I. BANUNCULACEAE. 



[Ranunculus 



A. Stem eeect, without cheeping stolons. 

 * Achenes villous or silky. 

 Leaves large, pelbate, entire, orenate. Flowers white 

 Leaves large, peltate, lobed, 2-crenate. Flowers white 

 Leaves rouncled cordate. Flowers yellow . . 

 Leaves broadly oblong. Aohenes with few hairs 

 Leaves deeply 3-5-lobed or dissected. Flowers white 

 Leaves rounded reniform, deeply crenate . . 



** Achenes glabrous, tumid or angled, not compressed. 

 Stems branched : — 

 Leaves rounded reniform, 3-7-lobed 

 Leaves broadly reniform, 3-5-lobed 

 Leaves rounded reniform. Petals exceeding the sepals 

 Leaves much divided. Stem leafy. Aohenes minute 



b. Stems simple; rarely branched in B. Enysii; — 



Leaves rounded reniform. Petals shorter than the sepals . . 



Leaves few, multifid, coriaceous : oauline involucrafce 



Leaves numerous, 3-partite. Scape naked, shorter than the leaves . . 



Leaves few, 3-partite. Scape naked, stout, equalling the leaves 



Leaves multifid. Scape naked, shorter than the leaves 



Leaves ovate-oblong, multifid. Scape exceeding the leaves . . 



Leaves pinnate, with lobed segments, or 2-ternate, hairy 



Leaves 3-pinnatisect, silky or glabrate. Scape usually naked 



Leaves orbicular-reniform, 8-partite. Scape naked 



Leaves tetnately divided. Scape naked, exceeding the leaves 



Leaves 3-foUolate, exceeding the scape 



Leaves glabrous, 3-foliolate ; leaflets entire or 3-ternate 



Leaves glabrous, broadly reniform, 3-lobate. Scape with verticilate 



linear bracts 

 Leaves broadly reniform, 3-5-foliolate. Style spirally curved 



1. R. Lyallii. 



2. R. Traversii. 



3. R. insignis. 



i. R. Godleyanus. 

 5. B. Buchanani. 

 8- R. Monroi var. seri- 

 ceus. 



6. R. nivicola. 



7. R. geraniifolius. 



8. R. Monroi. 



* R. sceleratus. 



9. R. : 



10. R. Haastii. 



11. R. chordorhizos. 



12. R. pauciflorus. 



13. R. crithmifolius. 



14. R Sinclairii. 



15. R. gracilipes. 



16. R. sericophyllus. 



17. R. Berggrenii. 



18. R. Novae - Ze- 



landiae. 



19. R. recens. 



20. B. Enysii. 



21. R. verticillaius. 



22. R. tenuicaulis. 



♦** Achenes compressed, with u, thickened margin; style short, hooked; 



Stem branched. Leaves 3-foliolate or pinnately 2-ternate. Sepals de- 

 flexed 



Leaves entire, 3-lobed or toothed. Achenes numerous 



Leaves entire, lobed or 3-foliolate. Aohenes, 3-6 . . 



Stem simple. Leaves usually entire, lobed, or partite 



Leaves triangular-ovate, 3-foliolate or partite. Peduncles 1-4 



Leaves orbicular-ovate, 3-foliolate or partite. Peduncles 1-3 



Erect, much branched. Leaves 3-7-partite 



Decumbent, giving off stout runners. Leaves 3-foliolate, segments 

 acute 



Erect, stem swollen at the base. Leaves 3-foliolate, lobes obtuse 



**** Achenes glabrous, compressed, but not margined 

 Leaves silky-strigose, orbicular, 3-fid. Scape 2-laaved, 1-flowered 



B. Stems cheeping oh with creeping stolons. 

 Achenes glabrous. (See also 29. repens.) 

 much branched, and rooting at the nodes. Leaves 



Stems robust, 

 3-toothed 

 Leaves multifid, hirsute. Stolons short. 

 Stem creeping, and rooting at the nodes. 



Scapes naked, 1-flowered . 

 Leaves reniform, 3-partite 



30. B. Gheesemanii. 



31. B, depressiis. 



32. B. crassipes. 



