122 OCTAND. TETRAGYN. 



tiolatc, spikes slender erect, stem rooting at the base. E. B. 



t. 1043. 



HAB. Moist fields near Forfar, G. Don. 

 Very near P.Hydropiper, but much smaller, procumbent below 5 spikes 



upright, narrower leaves., and undivided stigma. 



fft Flowers axillary. (Polygonum.) 



8. P. aviculare (Knot-grass), flowers axillary, leaves elliptico- 

 lanceolate rough at the margin, nerves of the stipules distant, 

 stem procumbent herbaceous. Lightf. p. 208. E. B. t. 1252. 



HAB. Way-sides,, common. Fl. May Sept. ) 



Varying much in size ; and by the sea-side, as Lightfoot observes,, is a 

 large var. with fleshy leaves that comes near the P. maritimum, but 

 is not perennial. The flowers are few, 2 4 or 5 from each axil on 

 a short raceme,, green with a reddish tinge. Stam. 8. Stigmas 3. 



** Leaves cordate. (Fagopyrum.) 



9. P. Fagopyrum (Buck-wheat), leaves cordato-sagittate, stem 

 nearly upright without prickles, angles of the seeds even. 

 E. B. t. 1044. 



HAB. Dunghills and about cultivated land ; but introduced by culti- 

 vation, as in England, it being excellent food for poultry. FL July, 

 Aug. 0. 



Stem nearly erect, waved, 1 foot high, branched. Flowers in spreading 

 panicles terminal and lateral, pale reddish.. 



10. P. Convolvulus (climbing Buck-wheat), leaves cordato-sa- 

 gittate, stem twining angular, segments of the perianth bluntly 

 keeled. Lightf. p. 208. ..*. 941. 



HAB. Corn-fields, frequent. Fl. July, Aug. . 

 Very long, climbing. Spikes of few whorled greenish flowers, lateral 

 and leafy. 



3. TETRAGYNIA. 



8. PARIS. 



i. P. quadrifolia (Herl Paris). Lightf. p. 209. E. B. t. 7. 



HAB. Wet woods. Wood about a mile S. of Newbattle, near Dal- 

 keith, Dr. Parsons. Den of Bethaick, 4 miles from Perth, Lightf. 

 Banks a little above Calderwood, Ure. Banks of the Cart opposite 

 the mill, Dr. Brown: and banks of the Kelvin opposite the second 

 mill, Glasg., Hopk. Woods, Aberdeen, Mr. Craigie. Glen of 

 Lenny N. of Loch Menteith, Rev. Dr. Grahame. Fifeshire, Sibbald. 

 Banks of the Isla, near Airly Castle, D. Don. Woods of Lyndoch -, 

 banks of the Dee , sides of Loch Ness, and woods of Dumblane, 

 Mr. Murray. Fl. May, June. 2/ . 



Root creeping. Stem 1 foot high, with 4 (rarely 5) whorled, large, 

 ovate, acute leaves at the summit, the rest naked. Flower single, 

 .terminal, on a footstalk about 2 inches long. Cal. of 4 linear-lan- 

 ceolate, green leaflets. Petals the same, but narrower and more 



