I’OA. 
391 
tlie florets. — High Torcc and other parts of Upper Teesdale. 
P. VII. K. 
10. P. Balfourii (Par.) ; ])aniele erect rather spreading, spike- 
lets ovate of 3 or -4 webbed tl., outer pale with 5 nerves the dorsal 
and marginal hairy, upper sheath about as long as its leaf, ujjper 
two-thirds of the stem without joints, lir/ule prominent obtuse . — 
P. ()(). K. R. S. 1?918. — Root creeping. St. 3 — 15 in. high; 
joints about 3, concealed by the sheaths, uj)permost within the 
lower third of the stem. (In specimens from Cheviot and In- 
glehorough the uppermost joint is e.xposed and placed slightly 
higher.) Lower fl. as long as the larger glume. — Tops of moun- 
tains. Ingleborough, Yorkshire. Mr. J. Backhouse, Jun. Che- 
viot, Northumb. Perth and Forfarshire. P. VII. E. S. 
ttt Lower branches of the j)anicle subverticillate. Dorsal 
nerve of the outer pale hairy ; marginal glabrous. 
11. P. trivialis (L.); panicle diffuse, spikelets ovate of 2 or 3 
acute webbed tl., outer jjale with 5 nerves, upper sheath much 
longer than its leaf, ligule acute long. — E. B. 1072. P. 35. — 
Root tufted. St. 1 — 2 ft. high. Sheaths slightly rough. — j3. par- 
vifiora (Par.); spikelets small 1 — 2-flowered, )dant slender. — 
Moist and shady places. P. VI. 
** Root creeping by long stolo7is. 
12. P. pratensis (L.) ; panicle diffuse, spikelets ovate of 3 or 4 
webbed fl., outer pale with 5 prominent nerves the dorsal and 
marginal haii'y-, upper sheath much longer than its leaf, ligule 
prominent obtuse. — E. B. 1073. P. 31 — 34.— Very variable in 
size. St. and sheaths nearly always smooth. Fl. strongly web- 
bed. — 13. subceerulea ; spikelets broader, 1. broad and short, ujj- 
per 1. compressed rounded at the end behind. E. B. 1004. — 
y. angustifolia ; sj)ikelets small, 1. slender long, lower 1. involute. 
—Common. P. VI. VII. 
13. P. compressa (L.); jianicle rather unilateral spreading 
when in flower otherwise close, spikelets ovate or oblong-ovate 
of 5 — 7 obtuse slightly webbed fl., outer pale with 3 hairy nerves, 
upper sheath about as long as its leaf, uppermost joint at about 
the middle of the stem, ligule short obtuse. — E. B. 365. P. 37. — 
St. decumbent at the base, then erect, very much compressed, 
1 — 1 k ft. high. Outer pale with no intermediate nei-ves. — sub- 
compressa; outer pale distinctly 5-nerved, intermediate nerves 
glabrous. P. subcomj)ressa P. 90. This differs in look from 
P. compressa, but is, I feai’, scarcely distinct from jt. — Drv situa- 
tions. P. VII. 
14. P. polynoda (Par.); panicte erect ovate-lanceolate, spike- 
lets ovate or ovate-lanceolate of 4 or 5 not webbed ji., outer pale 
