54 POLYANDRIA— POLYGYNIA. Ranunculus. 



segments. Fl. opposite to the leaves, solitary, stalked, small, 

 yellow, with narrow obovate petals, one or more of which are 

 often wanting, or imperfect. -Seeds lenticular, with a broad, 

 compressed, curved point ; their sides densely covered with 

 small, hooked, prominent prickles. 



14. R. hederaceus. Ivy Crowfoot. 



Seeds wrinkled. Leaves roundish-kidney-shaped, with 



three or five lobes, entire, smooth. Stem creephig. 

 R. hederaceus. Linn. Sp. PI. 78 1 . Willd. r. 2. 133 1 . Fl. Br. 595. 



Engl. Bot. V. 28. t. 2003. Curt.Lond.fasc. 4. t. 39. Hook. Scot. 



] 73. DeCand. Sijst. v. 1 . 233. Fl. Dan. t.32l. Dalech. Hist. 



1031./. Bauh.Hist.v.3.774.f. 

 R. aquatilis hederaceus albus. Ruii Syn. 249. 

 Ivy Crowfoot. Pet. H. Brit. t. 38./. 12. 



In shallow rivulets, ditches, and pools. 



Perennial. May — August. 



A little, smooth, branching, creeping or floating herb, sending down 

 radicles from each joint of its hollow leafy stem, ieaues stalked, 

 opposite or alternate, with 3 or 5 shallow lobes j their colour 

 dark green, often with a black spot on the disk. Fl. small, with 

 narro\y white petals, and from 5 to 10 or 12 stamens. Seeds 

 tumid, with minute transverse wrinkles. 



15. R. aquatilis. White Floating Crowfoot, 



Seeds w^rinkled. Leaves in capillary segments under water ; 

 above somewhat peltate, lobed, bluntly notched. 



R. aquatilis. Linn. Sp. PL 781 . Willd. v. 2. 1332. Fl. Br. 596. 

 Engl. Bot. v.2.t.}0l. Hook. Scot. 173. Ger. Em. 829./. Rail 

 Syn. 249. DeCand. Sijst.v. I. 234. Dad. Pempt. 587./. 



R. n.ll63. Hail. Hist. V. 2. 69. 



R. aquatilis albus. Bauh. Hist. v. 3. 773. f. 



R. aquatilis albus, lato et foeniculi folio. Barrel. Ic. t.b65. 



R. aquaticus, hepaticse facie. Lob. Ic. v. 2. 35. f. 



R. heterophyllus. Wiggers Holsat. 42. Sibth. 175. Mbot \23. 

 Purt. V. 1 . 263. 



Water Crowfoot with various leaves. Pet. H. Brit. t. 39. f. 1. 



/3, Ranunculus aquatilis omninb _tenuifolius. Raii Syn.249. 

 Bauh. Hist. V. 3.773. f. 



R. aquatilis. Wigg. Holsat. 42. Sibth.\75. 



R. trichophyllon aquaticus medio luteus. Column. Ecphr. 315. 

 ^.316. 



R. aquaticus albus foeniculi folio. Barrel. Ic. t. 566. 



R. n. 1162. Hall. Hist. V. 2. 69. 



R. pantothrix. Brot. Lusit. v. 2. 375. DeCand. Syst. v. \. 235, a. 



Millefolium, sive Maratriphyllon, flore et semine Ranunculi aqua- 

 tic), hepaticse facie, Ger. Em. 827./. 



