302 66. PoirsoNACEJ!. 



with glands, nut compressed its faces roundisli acuminate cori'' 

 cave shining covered by the strongly veined perianth, styles 

 connected below at length divergent and reiiexed.— P. laxum 

 E. B. S. 2822. P. nodosum K. I. 496 (not Pers. ?). Perswaria 

 maculata Gray (1821). J. ofB. ix. 34. — Smaller than the prece- 

 ding. St. often prostrate; joinings very thick. Racemes slender 

 ani interrupted (the typical form) ; or thicker and continuous 

 (as in E. B. S.), and 1. white and woolly beneath. — ^Darnp gra- 

 veUy places. A. VII.— IX. E S. I. 



6. P. Persicdria (L.) ; raceme compact ovate-ohlong cylindri- 

 cal, 1. lanceolate flat minutely tubercled, oa-ece loose strongly 

 fringed, ped. and perianths smooth, nut compressed and gibbous 

 on one side or trigonous its faces roundish acuminate smooth 

 scarcely covered by the obscurely veined perianth, styles con- 

 nected halfway up at length patent. — Sy. E. B. 1237. — St. 1 — 2 

 feet high. L. more or less hairy on hoth sides ; sometimes 

 wooUy beneath, when it is P. incanum of authors. Ped. some- 

 times slightly hairy. — /3. P. hiforme (Wahl.) ; racemes slender, 

 much resembling P. lapathifolium, E. B. 756. — ^Waste and 

 damp ground. A. VI. — X. E. S. I. 



7. P. mite (Schrank) ; raceme erect JiUform interrupted, 1. lan- 

 ceolate slightly wavy, ocrecB hose funnelshaped pilose, strongly 

 fringed without glands, ^jen'ora^As imthout glands, nut (large) 

 compressed its faces roughish ovate acute rather shining cmivex, 

 stam. 5, styles connected halfway up. — E, B. S. 2867. — St. 1 — 3 

 feet high, often much branched. Ocrese all fringed. Kacemes 

 thickening upwards. — Wet places, A. VI. IX. E. 



8. P. Hydroplper (L.) ; raceme drooping filiform interrupted, 

 1. lanceolate wavy, ocrece ventricose glabrous fringed glandular, 

 perianths glandular, nut (large) compressed its faces ovate acute 

 rugose-punctate opaque convex, styles 2 nearly distinct. — E. B. 

 989. — St. 1 — 3 feet high. Upper ooreae funnelshaped, scarcely 

 fringed. Nut rounder than in P. mite. Racemes sometimes 

 erect. — Wet places. A. VIII. IX. Water-Pepper. E. S. I. 



9. P. minus (Huds.) ; raceme erect filiform slender lax, 1. linear- 

 lanceolate flat, ocrece close pilose all fringed without glands, peri- 

 anths without glands, nut (small) compressed its face ovate acute 

 smooth shining convex, styles connected for at least half their 

 length. — E. B. 1043. — St. usually procumbent, difiuse. Racemes 

 ascending. Much smaller than P. Sydropiper, fl. and fr. only 

 half the size. — Wet gravelly places, rare. A. VIII. IX. E.S.I. 



«** Ocrece 2-lobed. Boot fibrous. Nut triquetrous. Stam. 8. 

 Styles 3. Fl. axillary, 1 — 3 together. Avieularia. 



10. P. aviculdre (L.) ; 1. lanceolate or elliptic stalked, ocrem 

 lanceolate acute with few distant simple veins at length torn, 



