LXXn. POLYGONACEiE 



365 



pol^gonum.l 



tate stem nearly upriglit without prickles, angles of the fruit 

 even. ^. 5. t. 1044. 



^ — Stem nearly 



eveTt"?exuose, 1 foot high, branched. Flowers in spreading panicles, 

 t rminal and lateral, ptle-reddlsh. Stamens 8. Cotyledons large, 

 Seous, contorted and plaited. An excellent food for poultry. 



Dunehills and about cultivated land. 0. _ 7, 8. 



tt 



Flowers racemose^ 



) 



stem twining angular, segments of the perianth bluntly keeled 

 Sly winied): fruit opaque striate with mmute points. 



Corn-fields, frequent. 0. 7 — 9.— Very Ic 

 lateral and leafy, of 4 whorled greenish flowers. 



Very long, climbing. Spikes 



lateral and leaiy, oi -t wi.uneu j;.cc.wo.,^...^w„. _ The ^Pf""."?"? ^" ^ 

 a winged perianth are of rare occurrence, and chiefly met with in the 



Isle of Wight. 



8 P. dumetorum L. (Cop-^e 5.) ; leaves cordate-sagittate, 

 stem twining striate, segments of the perianth with a mem- 

 branous wing, fruit quite smooth and shining on the surface. 



South of England, but seldom found above a year or two in the 

 same place. Wood at W imbledon, also at Reigate, andin hedges 

 between Woking Common station and Guildford Surrey ; Torvick, 

 Trotton, and hedge by W^ood's Nursery near Maresfield, Sj>ssex ; 

 retersfield, Hants ; Framfield, Dorsetsh. ; near Keynsham Somer- 

 , . ^ Q Q T- i„o^i,r oii^orl +r» fhp win.o-ed variety oi the 



last species. 



**** Styles mostly 2. Achene compressed or triquetrous. Stem usually 



branched. Stipules truncate. Persicaria, 



amheld, Dorsetsh.; near jveyiibuaui, oumc.- 

 Too closely allied to the winged variety of the 



t 



9. P. 



creeping, 



o*. stamens 



^. .. ampMbium L. (amphibious P.)? . ^. ,. . 



6, styles 2, spike dense oblong-ovate, achene sniooth shining, 

 leaves petiolate, stipules membranous narrow, E. B. t. 4^b. 

 — a. aquaticum; leaves floating broadly lanceolate glabrous, 

 spikes ohlong. — (5. terrestre; nearly erect, leaves narrow -lan- 

 ceolate rough with short rigid appressed hairs on both sides, 

 spikes ovate. 



Margins of ponds, lakes, and ditches, and damp ground, frequent. 

 1^, 7, 8. — Stem 2 — 3 feet long, and scarcely branched when grow- 

 ing in the water. Leaves arising from long tubular sheaths or stipules, 

 glabrous in a. but hispid in /3. Spikes mostly solitary, terminal, of 

 a bright rose-colour. The only perennial species of the Persicana 

 group. 



I 



R 3 



