362 
GRAMINEjE. 
of Hymenopterous insects by Kirby in 1798. — Sandy sea-shore, 
binding the shifting sands. P. VII. Sea-reed. Marram. 
18, Phragmites Trin. 
1. P. communis (Trin.) ; panicle diffuse, spikelets 3 — 5-flower- 
ed, fl. longer than the glumes. — E. B. 401. R. 1729. Par. 29. 
— St. 5 — 6 feet high, erect. Panicle large, purplish. L. flat, 
broad. — Dr. Bromfield mentions (Phyt.i. 146.) a curious variety 
with prostrate stems 20 — 40 feet long, which is found on the 
south coast of the Isle of Wight. — Marshes. P. VIII. 
Tribe VII. Chloride®. 
19. Cynodon Rich. 
1. C. Dactylon (Pers.) ; spikes 3 — 5 digitate, paleee smooth, 
L downy beneath, scions prostrate. — E. B. 850. R. 1404. — 
Roots creeping. St. with long branched scions, flowering st. 
4 — 6 in. high terminating in a single cluster of spreading many- 
flowered slender spikes. Spikelets purplish. L. on the barren 
shoots fiat, spreading. — Sandy shores of Devon and Cornwall. 
P. VIII. ' E. 
20. Spartina Schreb. 
1. <S. siricta (Roth) ; 1. articulated to their sheaths shorter 
than the spikes, spikes 2 — 3, rachis scarcely extending beyond 
the last spikelet, outer glume hairy. — E. B. 380. R. 1401. — St. 
1 — 2 feet high. L. narrowing to the base where they easily se- 
parate 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 fiexuose, outer glume glabrous. 
— E. B. S. 2812.— 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 Itchen at Southampton. P. VIII. E. 
Tribe VIII. Sesleriecs. 
21. Sesleria Scop. 
1. S. ccerulea (Scop.) ; spike ovate slightly 1 -sided, outer palea 
terminating in 4 teeth : the dorsal rib rough with a short excur- 
rent point, I. abrupt with a minute rough point. — E. B. 1613. 
R. 1510. Par. 27— Roots tufted. St. 6—12 in. high. Spike 
about half an in. long, bluish-purple. Styles combined. Stigmas 
very long, linear, at first combined almost to the summit, after- 
wards separate. — Mountains. P. IV. V. 
