122 OCT AND. — TETRAGYN. 



tlolatc, .sj)ikcs slender erect, stem rooting at the base. E. B. 

 t. l()i:j. 



Har. Moist fields near Forfar, G. /)o». 



Very near P.Hijdropiper, bat much smaller, {)rocumbcnt below j spikes 

 upright^ narrower leaves, and undivided stigma. 



ttt Flaiccrs axiUdrij. (Polygonum.) 



8. P. avlculare {Knot-grass), flowers axillary, leaves elliptieo- 

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

 stem procumbent herbaceous. Li g h tj. p. 2{)S. K.B.t. 1252. 



Haij. Way-sides, common. H.May — Sept. ©. 



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

 large var. with fleshy leaves that comes near the P. marithiuim, hut 

 is not perennial, '['hejluwcrs are few, 2 — 4 or 5 from each axil on 

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



** Leaves corddfe. (Fagopyrum.) 



9. P. Fagnpyrum (Buck-ivheat), leaves eordato-sagittatc, stem 

 nearly upright without prickles, angles of the seeds even. 



E.B.t.uyu. 



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

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

 Aug. O. 



ISlem nearly erect, waved, 1 foot high, branched. Floicers in spreading 

 panicles terminal and lateral, pale reddisli. 



10. P. Convnlvulus {clhnbhig Biick-ivliecit), leaves cordate-sa- 

 gittate, stem twilling angular, segments of the jjerianth bluntly 

 keeled. Lighff. p. 20S. E.B.t.94\. 



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

 Very long, climbing. Spikes of few ndiorled greenish fliowers, lateral 

 and leafy. 



3. TETRAGYNIA. 



8. PARIS. 



'i. P. quadrifoUaiHerh Paris). Lighlf. p. 209. E.B.t.7. 



iIab. Wet woods. Wood about a mile S. of Newbatlle, near Dal- 

 keith, ])r. Farsons. Den of Betliaick, 4 miles from Perth, Lighlf. 

 ]Jaid<s a little above Calderwood, Urc. Banks of the Cart opposite 

 the mill. Dr. Bixm-n : and banks of the Kelvin opposite the second 

 mill, (ila.sg., Hopic. Woods, Aberdeen, Mr. Craigic. Glen of 

 liCnny N. of Loch Menteith, Rev. Dr. Graliume. Fifeshire, Sibbald. 

 Banks of tlie Isla, near Airly Ca.Htle, D. Don. Woods of Lyndoch ; 

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

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



iJooi creeping. Stem 1 foot high, with 4 (rarely .'^i) whorled, large, 



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



terminal, on a footstalk about 2 inches long. Cat. of 4 linear-];m- 



. ceolate, green leaflets. Petals the same^ but narrower and moie 



