PLex.mon. 17. POLYGONEiE. 34. Persicaria. 269 



Persicaria vulgaris acris, seu hydropiper. Rati Syn. 144, 1. 

 Persicaria vulgaris acris, seu minor, Park. 856. 

 Polygonum Hydropiper, Lin. S. P. 517, 

 Persicaria acris, Lamarck Fl. Fr. 234. 

 Polygonum gracile, Salisb. Prod, 259. 

 jlrsesmart. JVater-pepper. 



Watery places ; annual ; September. 



Stem 2 feet high, much branched; upper part of the joints 

 swelled; leaves pale green ;Jloivers reddish, glandular on 

 the outer side. 



3. Persicaria pusilla. Dwarf peachwort. 

 Stem rooting at bottom ; leaves linear, lanceolate, flat, 



spotless; stipules fringed; spikes slender, threadshape, rather 

 upright ; style very slightly 2-cut. 



Persicaria pusilla repens. Rail Syn. 143,2; Ocr. em. 446,3; Park. 857. 



Polygonum Persicaria /3, Lin. S. P. 518. 



Polygonum minus, Huds. Fl. Angl. ed. 1, 148. 



Polygonum Hydropiper ,6, Huds. Fl. Angl. ed. 2, 170. 



Persicaria pusilla, Lamarck Fl. Fr. 235. 



Polygonum strictum, Allioni Ped. 2051. 



Polygonum intermedium, Ehrh. 



Polygonum mite, Schrank Bavar. 1, 668. 



Polygonum angnstifolium, Roth Germ. 2, 453. 



Small creeping arsesmart. 



Damp sandy places ; annual ; September. 

 Stems many, above erect, 9 in. high, slightly branched; 

 spikes reddish; flowers not glandular on the outer side. 



4. Persicaria maculosa. Spotted peachwort. 

 Stem erect ; leaves ovate, lanceolate, often spotted, bald ; 



stipules fringed ; spikes ovate, oblong ; peduncles smooth ; 

 style nearly 2-cut. 



Persicaria maculosa, Raii Syn. 145 ; Ger. em. 445, 2. 

 Persicaria vulgaris mitis seu maculosa, Park, S56. 

 Polygonum Persicaria, Lin. S. P. 518. 

 Polygonum nudicaule, Salisb. Prod. 259. 

 Dead arsesmart. 



Damp places; annual ; July and August. 

 Stem 3 feet high, alternately branched ; leaves spreading, 

 deflexed ; spike upright, rose-red. 



B. argentea. Leaves not spotted, silver coloured. 



Polygonum folio salicis alba vulgaris, Raii Syn. 145,7. 

 Silver arsesmart, Peiiver Herb. Brit. 3, 9, 



5. Persicaria incana. Grey peachwort* 

 Stem ascending; leaves oblong, lanceolate, spotted, be- 

 neath pubescent; stipules fringed; peduncles smooth; spikes 

 oblong, erect. 



