384 97. GRAMINEA. 
—The name of Ammophila was given to a genus of Hymenopte- 
rous insects by Kirby in 1798.—Sandy sea-shore, bmding the 
shifting sands. P. VII. Sea-reed. Marram. 
18. Puracmites Jrin. Reed. 
1. P. communis (Trin.); panicle diffuse, spikelets 3—5-flower- 
ed, fl. longer than the glumes.—Arundo Sm., HE. B. 401. P. 
29.—St. 5—6 feet high, erect. Panicle large, purplish. L. flat, 
broad.—Dr. Bromfield mentions (Phyt. 1. 146.) a state with pro- 
strate stems 20-—40 feet long; found on the south coast of the 
Isle of Wight.—Marshes. P. VIII. 
Tribe VII. Chloridee. 
19. Cynopon Rich. 
1. C. Dactylon (Pers.); spikes 3—5 digitate, pales smooth 
edges and keel slightly ciliated, 1. downy beneath, scions prostrate. 
—E. B. 850. P. 72.—Creeping. Scions long, branched. 
Flowering st. 4—6 in. high, termmating in a single cluster of 
spreading many-flowered slender spikes. Spikelets purplish. L. 
on the barren shoots flat, spreading.—Sandy shores. Dorset. 
Devon. Cornwall. P. VIII. E. 
20. Spartina Schreb. 
1. S. stricta (Roth) ; 1. joimted to their sheaths shorter than 
the spikes, spikes 2—3, rachis scarcely extending beyond the 
last spikelet, outer gl. hairy.—H. B. 380.—St. 1—2 feet high. 
L. narrowing to the base where they easily separate from their 
sheaths. Spikes pressed close together. A remarkably rigid 
plant.—Muddy salt marshes. P. VIII. E. 
2. S. alterniflora (Loisel.); 1. continuous with their sheaths 
as long or longer than the spikes, spikes numerous, rachis pro- 
duced beyond the spikelets and flexuose, outer gl. glabrous.— 
E. B. 8. 2812. P. 75.—St. 2—3 feet high. L. broadest at the 
base and not separating from their sheaths more easily than at 
any other part. Spikes pressed close together.— Mud-flats in the 
river Itchin at Southampton. P. VIHI. E. 
Tribe VIII. Oryzee. 
21. Lerrsta Soland. 
1, L. oryzoides (Sw.); panicle patent with wavy branches, 
spikelets 3-androus half-oval ciliated on the back.—E. B. S. 2908. 
—Creeping. St. 1—2 ft. high, “never procumbent and rooting 
