KANUNCULACE.E 



No. 2. Broadly obovate-cuneate, obscurely five-nerved with five 

 large teeth above. 



No. 3. Tripartite ; divisions cuneate, tridentate above, basal 

 ones not opposite. 



No. 4. Tripartite, with the basal divisions nearly opposite, teeth 

 more numerous above. 



No. 5. Trisected ; middle segment acutely cuneate, unequally 

 trifid, lobes slightly toothed at the apex ; lateral segments bipartite 

 with their anterior lobes trifid, narrowly cuneate, and their posterior 

 lobes bifid above. 



No. 6. Trisected ; middle segment tripartite, divisions linear, 

 entire or slightly toothed ; lateral segments bipartite, divisions 

 divaricate, more or less cut up into linear pieces. 



Ranunculus hederaceus (fig. 128). 



Primary root as in E. acris, but few lateral rootlets. 



Hypocotyl suppressed. 



Cotyledons opposite, nearly equal ; 

 base of petioles sheathing, petioles 

 about 10 mm. long, '75 mm. broad, 

 blade 7' 5 mm. long and nearly as broad, 

 suborbicular, rounded at both ends, 

 slightly emarginate, distinctly penni- 

 nerved, reticulate, glabrous, membra- 

 nous, bright green. 



Leaves radical and cauline, alternate, 

 exstipulate, petiolate. 



No. 1. Petiole glabrous, channelled, 

 sheathing at base, 20 mm. long, 1 mm. 

 broad ; lamina broadly cordate, trifid, 

 palmatinerved, reticulate, glabrous, 

 bright green, 10-15 mm. long, and as 

 broad. 



No. 2. Similar but five-fid. 



NOTE. The cotyledons of K. tubero- 

 sus, E. caucasicus, E. Flammula, E. 

 Borseanus, E. macrophyllus, E. Brutius, 

 E. Stevensi, E. cortusaefolius, and possibly many others, have 

 their cotyledons slightly emarginate when fully developed. 



Ranunculus repens, L. (fig. 129). 



Hypocotyl erect, terete, short, mostly subterranean, colourless, 

 glabrous. 



FIG. 128. 



Ranunculus hederaceus. 

 size. 



Nat. 



