1^8 



ADDITIONS TO THE FLORA OF BERWICKSHIRE. 



tuberculated. The present species differs remarkably from both A. 

 paticla and angustifolia^ by its densely flowered comj)ound spikes ; those 

 plants having long simple interrupted spikes. It is also distinguished 

 from the former, by its smooth, shining, and much smaller seeds, and 

 the shape of its leaves ; from the latter, by its denticulated calyx and 

 great difference of habit. 



This plant is not uncommon throughout England and the south of 

 Scotland. I noticed it in Holy Island, and also near the Town of 

 Berwick, in great plenty. 



3. Chenopodium botryoides. Sm. Eng. Bot. t. 2247. 



I gathered this plant in Holy Island, in company with Dr Johnston, 

 in September last, and have compared the specimens with others from 

 Lee Pool, Cornwall, with which they exactly agree. 



4. SiLENE NOCTiFLORA. Limi. — Eng. Bot. t. 291. 



We also found a few specimens of this plant during the same visit 

 to Holy Island. 



5. PoTAMOGETON PLANTAGiNEUs. Bu Croz {in Gaud. Fl. Held. i. 471, 

 tab. 3.) Leaves all membranous, stalked, rather opaque, blunt, 

 entire, lower ones oblong, upper elliptical ; nuts minute, obliquely 

 ovate, rounded on the back (when fresh) ; spike slender, cylindri- 

 cal, densely flowered, on a long terete peduncle. Roem. and Sch. 

 iii. 504. Reieh. 24. Bert. Fl. ltd. ii. 232. P. coloratus, Sorn. 

 in Fl. Ban. 1449, Cham, in Linncea, ii, 194, t. 5, f. 15 ; P. Horne- 

 manni ^^ Meyer Flor. Hmiov. 521 ;" Koch Syn. 674. 



Differs from P. natans by its beautifully diaphanous reticulated 

 leaves, none of which are coriaceous, and its much smaller fruit ; from 

 P. ohlongus by its leaves, and the acutely heeled back of its dry fruit ; 

 in that plant it is always obtuse. 



A specimen of this species exists in Dr Johnston's Herbarium, 

 gathered by Dr E. D. Thompson, at Ferney Eig marsh, Berwickshire. 

 It has been found in several parts of England. 



Hoping that these few notes may be acceptable to your Club, believe 

 me, &c. 



Charles 0. Babington. 



