eyS GRAMiNKM 



38. Glyceria (Manna-grass.)— Tall, semi-aquatic, perennial 

 grasses, with unsplit leaf-sheaths; spikelets panicled, awnless, 

 many-flowered; glumes unequal, membranous, obtuse; -flowering 

 glume sub-cylindric, 3 — o-ribbed, obtuse. (Name from the Greek 

 glukeros, sweet, in allusion to the sweetness of the grain.) 



GLYCERIA FLUITANS 



(Flote-grass, Manna-croup). 



glyc£ria aquatica 

 (Reed Manna-grass). 



i. G. fluitans (Flote-grass, Manna-croup). — Root-stock creeping; 

 stem 1 — 3 feet, thick, hut weak, smooth, floating, or creeping; 

 leaves often floating, flat, acute, with long, compressed, striate 

 sheaths ; panicle slender, about a foot long, slightly branched, 

 branches erect in fruit ; spikelets few, linear, adpressed, \ — 2 in. 

 long, 7 — 20-flowered ; flowering glume nearly thrice as long as 



