322 HORTUS GRAMINEUS WOBURNENSIS. 



POA distans. Reflexed Meadow-grass. 



Glyceria distans. Reflexed sweet-grass. Sm. Engl. Fl. i. 

 p. 118. 



Poa retrqflexa. Curtis, Lond. 



Poa salina. Pollich. pal. n. 92. 



Aira aquatica. B. Huds. Angl. 34. 



Specific character: Panicle equal, divaricated; branches finally 

 reflexed ; spikelets linear, five-flowered ; florets blunt, distant, 

 obsoletely 5-nerved. 



Obs. Culms from six to eighteen inches high, round, striated, 

 smooth, obliquely ascending, procumbent from the base to 

 the first joint, sending out branches. Leaves with long 

 sheaths, sharpish, even, glaucous, flat ; the root-leaves a little 

 rolled in. Panicle erect, with the branches in half whirls, 

 angular, rugged, somewhat flexuose, branches of various 

 lengths ; finally much bent. Spikelets linear, from 4 to 

 7-flowered, variegated with white or purple. Florets remote, 

 sub-cylindrical, very blunt, retuse, 5-nerved, scariose at the 

 tip, with the inner glumes emarginate. E. Bot. t. 986'; 

 Host. ii. p. 46, t. 63 ; Curt. Lond. fasc. 61 ; Wither, t. 25. 



Native of Britain. Root fibrous. Annual when cultivated in 

 exposed situations. Perennial in its natural place of 

 growth. 



German, Entferntbluthiges-Rispengras. 



Experiments. At the time of flowering, the produce from a 

 sandy loam is 



Produce per Acre, 

 dr. qr. Ibs. 



Grass, 7 oz. The produce per acre - - 4764 6 



80 dr. of grass weigh, when dry - 22 7 1310 3 



The produce of the space, ditto 30 3-* 5 



The weight lost by the produce of one acre in drying 3454 3 



64 dr. of grass afford of nutritive matter 2 "> 



The produce of the space, ditto 3 2 J 



Mr. Curtis observes of this grass, that though at first sight it 

 bears a near resemblance to the Poa annua, and no doubt is often 

 mistaken for it, yet it is considerably taller, its leaves narrower in 

 proportion, and much more glaucous ; its spikelets are also much 

 narrower, as well as longer, and of course contain many more 

 florets, which are, for the most part, prettily variegated with pale 

 green and purple ; but the chief character which distinguishes this 



