-^03, 





■eel 



«/ 



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con- 



i n- 



grass 





cate, 

 liar- 



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* * 



ities 



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t. 



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it 

 II' 



Poa.'] CVII. GRAMINE^. 553 



"I'- Oil 



?.^ pressed; dorsal rib scabrous, terminating in a very short point or 



awn, with two short lateral ribs or nerves at the base. Outer 

 glumellas ovate-lanceolate, acute ; dorsal rib and two lateral nerves 



stau margin diaphanous. 



silky, downy between them below 3 upper part glabrous, purple, 



14. P. Idxa Hsenk. (wavy M.) ; panicle contracted lax slightly 

 drooping, spikelets ovate, of 3 — 4 acute florets, outer glumellas 

 silky at the keel and marginal nerves glabrous between them, 

 upper sheath longer than its leaf, upper ligule long and acute, 

 g] , leaves all flat narrow linear acuminate, root fibrous. — P. flex- 



uosa-S. B, t.ll23. — a, panicle somewhat erect, florets connected 

 with a web, outer glumella with two intermediate glabrous 

 nerves. P. minor Gaud. — /3. panicle lax slightly drooping, florets 

 without a web, outer glumella without intermediate nerves. P. 

 laxa Parn, Gr, t, 38 (and most others); 



Ben Nevis, Mr. J. Mackay, Loch na Gar, and Clova mountains, 

 G. Don (since confirmed by Dr. Graham^ &c). %, 7, 8. — A verv 

 slender subglaucous grass, scarcely able to support the weight of 

 its own panicle. Leaves more numerous than In P. alpina, and much 

 narrower. Florets very obscurely ribbed, all very acute, green and 

 purple, with diaphanous margins, sometimes connected by a web, 

 sometimes free, often viviparous. Glumes nearly equal. Both varie- 

 ties have been found in each of the two localities. 



I 



TOW 15. P, nemordlis L. (Wood M.) ; panicle slender, spikelets 



than ovate or lanceolate of 2 — 5 florets, florets silky at the* keel and 



marginal nerves, uppermost sheath usually as short as its leaf, 

 ligule obtuse or truncate, root slightly creeping, — a. upper 

 sheath as short as the leaf, ligule extremely short truncate, 

 florets slightly webbed. P. B. t. 1265: Parn. Gr. t. 36.-/3. 

 uppermost sheath usually longer than its leaf, ligule extremely 

 short truncate, florets free. P. glauca Sm. (partly). P. Par- 

 ndXiBab.: E. B. S. t. 2916: Parn. Gr. t. 93.-7, uppermost 

 [^gj^ ! sheath as short as the leaf, its joint about the middle of the 



^5 I culm, ligule prominent obtuse, spikelets greenish, florets free. 



ggj j P' montana Parn. Gr. t. 39. — S. uppermost sheath as short as 



^j[j I ' its leaf, its joints near the base of the culm, ligule prominent 



te, lit *■ ^"^^ ^ — '• uppermost' slieath as short as its leaf, liVule pro- 



minent obtuse, florets webbed. P. Balfourii Parn. Gr. t. %Q. : 

 E. B. S. t. 2918. 



L 



Common in woods and thickets. — jS. Snowdon, Cwm Idwell, and 



other Welsh mountains. Upper Teesdale. — 7. Ben Lawers 



5' and 6. Scotch mountains. 1\.. 6, 7. — A very variable species, 

 and to which we have no hesitation in referring all the above as varie- 

 ties : and, indeed, although we have arranged them as varieties in 

 order that our readers may see the characters on which they depend 

 we remain of the opinion stated in former editions, that all the niOun- 



B B 



obtuse, spikelets purplish, florets free, P. glauca Sm, in E. 



