BANTTNCITLlrS. 11 



18. R. Lin'gua (L.) ; I. long-lanceolate acute somewhat ser- 

 rate seHsile amplexicaul, stem erect, ped. not furrowed, carp. 

 margined minutely pitted with a broad swordshaped beak. — 

 B. B. 100. M. iii. 10.— Fl. large. St. 2—3 feet higb. St. and 

 1. glabrous or with adpressed hairs. Early submersed 1. ovate- 

 oblong blunt cordate at base. — Marshes and ditches, rather rare. 

 P. VI. VII. Great Spearwort. E. S. I. 



tt L. undivided, fl. yellow, nectary with a scale. 



19. R. Picdria (L.) ; root with fasciculate knobs, I. cordate 

 stalked angular or crenate, st. with 1 — 3 1., single-flowered, sep. 

 usually 3, carp, smooth blunt. — E. B. 584. R. iii. 1. — Fl. about 

 1 in. across ; pet. usually 8 ; rarely apetalous. St. 3 — 8 in. long, 

 weak, often producing axillary bulbs. — a. divergens ; lobes of 

 lowest 1. separate at base, lowest sheaths narrow. — ;3. incumbens ; 

 lobesof lowest 1. overlapping at the base, lowest sheaths broad 

 clasping. — Damp rather shady places, common. P. IV. V. 

 PUewort. E. S. I. 



ttt !>• divided, fl. yellow. 

 X Nectary without a scale, carp, smooth. 



20. R. auricomus (L.) ; root ^broiis, radical I. reniform 8 — 7- 

 partite with crenate or out lobes stalked, stem-1. sessile digitate, 

 with linear or lanceolate more or less toothed segments, pedun- 

 cles round, calyx pubescent, carp, downy ventricose, beak slender 

 hooked. — H. B. 624. R. iii. 12. — Pet. often wanting. Sep. 

 yellow. Receptacle covered with cylindrical tubercles upon 

 which the carp, are seated. St. about 1 foot high. — ^Woods 

 and thickets, common. P. IV. V. Goldilochs. E. S. I. 



XX Nectary with a scale, carp, smooth. 



21. R. dcris (L.) ; st. not bulblike, root fibrous, radical 1. 

 palmately tripartite, segments trifid and deeply cut, uppermost 

 stem-1. tripartite with linear segments, ped. terete, calyx pubes- 

 cent erect-patent, carp, oval glabrous margined, beak short mar- 

 ginal recurved, receptacle glabrous. — JE. B. 652. R. iii. 17. — 

 Hairy. No stoles. St. 2— 3 feet high. Beak about ^ the leng-th 

 of the carpel — Sometimes dwarf and 1-flowered on mountains. 

 — The variations R. vidgatus (Jord.) and R. tomophyllm (Jord.) 

 have been found. J. of B. viii. 267, x. 238, The former has 

 usually an oblique or horizontal rhizome, the latter a prasmorse 

 rootstock. — ^Meadows and pastures, common ; mountains. P 

 VI. Vri. TJpright Crowfoot. E. S. I^ 



