362 66. POLYGONACE.E. 



Persicaria maculata Gray (1821). J. of B. ix. 34. Smaller 

 than the preceding 1 . St. often prostrate ; joinings very thick. 

 Racemes slender and interrupted (the typical form) : o/thicker 

 and continuous (as in E. B. S.), and 1. white and woolly beneath. 

 Damp gravelly places. A. VII. IX. E. S. I. 



6. P. Persicaria (L.) ; raceme compact ovate-oblong cylindri- 

 cal, 1. lanceolate flat minutely tubercled, ocrece loose strongly 

 fringed, ped. and perianths smooth, nut compressed and gibbous 



on one side or trigonous its faces roundish acuminate smooth 

 scarcely covered % the obscurely veined perianth, styles con- 

 nected halfway up at length patent. &/. E. B. 1237. St. 12 

 feet high. L. more or less hairy on both sides ; sometimes 

 woolly bneath, when it is P. inranum of authors. Ped. some- 

 times slightly hairy. /3. P. biforme (Wwhl.) (=var. elatum 

 G. & G.) ; racemes slender, much resembling P. maculatum. 

 Waste and damp ground/ A. VI. X. E. S. I. 



7. P. mite (Schrank); raceme erect filiform interrupted, 1. lan- 

 ceolate slightly wavy, ocrece loose funnelshaped pilose, strongly 

 fringed without glands, perianths without glands, nut (large) 

 compressed its faces rovghish ovate acute rather shining convex, 

 stam. 5, styles connected halfway up. JE. B. S. 2867. St. 13 

 feet high, often much branched. Ocrese all fringed. Racemes 

 thickening upwards. Wet places. A. VI. IX. E. I. 



8. P. Ilydropiper (L.) ; raceme drooping filiform interrupted, 

 1. lanceolate wavy, ocrece 'ventricose glabrous fringed glandular, 

 perianths glandular, nut (large) compressed its faces ovate acute 

 rugose-punctate opaque convex, style 2 nearly distinct../?. B. 

 989. St. 1 3 feet high. Upper ocreaa funnelshaped, scarcely 

 fringed. Nut rounder than in P. mite. Racemes sometimes 

 erect. Wet places. A. VIII. IX. Water-Pepper. E. S. I. 



9. P. minus (Huds.) ; raceme erect filiform slender lax,l. linear- 

 lanceolate flat, fcrece close pilose all fringed without gkmds, peri- 

 anths without glands, nut (small) compressed its faces ovate acute 

 smooth shining convex, styles connected for at least half their 

 length. E. B. 1043. St. usually procumbent, diffuse. Racemes 

 ascending. Much smaller than P. Ilydropiper, fl. and fr. only 

 half the size. Wet gravelly places, rare. A. VIII. IX. E. S. I. 



*** Ocrece 2-lobed. Root fibrous. Nut triquetrous. Stam. 8. 

 Styles 3. FL axillary, 1 3 together. Avicularia. 



10. P. aviculdre (L.) ; 1. lanceolate or elliptic stalked, ocrece 

 lanceolate acute with few distant simple veins at length torn, 



