LEBESIA.-^PSAIIMA. 405 



Lower pale witli a short rougliawn, coriaceous, often purplish; 

 upper membranous. — Moors and heaths. P. Vll. E. S. I. 



Suborder II. Euryanthece. Tribe VII. Oryzem. 



14. Lebrs'ia Solandi Cut-grass. 



1. L. oryznides (Sw.); pan. patent with wavy branches, 

 sjikelets 3-androus half-oval, keel raliate. — E. S. 8. 2908.- — 

 Creeping. St. 1 — 2 ft. high. L. broad, rough-edged ; uppar- 

 most horizontal at the flowering-season. Pan. mostly enclosed 

 in the sheath of the uppermost leaf. ■ The included fl. alone are 

 fertile. — Marah-ditehes in Sussex, Surrey, and Hampshire. P. 

 Mil. IX. E. 



Tribe VIII. Stipaceee. 



15. Sii'Pi. Linn. Feather-grass. 



S8. pemidta (L.) ; awn very long twisted' feathery its base 

 srous. — Awns remarkably long. — Not a native. Common ■ 

 in gardens. P. VI.] E. 



16. Mil'ium Linn. Millet-grass. 



1. M. effusum (L.) ; pan. diffuse, pales acute, st. smooth, 1. 

 lanceolate-linear.^-B. B. 1106. P. 17. — Stoloniferous. St. 

 •3 — 4 feet high. Branches of the panicle long, in distant alter- 

 nate tufts, in flower horizontal, afterwards deflexed. — Damp 

 shady woods. P. VI. E. S. I. 



Tribe IX. Agrostidece. 



17. Peeasmi'tes ZVm. Eeed. 



1. P. communis (Trin.) ; pan. diffuse, spikeleta 3 — 5-flowered, 

 fl. exceeding the glumes. — Arumto Sni., E. B. 401. P. 29. — ■ 

 Stl 5 — 6 feet high, erect. Pan. large, purplish. L. flat, broad. 

 Soboliferous ; sgboles rarely aerial, 20^-40 ft. long {Phytol. i. 

 146).— Marshes. P.Vm. ' , E.S.I. 



18. Psam'ma Pal. de Beauv. Maram. Bent, 



1. P. arendria (R. & S.) ; pan. cylindrical thickest at the 

 middle, gl. and pales linear Janceolate acute, lower pale 5-ribbed, 

 hairs } of the length of the pales. — Arundo Sm., E. JB. 520. 

 Ammophila (Host) P. 8. — St. erect, stifi^ 2 — 3 feet high. L. rigid, 

 involute, acute, glaucous. Panicle straw-coloured. — Sandy sea- 

 shore, binding the shifting sands, P. VII. E. S. I. 



