6 1. RANUNCULACE.E. 



2. R. Drouetii (F. Schultz ?) ; submersed L rather closely tri- 

 fureate, segments rather rigid but collapsing, floating 1. (rare) 

 tripartite with subsessile or stalked wedgeshaped bifid Its., ped. 

 not narrowing about equalling the 1., fl. small, pet. obovate 5 7- 

 veined not contiguous evanescent, stig. oblong, receptacle oblong, 

 carp, i-obovate sublaterally apiculate inflated at the end, St. 

 not rising out of the water. Upper 1. nearly or quite sessile. 

 Floating 1. usually : lateral Its. stalked and in a different plane 

 from the usually sessile middle leaflet. Stip. i f-adnate, large, 

 auricled. Buds oblong. Fl. starlike. Stam. exceeding the 

 pistils, fewer than 10. Fr.-receptacle as thick as peduncle. 

 Carp, with the edge flattish at the end, base of style small often 

 subcentral. Ponds and ditches. P. V. VI. E. 



3. R. heterophyllus (Fr.) ; submersed L loosely trifurcate, seg- 

 ments long collapsing, floating 1. subpeltate tripartite with sessile 

 or stalked wedgeshaped 3 5-lobed Its., ped. not narrowing 

 scarcely exceeding the 1., fl. large, pet. broadly obovate-cuneate 

 7 9-veined not contiguous persistent, stig. oblong, receptacle 

 conical, carp, i-obovate laterally pointed. R. aquatilis E. B. 

 101. St. not rising out of the water. Floating 1. nearly circular, 

 sometimes 0. Stip. much adnate. Buds slightly depressed and 

 rather 5-agonal. Fl. becoming starlike. Stam. many, exceeding 

 pistils. Style hooked. Carp, blunt, inner edge straight. Ponds 

 and streams. P. V. VI. E. 



4. R. confusus (Godr.); submersed I. loosely trifurcate, seg- 

 ments long rather rigid not collapsing, floating I. long-stalked 

 subpeltate subtripartite with sessile obovate 3 5-lobed segments, 

 ped. slender narrowing gradually exceeding the L, fl. large, pet. 

 obovate-cuneate 7 9-veined not contiguous persistent, stig. 

 tongue-shaped, receptacle ovate-conical, carp, ^-ovate compressed 

 and narrowed upwards. St f 82. 2. St. rising out of the water. 

 Floating 1. semicircular, flat, nearly tripartite, outer base of lateral 

 segments rounded. Stip. oblong, much adnate. Buds globular. 

 Fl. starlike. Stam. many, exceeding pistils. Style recurved. 

 Ponds and ditches, especially near the sea, often in brackish 

 water. P. VI. IX. E. 



5. R. Baudotii (Godr.) ; submersed 1. closely trifurcate, seg- 

 ments rather rigid not collapsing, floating 1. long-stalked tripar- 

 tite with sessile or stalked wedgeshaped 3 4-lobed segments, 

 ped. thick narrowed at the top exceeding 1., fl. moderate, pet. 

 7-veined not contiguous persistent, stam. not exceeding pistils, 

 stigma tongue-shaped, receptacle long-conical, carp, i-obovate 

 inflated at the end. St. rising out of the water (?). Floating 1. 

 nearly or quite tripartite, the base of all the segments wedge- 

 shaped ; or often of many linear blunt segments. Stip. much 

 adnate. Buds globular but depressed (?). Fl. starlike. Stam. 



