coRTNEPnoRra. — aiea . 
397 
glabrous, knots bearded.— E. B. 1170. P. 21 & 22.— Creeping. 
Height 1 — -2 feet. St. and 1. subglabrous or slightly hairy. 
Inflorescence not so compact as in the preceding, whitish. Gl. 
smooth. Lower fl. awnless ; but sometimes it has an awn ; 
rarely the upper is perfect. Occasionally the spikelets are much 
smaller and the plant only 12 — 18 in. high. — Thickets or open 
places on a light soil. P. VU. E. S. I. 
26. Coetne'phohtjs Pal. de Beauv. 
1. C. canes'cens (Beauv.) ; pan. rather dense long, gl. exceed- 
ing the fl. acuminate, awn from near the base of the pale, 1. seta- 
ceous.— ^?>a Sm., K B. 1190. P. 110.— St. tufted, slender, 
6—8 in. high. L. many. Pan. close, spreading with flowers ; 
branches short. Spikelets variegated with pm-ple and white. 
Anth. dark pm-ple. Lower portion of the awn dark yellow, 
straight, cylindrical, striated leng-thwise and slightly twisted; 
upper part clavate, white tinged with purple. — Sandy coasts of 
Norf., Sufi"., and Jersey. P. VI. VII. E. 
27. Ai'ra Linn. Hair-grass. 
• Lower pale truncate, jagged. Ntdfree, not furrowed on the back. 
t Awn straight. Deschampsia Beauv. 
1. A. caspitdsa (L.) ; pan. spreading, 1. flat, gl. slightly rough 
at the midrib, ami frotn below the middle of the pale and scarcely 
extending beyond its tip, ped. of second fl. downy or hairy. — 
£.^.1453. P. 2.3.— Root tufted. St. 1—4 feet high. L. 
rigid, roughish ; their margins involute when dry. Pan. -branches 
rough. Lower pale with 4 veins in addition to that which ends 
in the rough awn. Rudiment of third fl. often scarcely, if at 
all, distinguishable; or half the length of the upper fl. and 
somewhat clavate. — (3. brevifoliu (Parn.); radical 1. short, sheaths 
and st. smooth, panicle small. P. 106. Viviparous states are 
often called A. alpijia. — y. lonyiaristata (Pam.) ; awns exceeding 
the fl., sheaths rough. P. 105. — Meadows, thickets, &c. /3. and 
y. Mountains. P. Vll. E. S. I. 
tt Awn bent, twisted at the base. 
2. A. alpina (L.) ; pan. close, 1. mostly involute, gl. smooth 
on midrib, awn from above the middle of the pale and scarcely 
extending beyond its tip, ped. of second flower (glabrous?) very 
short.— i". 5. 2102. P. 23.— Height 6 —12 in. L. nan-ow, rigid', 
roughish on the upper surface. Pan.-branches quite or nearly 
smooth ; lower lax ; upper erect. Fl. often viviparous. — Tops of 
Highland mountains. P. VIII. S. 
