42 TRIANDRIA DKiYNIA. [Poa. 



the base. E.rt. valves of the cor. ovato-lanceolate, acute ; dorsal rib 

 scabrous, no lateral ones : lower part villous, u[)y)er part glabrous, purple, 

 margin diaphanous : int. valves notched or bitid at the extremity. 



9. P. Idxa, Hsenk. (wavy Meadow-grass); panicle contracted 

 iax slightly drooping, spikelets ovate of about 3 acute florets 

 connected by a web, leaves narrow linear acute, ligules all lanceo- 

 late. — Pea fitxuosa, E. Bot. t. 1 123. 



Found on Ben Nevis by the late Mr John Madiay. Fl. July. 11- — 

 A very slender suhglaucous grass, scarcely able to support the weight 

 of its own panicle, which consecjuently droojts slightly. Leaves more 

 numerous tluiu in P. alpina, and much narrower. Florets very obscurely 

 ril)l)ed, ail very acute, green and purple, with diaphanous margins. Cal.- 

 valves nearly equal, pubescent on the keel, as is the cor., which is also 

 webbed, 



10. P. bulbosa, L. (bulbous 3Ieadoto- grass); panicle close stib- 

 spicate, spikelets ovate 4-flowered, florets downy at the keel con- 

 nected by a web, leaves with a white narrow serrated cartilagi- 

 nous margin, stems swollen at the very base. E. Bot. t. 1071. 



East and south of England, principally on sandy sea-shores. Fl. Apr. 

 May. 1[ . — A singular and very distinctly marked species, soon wither- 

 ing after flowering, and then its bulbs are blown about in large quantities 

 on the surface of the sand. It forms a great part of the herbage on the 

 Denes at Yarmouth. 



11. P. trividlis, L. (roughish Meadoio-grass) ; panicle diffuse, 

 spikelets oblong-ovate of about 3 florets which are acute 5- 

 iierved connected with a web, culms and sheaths roughish, ligule 

 oblong, root fibrous, E. Bot. t. 1072. 



Meadows and pastures, common, FL June, July, 1^. — 1 — 2 feet high. 

 Leaves linear, acute. Panicle much branched. — An excellent grass for 

 pasturage and for hay : as is the following species. 



12. P. pratensis, L. (^smooth- stalked 3Ieadoic-grass); panicle 

 diffuse, spikelets oblong-ovate of about 4 florets which are 

 acute 5-nerved webbed, culm and sheath smooth, ligule short, 

 root creeping. E. Bot. I. 1073. — (3. cmgustifolia ; smaller and 

 with narrower leaves. B. angustifolia, Linn. — y. subccerulea ; 

 smaller and glaucous. P. humilis, Ehrh. — P. subccEndea,E,Bot. 

 t. 1004. 



Meadows and pastures, frequent. — jS. " in woods." — y. on walls or dry 

 places, especially in alpine countries. i7. June, July. 1^. — Allied to the 



last, but very constant to the character above given /S. and y. appear 



to be starved states of the plant. 



13; P. annua., L. (annual Meadow-grass); panicle subsecund 

 divaricated, spikelets oblong-ovate of about 5 florets which 

 are a little remote 5-ribbed destitute of web, culm ascending, 

 compressed, root fibrous. E. Bot. t. 1141. 



Meadows and pastures, and by road-sides, everywhere. Fl. all spring 

 and summer. © . — Cuhns 6 — 10 inches long, below prostrate and throw- 

 ing out roots. Leaves distichous, linear, rather blunt, flaccid, often 

 waved, bright-green. Ligule oblong, acute. C«/.-valvcs very unequal, 



