186 TRIANDRIA— DIGYNIA. Poa. 



ceolate, five-ribbed, connected by a web. Stipula short 

 and obtuse. Stem and leaves smooth. Root creeping. 



P.pratensis. Linn. Sp. PL 99. mild. v. 1.388. FL Br. 104. Engl. 



Bot. v. 1 5. 1. 1 073. Curt. Land. fuse. 2. t. 5. Knapp t. 55. Dicks. 



H. Sicc.fasc. 1 4. 3. Sincl. 17. Hook . Scot. 35. Schrad. Germ. 



v. 1. 298. Host Gram. v. 2. 44. t. CI. 

 P. glabra. Ehrh. Calam. 6*2. 

 Gramen pratense paniculatum medium. Bauh. Theatr. 30. /. 



Scheuchz. Agr. 180. Rail Syn. 409. 

 G. pratense minus. Ger. Em. 2.f. 



(3. Poa angustifolia. Linn. Sp. PL 99. Willd.v. 1.387. Leers 27 . 



t. 6.f 3. Dicks. H. Sicc.fasc. 14.4. 

 G. pratense paniculatum majus, angustiore folio. Raii Syn. 409. 



Moris, v. 3. 201. sect. 8. *. 5. /. 19. Scheuchz. Agr. 178. t. 3. 

 / 17, B. 

 7. Poa subceerulea. Engl. Bot. v. 14. L 1004, exc^. Me reference to 



Withering. 

 P. humilis. Ehrh. Calam. 1 15. Comp. 1 6. H. £r. 1387, excluding 



the references to Willdenow, Haller and Schenclizer. 

 P. cserulea. Knapp t. 1 18. Sincl. 19. 

 P. pratensis /3, alpina. i/wtZs. 39. 

 P. pratensis /3, minor. Hook. Scot. 35. 



In meadows and pastures, whether moist or dry, common. 



/3. In vvoods. 7. In mountainous situations, in Wales, Anglesea, 

 Westmoreland, Cumberland and Scotland. 



Perennial. May, June. 



Root creeping, with horizontal runners. General aspect of the 

 plant very like the last, with which it has been usually con- 

 founded, but the stem and leaves betray no roughness when 

 drawn through the hand. The florets are mostly 4, sometimes 5, 

 very rarely but 2, their connecting web very copious, as well as 

 long and complicated, their keel often silky. The outer valve 

 of the calyx has very prominent lateral ribs. But the clear and 

 essential mark of this species, compared with the last, consists 

 in its very short, abrupt, pointless stipula, which in every leaf, 

 of every variety, proves constant and invariable. Scheuchzer, 

 Hudson and Curtis have all observed this, we believe indepen- 

 dently of each other, and following botanists have confirmed the 

 truth of their remarks. The stigmas of P. pratensis are as much 

 branched as those of P. trivialis. P. pratensis of Leers, 28. t. 6. 

 /. 4, cited with doubt in Fl. Br., is referred by Schrader to his 

 serotina, v. 1. 299. 



/3 differs chiefly in the narrowness of its leaves, which are involute, 

 and somewhat rigid, with roughish sheaths, especially the lower 

 ones. All authors, since the publication of FL Br., have con- 

 curred with me in making it a variety only. 



