TRIANDRIA— DIGYNIA. Poa. 127 



y is remarkable for a glaucous hue of the whole herbage, less evi- 

 dent in Ehrhart's own specimen of his P. humilis, which is cer- 

 tainly my subccerulea. The stem is but a span high ; the Leaves 

 short, broad and flat. The panicle is much smaller and less 

 branched than in the common pratensis ,• the spikelets similar, 

 except in their glaucous colour, more pointed calyx, and rather 

 more turgid and less angular Jlorets, 3 in number, whose con- 

 necting web is extremely copious, so as to be visible without 

 pulling them asunder. Nevertheless, I submit to the opinion of 

 the accurate Schrader, who has, like myself, examined speci- 

 mens, and is a competent judge. The stipulas of the above 3 

 varieties are all alike. 



As an object of agriculture P. pratensis is not less valuable than 

 the trivialis. It is earlier in leaf, and will thrive with less 

 moisture, though the latter produces, at last, a better crop. 

 Mr. Curtis and several other able botanists have rendered great 

 service to the farmer in directing his attention to such objects, 

 and it is undoubtedly worth his while to be select in seed for 

 grass lands. But, after all, Nature is supreme in the accommo- 

 dation of particular grasses to certain soils and situations, and 

 whatever we may sow, unless we have well studied her laws, 

 she finally triumphs. 



7. P. annua. Annual Meadow-grass. 



Panicle widely spreading. Spikelets ovate, five-flowered. 

 Florets a little remote, five-ribbed, without a web. Stems 

 oblique, compressed. 



P. annua. Linn. Sp. PL 99. Willd. v. 1 . 390. Fl. Br. 105. Engl. 

 Bot. v. 16. t. 1141. Curt. Lond.fasc. l.t.6. Mart. Rust. t. 98. 

 Stilling [fl. t. 7. Knapp t. 52. Hook. Scot. 35. Schrad. Germ, 

 v. 1. 304. Host Gram. v. 2. 46. t. 64. Leers 29. t. 6./. 1. Ehrh. 

 Calam. 106. 



P. n. 1466. Hall. Hist. v. 2. 223. 



Gramen pratense paniculatum minus. Bauh. Thealr. 30. /. 3 1 . 

 Scheuchz. Agr. 189. t. 3./. 17, E. 



G. pratense minus, seu vulgatissimum. Rail Syn. 408. 



G. pratense minimum album. Moris, v. 3. 201. sect. 8. t. 5./. 21. 



G. minimum album. Ger. Em. 3.f. 



In meadows, pastures, waste and cultivated ground, every where, 

 except in alpine situations. 



Annual. April — November. 



Root fibrous. Stems several, pale, very smooth, somewhat com- 

 pressed, leafy, jointed, branched at the base, spreading in every 

 direction, and taking root at many of their lower joints ; their 

 length from 3 to 1 2 inches. Leaves of a fine light green, spread- 

 ing, linear, bluntish, flaccid, roughish at the edges only, flat, 

 except a crumpled portion here and there, characteristic of the 



