356 66. POLYGONACE.E. 



6. A. Babingtonii (Woods) ; st. spreading procumbent or as- 

 cending with spreading branches, I. mealy ovate-triangular some- 

 what 3-lobed unequally sinuate-dentate, upper 1. lanceolate den- 

 tate and often 3-lobed at the base, fr -perianth rliomboidal acute 

 toothed tubercled on the back, clusters axillary and terminal few- 

 flowered, seeds minutely tubercular. A. rosea Bab., E. B. S. 

 2880, not L. A very variable plant. Sometimes bright red, at 

 others [var. virescens (Lange)] quite green and much more fleshy. 

 Fr.-perianth large, typically forming a diagonal square a little 

 rounded at the lateral angles. Sea-shore, common. A. VII. 

 IX. E. S. I. 



** Stem buft-coloured, nearly without stripes. Perianth of fr. 

 hard and thick. 



7. A. lacinidta (L.) ; st. spreading procumbent with spread- 

 ing branches, /. triangular-rhomboidal sinuate mealy beneath, 

 spike of male fl. dense naked, fertile fl. axillary, fr. -perianths 

 rliomboidal 3-lobed with the lateral lobes truncate the back 3- 

 ribbed the two lateral ribs often terminating in tubercles, seeds 

 rough opaque. A. arenaria Woods (not Nutt.). A. farinosa 

 (Bum.) ed. viii. E. B. 165. Plant hoary throughout. Fr.- 

 perianths large, very broad. Sandy shores. A. VII. IX. 



E. S. I. 



7. OBI'ONE Gaert. Sea-Purslane. 



1. O. pedunculdta (Moq.) ; st. herbaceous wavy branched, 1. 

 obovate entire attenuate below, upper 1. narrower, fr.-perianth 

 long-stalked wedgeshaped 2-lobed with a small intermediate 

 tooth. E. B. 232. Atriplex Sm. Muddy salt marshes near 

 the East and South coasts ; very rare. A. VIII. IX. E. 



2. O. portulaco'ides (Moq.) ; st. woody, 1. obovate-lanceolate 

 entire attenuate below, fr.-perianth inversely triangular rounded 

 below subsessile with 3 equal lobes above and rnuricate on the 

 back. E. B. 261. Atriplex Sm. Common on the sea-shore. 

 P. VIII. X. E. S. I. 



Order LXVI. POLYGON ACEJE. 



Perianth 3 6-parted, imbricate. Stam. definite, from the 

 base of the perianth. Ovary 1, free, with 1 erect ovule. Styles 

 and stigmas several. Fr. not bursting, a nut, naked or covered 

 by the enlarged perianth. Embryo inverted, usually on one 

 side of farinaceous albumen ; radicle remote from the hile. 

 Stipules usually cohering in the shape of ocrese. 



