182 TLUANDKIA— DIGYNIA. Triticum. 



Cal, of 2 concave, oblong, ribbed or keeled, nearly equal, 

 opposite valves, with or without terminal awns. Florets 

 3 or more, 2-ranked, applied laterally to the main stalk. 

 Outer valve of the corolla resembling the calyx, concave, 

 keeled or furrowed, pointed or awned ; inner flat, awn- 

 less, indexed on each side at the lateral rib. Nectary of 

 2 acute scales, tumid at the base. Filam. capillary. Anl/i. 

 linear, forked at each end. Germcn turbinate. Slijles 

 short, distinct. Stigmas feathery. Seed ovate, obtuse, with 

 a narrow channel along the upper side, loose, but en- 

 veloped in the unchanged corolla. 

 Root annual, or perennial. Habit various. Stem simple or 

 branched. Spikes simple and close, or compound and lax. 



1. T.junceum. Sea Rushy Wheat-grass. 



Calyx-valves blunt, many-ribbed. Florets about five, awn- 

 less. Main stalk smooth. Leaves involute, sharp-pointed. 

 Root creeping. 



T. junceum. Linn. Sp. PI. 1 28. Willd. v. 1 . 480, excl. most of the 

 syn. Fl. Br. 157. Engl. Bot. v. 12. t. 814. Knapp t. 1 13. Hook. 

 Scot. 44. Dicks. H. Sicc.fasc. 6. 9. Schrad. Germ. v. 1. 394. 

 Host Gram. v. 3. 23. t. 33. Fl. Dan. t.9\6. 



Gramen maritimum, spica loliacea, foliis pungentibus, nostras. 

 Pluk. Phijt. t. 33./. 4. DHL in Rail Syn. 391. 



/3. G. loliaceum maritimum supinum, spica crassiore. Toum. Inst. 

 51G. Dill, in Rail Syn. 39 1. 



y. G. caninum maritimum, spica foliacea. Bauh. Theatr. 15. /. 

 Raii Syn. 391. Moris. v.S. 178. sect. 8. 1.2. f. 12. 



G. caninum marinum alteram. Ger. Em. 25./. 



On the sandy sea coast, frequent. 



Perennial. July, 



Root widely creeping", with numerous woolly fibres, well calculated 

 for binding the loose sand, which purpose it serves in common 

 with Elymus arenarius, Arundo armaria, &c. The whole plant 

 is glaucous and rigid, like those grasses. Stem 12 or 18 inches 

 high, simple, inclining, leafy, round j very smooth, even and 

 polished, tinged with a bright violet hue, below j striated above. 

 Leaves strongly involute, many-ribbed ; smooth at the back ; 

 marked with rough furrows on the upper side ; tapering and 

 pungent at the point. Sheaths furrowed. Stipula very short, 

 membranous. Spike simple, solitary, erect, rigid, of numerous, 

 alternate, rather distant, flat, ovate spikelets, each consisting of 

 5 or 6 smooth, awnless, Jlorets. Calyx, and outer valve of the 

 corolla, many-ribbed, furrowed, keeled at the upper part, each 

 valve terminating in a slight notch, with a small, thick, inter- 

 mediate point, produced from the keel, most evident in the upper 



