POIYGONUJI. FAOOPTEtlM. 303 



nut striate with raised points opaque about equalling the penanth, 

 —E. B. 1252. ay. E. B. 1229— 1231.— L. usually Hunt, aome- 

 timea acute, broad or narrow. Fl. either very distant and acat- 

 tered, or so much collected as almost to form a leafy spike. St. 

 erect or procumbent. Ocrese sometimes long and much torn. 

 Nut usuaUy falling short of the perianth, but sometimes slightly 

 exceeding it. Very -variable. Some botanists think that it 

 includes several species ; but I am quite unable to divide my 

 specimens similarly. — ^. P. Uttorale (Link) ; st. long, difiiise, 

 prostrate, 1. thick broad, nut minutely punctured finely striate. 

 — Waste places. Sands by the sea. A. V. — ES. Knot-grass. 



E. S. I. 



11. P. JRdii (Bab.) ; I. elliptic-lanceolate^i, ooreee lanceolate 

 acute with few distant simple veins at length torn, nid smooth 

 shining exceeding the perianth. — E. B. S. 2805. — St. long, strag- 

 gling, prostrate. L. bending towards the stem. Filaments 

 broader at the base. Resenibling P. avicttlare in habit, but P. 

 maritimum in fruit. It varies with smaller 1. and ±1. — Sandy 

 sea-shores. A. or P. VIH. IX. E. S. I. 



12. P. marit'imum (L.) ; I. elliptic-lanceolate coriaceous with 

 revolute edges, ocrece lanceolate with many branched veins at 

 length torn, nut smooth shining exceeding the perianth. — 

 E. B. S. 2804. — St. procumbent, quite woody below, often much 

 buried. L. convex above, diverging from the stem. Filaments 

 broader at the base. — Sands of the sea-shore. Ohristchurch 

 Head, Hants. Channel Islands. P. VIH. IX. E. 



**** Ocrece semicylindrical. Boot fibrous. Nut triquetrous. 

 Stam. 8. Stoles 3. Fl. racemose. 



13. P. Convol'vuhis (L.) ; st. twining angular, 1. cordate-sagit- 

 tate, segments of perianth bluntly keeled, nut opaque striate with 

 minute points. — E. B. 941. — St. climbing or prostrate, much 

 shorter than in the next species. — p. pseudo-dumetorum(Wa,ta.) ; 

 perianth-segm. winged ; often taken for Sp. 14. — Cultivated 

 and waste land. A. VH. — IX. Black Bindweed. E. S. I. 



14. P. dumetdrum (L.) ; at. twining striate, 1. cordate sagit- 

 tate, segments of perianth winged, nut very smooth and shining. 

 —E. B. S. 2811.— St. wiry, climbing to the height of 4 or 5 

 feet.— Thickets in the South, rare. A. VH.— IX. E. 



4. FAaoPT'RiTM Oaert. Buck-wheat. 



[F. esctden'tum (Moench) ; st. erect without prickles, fl. in 

 cymose panicles, stam. 8, 1. cordate-sagittate acute, nut trique- 

 trous acute with entire angles. — Polygonum Fagopyrum L. 

 E. B. 1044. — An escape. Sown as food for game. A. VH. 



vni.] 



