p. 251. 

 Setaceous, on SLENDER Pa spa Lux. 



Root perennial. Culm erect, 1 to 2 feet high, smooth and purplish below! some- 

 what pilose and very slender above ; nodes glabrous, purple. Leaves n&rrowish 

 lanceolate, rather short, mostly very hairy on both sides; sheaths nerved, smooth, 

 pilose at throat and on the margin. Spike solitary, on a very long terminal pe- 

 duncle; often with another on a short peduncle, proceeding from the same sheath. 

 Rat his convex on the back, pilose at base. Florets plano-convex, alternate, some- 

 what in two rows, with the flat side out; pedicels short, bifid, or with each a little 

 bract-like process at base resembling an abortive floret. Glumes roundish ovate 

 smooth. Palea of the same form as the glumes, cartilaginous, very smooth and 

 shining, the lower one embracing the upper. Seed plano-convex. 



Hab. Sandy fields, and road sides ; frequent. Fl. Aug. Fr. September. 



Obs. I think Dr. Gray is mistaken, in making this synonymous with P. ciliati* 

 folium, of Mx. and Ell. I have specimens of the latter, received from Mr.Bllv 

 •tt himself; and they are apparently quite distinct from our plant. 



2. P. LJBVEj Mr. Culm rather stout, smooth ; leaves generally 



smooth, pilose at base ; spikes 2 to 6, alternate ; flowers in two rows 



Beck y Bot. p. 399. Specim. Gray, Gram. 1. no. 25. 



Also, P. precox. Mx. Am. 1. p. 44. Ell. Sk. 1. p. 106. according 



to Gray, I. c. 



Smooth Paspalcm. 



Root perennial. Culm erect, 16 inches, to 3 feet higH Leaves broad-linear 

 often long, generally smooth, pilose at base, just above the ligule ; lower sheaths 

 sometimes pilose. Spikes 2 to 6, with a few long white hairs at base, R*clm flex- 



