ADDITIONS TO THE FLORA OP BERWICKSHIRE. 177 



I gathered during my visit to you at Berwick-upon-Tweed in September 

 last. Tin- district included in your Flora has been so carefully examined, 

 by yourself and other excellent botanists, that it was not to be expected 

 that any new plants would be found within it, except such as are in- 

 cluded in genera which have been almost totally neglected in Britain. 

 I refer to Atriplex, Chenopodium, and, perhaps, I may be allowed to add, 

 Potamogeton ; for, although more attention has been paid to this latter 

 genus than to the two others, yet it has never been studied with suffi- 

 cient minuteness until very recently. 



1. ATRIPLEX ROSE A, Linn. (Sp. pi. 1493). Stem herbaceous spread- 

 ing, the branches patent, leaves ovato-triangular, unequally sinuato- 

 dentate ; calyx of the fruit rhomboid, acute, dentated, the back 

 with a double series of tubercles ; clusters of flowers axillary and 

 terminal. Mert. and Koch., ii. 307 ; Hort. Fl. Aust. t i. 320 ; 

 Fries Nov., 286 ; Ledebour Fl. Alt^ iv. 314 ; Koch. Syn., 611. A. 

 alba Reich. Fl. excurs, n. 3735. A. palula 3. Sm. Fl. Brit., iii. 



. 1092. 



This plant is most nearly allied to A. laciniata, from which it is dis- 

 tinguished by the shape of its enlarged fruit-bearing calyx, which in that 

 plant is irregularly rhomboid, or rather three-lobed, the two lateral lobes 

 being truncate, the intermediate acute. 



This plant is in profusion on the SW. side of Holy Island, a little 

 above high water-mark, and it also occurs in several spots on the coast 

 and river banks near Berwick. When it grows within reach of the 

 water, and in muddy ground, it becomes much larger and more fleshy, 

 having totally lost the elegance for which it is remarkable in its more 

 typical state when growing on gravelly and sandy places, and would 

 hardly be known as the same plant, but probably be taken for a state of 

 A. patula. This latter state is frequent above the bridge at Berwick. 

 I have noticed the present plant in Guernsey, at Shoreham, near Liver- 

 pool, and near Newhaven, Edinburgh. It has also been found on other 

 parts of the coast. 



2. A. ERECT A, Huds.fi. ang. ed. i. 376. Eng. Bot. 2223. Eng. Fl. 



iv. 294. Hook. 379. 



j8. STRICTA, Bab. Mss. Stem herbaceous, erect, the branches 

 ascending ; lower leaves ovate-oblong, cuneate at the base, irregu- 

 larly sinuato-dentate, upper ones lanceolate entire ; fruit-bearing 

 calyx rhomboid, acute, denticulated, submuricated on the back, 

 scarcely larger than the fruit ; spikes compound, many-flowered ; 

 seeds smooth and shining. 

 B. N. c. NO. vi. N 



