422 



GRAMINE^E. 



Paspalum. 



2. Paspalum setaceum, Michx. Hairy Slender Paspalum. 



Culm erect or decumbent, slender ; leaves and sheaths hairy ; spikes mostly two, one of 

 them on a long, the other on a short peduncle from the same sheath ; spikelets in two rows. 

 — Michx. fl. 1. p. 43 ; Ell. sk. 1. p. 104 ; Tort: fl. \ . p. 76 ; Beck, hot. p. 399 ; Kunth, 

 enutn. 1. p. 55 (excl. syn. P. ciliatifolium, Michx.) ; Darlingt. fl. Cest. p. 43 ; Trin. Pan. 

 gen. p. 55. P. pubescens, Muhl. gram. p. 92. P. ciliatifolium, Torr. 1. c. ; Gray, Gram. 

 Sf Cyp. 1. no. 24, not of Michx. P. debile, Michx. I. c. 



Perennial. Culm mostly prostrate, 1-2 feet long, smoothish. Leaves about 2 lines wide, 

 commonly very hairy, and ciliate on the margin. Peduncle of the terminal spike 2-6 inches 

 long, arising from the uppermost sheath. From the same sheath usually proceeds another 

 spike, on a much shorter peduncle, but sometimes it is only partially or not at all exserted. 

 Rachis very narrow, convex on the back, hairy at the base. Spikelets two, on a short forked 

 pedicel which is closely appressed to the rachis, less than a line in length. Glume and paleae 

 of the neuter flower orbicular-ovate. Perfect flower as long as the glume, very smooth and 

 shining. 



Sandy fields : common. August September. 

 10. MILIUM. Linn. ; Endl. gen. 762. MILLET grass. 



[ Said to be from millc, a thousand ; because of its fertility.] 



Spikelets 2-flowered. Glume single, membranaceous, concave. Lower flower neuter, and 

 consisting of a single palea resembling the glume : upper flower perfect, the palea? awnless : 

 lower palea concave, and embracing the upper. Stamens 3. — Panicle branched, diffuse. 

 Spikelets pedicellate ; the pedicels not articulated. 



1. Milium effusum, Linn. Millet Grass. 



Panicle widely diffuse, compound ; glumes ovate, very obtuse ; leaves flat, smooth ; root 

 perennial. — Linn. sp. 1. p. 61 ; Engl. hot. t. 1106 ; Muhl. cat. p. 9 ; Torr. fl. 1. p. 77 ; 

 Trin. diss. p. 246, Pan. gen. in mem. acad. St. Petersb. (ser. 6.) p. 120 ; Kunth, enum. 

 1. p. 66. 



Rhizoma creeping. Culm 3-6 feet high, erect, simple, smooth. Leaves 8-12 inches 

 long and nearly half an inch wide, smooth underneath, roughish above : ligule oblong. Panicle 

 oblong, 6-10 inches long ; the lower branches clustered ; upper ones opposite. Flowers 

 rather few, and scattered. Glumes roughish, obscurely 3-nerved. Paleae nearly equal, rather 

 acute. Scales ovate-lanceolate, entire. 



Mountain meadows, and borders of streams, northern and western counties : frequent. 

 July - August. Our plant seems to be identical with the M. effusum of Europe. 



