GLYCERIA. POA. 215 



132. G. PLICATA. Bab. Man. 392. See also Townsead in Ann. 

 and Mag. Nat. Hist. Ser. 2. v. 104, &c.— Gathered by Mr. Babing- 

 ton in the watery ground at the trough below Letham-Shank in 

 August 1845. I have also found it in the Tweed, at the isle above 

 Norham, vnth its presumed variety pedicellata. Indeed I cannot say 

 whether G. fluitans or plicata is our most common species. Pro- 

 fessor Arnott, as I think rightly, does not distinguish them specifically. 



133. G. MARiTiMA = Poa maritima = Sclerochloa maritima. — 

 D. Shores of Holy Island, and on the Fame islands. — B. Sides of 

 the Tweed above the Bridge, forming the herbage principally of those 

 green spots that are frequently covered by the tide. St. Abb's-Head, 

 and on the shore from that to Redheugh, and thence to Dunglass. 



134. G. RiGiDA = Poa rigida = Sclerochloa rigida. — D. Plentiful 

 on the Heugh in Holy Island. June. 



135. PoA COMPRESSA. R. On Melrose Abbey, as mentioned by 

 Lightfoot. Fl. Scot. p. 98. 



136. P. PRATENSis. Meadows. — The P. subcserulea of Eng. 

 Botany, a variety remarkable for the glaucous hue of its herbage, 

 grows abundantly on Yarrow-haugh, and on the Fame islands ; and 

 the variety named arenaria by Dr. Pamell on the links of our sea- 

 coast. His figure is a very characteristic one. , 



137- P. TRiviAns. Curtis, Brit. Grass. 10. pi. 4 : Farquharson 

 in Murray's North. Fl. App. p. vii. — Meadows. — From the large 

 share which this grass and the preceding contribute to our meadow- 

 pastures, they are called J9aturaIsgra;SiS. 



138. P. Balfouri. Parn. Scot. Grass. 145. pi. 66. Trans. 

 Berw. N. Club, ii. 166. Backhouse in Ann. and Mag. N. Hist. Ser. 2. 

 vii. 154. — N. On rocks by the CoUedge burn in the Brizzle, at a 

 height of upwards of 2000 feet. — " I have no doubt of the Cheviot 

 grass being Poa Balfouri, as it agrees with Scottish specimens of that 

 plant in most respects. It differs from most of the Scottish specimens 

 which I have seen, and also from Pamell' s figure, ia having the upper 

 joint of the stem placed rather higher so as to appear above the 

 second sheath. In this respect, however, one of the specimens from 

 Ben Lawers, given to me by Dr. Pamell, corresponds with it." 

 C. C. Babington. 



139. P. annua. StilHngfleet's Works, ii. 280 & 326. pi. 8.— 

 Very common, flowering throughout the summer. About Dunse it 

 is called Cau^stoagsgvaiSsi for a very obvious reason, — its frequency 

 in unfrequented streets. The Ravensdowne of Berwick bears a good 

 crop of it in the latter end of summer. I have been startled at 

 finding it near the summit of Hedgehope and of Cheviot, — no doubt 

 carried to this unusual height by the sheep, and vegetating where 

 their dung had prepared a suitable locality for the seed. 



7. Poa glauca. Turn, and Dillw. Guide, i. 242. — Holy Island, Winch. — 

 This cannot be the P. glauca of Smith, which is an alpine species. Mr. 

 Winch probably intended P. subcserulea. 



