LEEESIA. PSAMMA. 425 



Suborder II. Euryanthece. Tribe VII. Oryzea. 



14. Leek'sia Soland. Cut-grass. 



1. L. m-yzoidea (Sw.) ; pan. patent with wavy branches, 

 spikelets 3-androus half-oval, keel ciliate.— jE. B. S. 2908.— 

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

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

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

 usually fertile.— Marsh-districts in Sussex, Surrey, and Hamp- 

 shire. P. Vni. IX. E. 



Tribe VIII. StipacefB. 



15. Sii'PA Linn. Feather-grass. 



[<S. pennitta (L.) ; awn very long twisted feathery its bslse 

 glabrous. — Awns remarkably long. — Not a native. Common 

 in gardens. P. VI.] E. 



16. MiL'nna: Linn. Millet-grass. 



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

 lanceolate-linear. — S. 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. Agrostide<s, 



17. Phbagmi'tes Trin. Eeed. 



1. P. communis (Trin.) ; pan. diffuse, spikelets 1 — 6-flowered, 

 fl. exceeding the glumes. — Arundo L., B. B. 401. P. 29. — 

 St. 6 — 6 feet high, erect. Pan. large, purpUsh. Spikelets 

 usually 3 — 6-fl., or 1 — 2-fl. in P. nigricans Dum. L. flat, broad. 

 Soboliferous ; soboles rarely aerial and 20 — 40 ft. long (Phytol. 

 i. 146).— Marshes. P. VHI. E. S. I. 



18. Psam'ma Pal. de Beauv. Marram. Bent. 



1. P. arendria (R. & S.) ; pan. cylindrical rather thicker at 

 the middle, gl. and pales linear-lanceolate acute, hairs \ the 

 length of the pale. — Arundo L., -B. B. 520. Ammophila (Host) 

 j> 8. — St. erect, stiff, 2 — 3 feet high. L. rigid, involute, acute, 

 glaucous. Panicle straw-coloured. — Sandy sea-shore, binding 

 the shifting sands. P. VH. E. S. I. 



