ADDITIONS TO TnB FLORA OF BERWICKSHIRE. 177 



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

 September last. The 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 woidd be found within it, 

 except such as are included 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 sufficient minuteness until very recently. 



1. Atriplex rosea, Linn. (Sp. pi. 1493). Stem herbaceous spread- 

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

 atodentate ; 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 ; Host. Fl. Aust., i. 320 ; 

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

 alba Reich. Fl. Excurs., n. 3735. A. patula /3. Sm. Fl. Brit., iii. 

 1092. 



This plant is most nearly allied to A. laciniata, from ?7hich it is 

 distinguished 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. patiila. This latter state is frequent above the bridge 

 at Berwick. I have noticed the present plant in Guernsey, at Shore- 

 ham, near Liverpool, and near Newhaven, Edinburgh. It has also 

 been foxind on other parts of the coast. 



2. A. ereota, Euds. FL Any. ed. i. 376, Eng. Bot. 2223, Eng. Fl. 

 iv. 294. EooTc. 379. 



^. STRiOTA, Bah. Mas. 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. 



The A. erecta of Hudson is known only by a single very imperfect 

 specimen in the Smithian Herbarium, and which differs from our 

 plant by having smaller fruit, and the enlarged calyces strongly 



