508 _ THE GRASS FAMILY, ieee 
elume bearing usually a bent or twisted often dorsal awn; palea 2-nerved, volte 
thin or small. Sub-tribe Agvostridece : Spikelet 1-flowered, fruiting glume and small 
palea usually very thin :—10. MIBORA ; 13. AGROSTIS; 14. GASTRIDIUM ; 11. LAGURUS ; 
16. CALAMAGROSTIS ; 15. PSAMMA. Sub-tribe Avenace : Spikelet 2- or few-flowered, 
rarely 4-flowered, fruiting glume and palea more developed and firmer than in 
Agrostidee. 8. PHLEUN; 20. HouLcus; 17. AIRA; 18. AVENA; 19. ARRHENA- 
THERUM. 
SS, ASTREPT®. Spikelets with several, more rarely 1 or 2, perfect flowers. 
Flowering glumes unawned or terminating in straight awns; palea prominently 2- 
nerved or 2-keeléd, usually as long or nearly as long as the glume. Sub-tribe 
Miliec : Spikelets paniculate, 1- or 2-flowered, the rachis not produced beyond the 
flower :—2. MILIUM. Sub-tribe Chloridee: Spikelets 1- or several-flowered, sessile 
along the simple branches of the panicle :—21. CYNODON ; 22. SPARTINA. Sub-tribe 
Hordeinee : Spikelets 1- or several-flowered, sessile in the notches of a simple 
spike :—23. LEPTURUS; 24. NARDUS; 25. ELYMUS ; 26. HORDEUM; 27. AGROPYRUM; 
28. LOLIUM; 29. BRACHYPODIUM. Sub-tribe Festucee : Spikelets several- flowered, 
pedicellate 30. BROMUS ; 31. FESTUCA; 32. DACTYLIS; 33. CYNOSURUS; 34. BRIZA; 
35. POA; 36. CATABROSA ; 27. MOLINIA ; 38. MELICA ; 39. TRIODIA ; 40, KQLERIA ; 
41, SESLERIA; 42, ARUNDO. 
Among the exotic genera occasionally cultivated in our fields or 
aioe may be mentioned Rye (Secale cereale), the Maize or Indian 
Corn (Zea Mays); and the Feather-grass (Stipa pennata), a native of 
southern Hurope, once supposed to have been found in Westmore- 
land. 
I, LEERSIA. LEERSIA. 
Spikelets loosely panicled, 1-flowered, flat, consisting of only 2 glumes 
both of them keeled, without any inner 2-nerved palea. Stamens in 
the British species 3, in most exotic ones 6, 2, or 1. 
A small genus, chiefly American, with 2 or 3 of the species spread 
over the warmer regions of the Old World and Australia. This genus 
appears to be a Phalaridea reduced to the terminal pair of glumes. In 
the adjoining genus Oryza (the Rice) the intermediate small empty 
pair is present, in both the outer empty pair below the articulation is 
deficient. 
1. L. oryzoides, Sw. (fig. 1158). Common Z.—Stems about 2 feet high, 
the leaves, especially their sheaths, very rough. Panicle, when fully 
developed, loosely branched, spreading, 6 or 8 inches long, but in the 
British specimens usually much shorter, and partially included in the 
sheath of the last leaf. Spikelets numerous, all serund, 2 to nearly 3 
lines long ; the first glume rather broad, with 2 nerves on each side of 
the keel; the second much narrower, with 1 faint nerve on each side. 
In wet places, ditches, and marshes, common in North America, 
extending over a great part of Asia, and more sparingly across central 
Europe to France and Denmark, reappearing in the tropics of both 
worlds. In Britain found only in Hampshire, Sussex, and Surrey. /. 
autumn. 
IJ. MILIUM. MILIUM. 
Spikelets loosely panicled, 1-flowered without awns. Empty glumes 
2, concave nearly equal. Flowering glume concave, of.a firmer texture, 
hard and shining when in fruit. 
A genus of very few species, but widely dispersed over the globe, 
usually placed amongst Punicew, on account of the hardened fruiting 
