286 67. EL^EAGNACEJS. 



fruit. Filaments broader at the base. It varies with smaller 1. 

 and fl. Gren. says that the P. Roberti (Lois.) has the small fr. 

 and almost the 1. and st. of P. aviculare, with the ochrese and 

 smooth polished fr. of P. maritimum. Sandy sea-shores. A. 

 VIII. IX. 



12. P.maritimum(L.}; I. elliptical-lanceolate coriaceous with 

 revolute edges, ochrete lanceolate with many branched veins 

 at length torn, nut smooth shining exceeding the perianth. 

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

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

 broader at the base. Sands of the sea-shore. Christchurch 

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



**** Qckrece semicylindrical. Root fibrous. Nut triquetrous. 

 Stam. 8. Styles 3. FL racemose. Tinaria. 



13. P. Convolvulus (L.); st. twining angular, 1. cordate-sagit- 

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

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

 shorter than in the next species. The perianth is sometimes 

 winged, when the plant is often taken for P. dumetorum. Cul- 

 tivated and waste land. A. VII. IX. 



14. P. dumetorum (L.) ; st. twining striated, 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. A. VII. IX. E. 



4. FAGOPYRUM Gaert. Buck- wheat. 



*1. F. esculentum (Moench) ; st. erect without prickles, fl. in 

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

 trous acute with entire angles. E. B. 1044. Polygonum Fago- 

 pyrum Sm. Naturalized. Sown as food for game. A. VII. 

 VIII. E. S. 



Order LXVII. EL^EAGNACE^l. 



Mostly dioecious. Perianth tubular ; limb 2 4-toothed, in 

 male fl. 4-parted. Stam. 3 or more, inserted in the throat. 

 Anth. 2-celled, nearly sessile, bursting on the inner side longi- 

 tudinally. Ovary free, 1 -celled, with 1 erect ovule. Fr. crus- 

 taceous, inclosed within the fleshy persistent perigone. Albumen 

 thin and fleshy. Radicle inferior. See G. F. G. Monochl. 44. 



1. HIPPOPHAE. Dioecious. Male fl. in a sort of catkin; 

 scales ovate, 1 -flowered. Perianth of 2 leaves adhering by 

 their points. Stam. 4 with very short filaments. Female 



