Milium.] LXXXIX. GR AMINES. 509 



glume, but there is no articulation of the pedicel, and it seems better 

 to unite it with a few other exotic genera in a tribe or sub-tribe of 

 Poacece. 



1. Milium effusum, Linn. (fig. 1159). Spreading M. — A tall, slender 

 Grass, often 4 or 5 feet high, with rather short, flat leaves, and a long, 

 loose, slender, and spreading panicle of small, pale green or purple 

 spikelets. Empty glumes concave but not keeled, 1 to 1J lines long, 

 nearly smooth. Flowering glume almost as long, very smooth and 

 shining. Palea nearly similar but rather smaller, faintly 2 -nerved, and 

 notched at the top. 



In moist woods, widely spread over Europe, Asia, and North America, 

 extending from the Mediterranean to the Arctic Circle. Common in 

 Britain. FL summer. 



III. PANICUM. PANICUM. 



Spikelets either in a loose or close and spike-like panicle, or along one 

 side of the simple branches of a panicle, usually small, 1-flowered, rarely 

 awned. Outer glumes usually 3 ; the first or lowest small, sometimes 

 very minute, the next always empty, the third empty or with an im- 

 perfect or male flower in its axil. Flowering glume concave, of a 

 firmer texture, hard when in fruit. Palea like the flowering glume, but 

 rather smaller, and more or less 2-nerved. 



A vast genus, chiefly tropical or North American, with a very few 

 species spreading into Russian Asia and Europe, including most of 

 the cultivated Millets of southern Europe, Africa, and Asia. It is in 

 most cases easily recognised by the small outer glumes, although 

 in some species reduced to an almost microscopical scale. Many 

 botanists remove the following species into three separate genera distinct 

 from the true tropical Panicums. 



Spikelets 2 together, along one side of the linear, digitate 

 branches of the panicle. (Digitaria.) 

 Spike-like branches of the panicle 2 to 4 inches long . . . 1. P. sanguinale. 

 Spike-like branches not above an inch long . . . 2. P. glabrum. 



Spikelets crowded in a simple or branched, spike-like panicle. 

 Spike-like panicle cylindrical, the spikelets intermixed with 

 numerous, long, awn-like bristles. (Setaria.) 

 Bristles rough with reversed hairs, felt as the spike is drawn 



downwards through the hand 3. P. verticillatum, 



Bristles rough with erect hairs, felt as the spike is pushed 

 upwards through the hand. 

 Flowering glume marked with transverse wrinkles . . 4. P. glaucum. 



Flowering glume not wrinkled 5. P. viride. 



Panicle pyramidal, without awn-like bristles, but the spikelets 



sometimes coarsely awned (Echinochloa) . . . . 6. P. Crus-galli. 



1. P. sanguinale, Linn. (fig. 1160). Fingered P. — An annual, with 

 stems from 1 to 2 feet long, more or less spreading or creeping at the 

 base, then ascending or erect. Leaves flat, more or less hairy. The 

 panicle consists of 2 to 6, or rarely more, simple, slender branches, 

 2 to 4 inches long, and all spreading from nearly the same point at the 

 top of the peduncle, so as to appear digitate. Spikelets in pairs along 

 one side of these branches, one sessile, the other shortly stalked, each 

 about 1 line long. First glume very minute, almost microscopic ; the 

 second concave, and about half the length of the third, which is nearly 



