Fig. 465: Ranunculus aquatilis: a-d, R. aquatilis var. hispidulous: a, habit, showing 

 submersed and floating leaves, the flowers and fruiting heads on long slender peduncles, 

 X %; b, flower, x 4; c, mature achenes, x 12; d, transitional forms of floating leaves, 

 showing toothed summit, x li;>. e-h, R. aquatilis var. capillaceus: e, habit, submersed 

 leaves only, the peduncle short and stout, x %; f, single petal, showing the low scale 

 surrounding the shallow nectariferous pit, x 8; g, achene from head comprised of about 

 35 achenes, x 12; h, achene from a head comprised of a few achenes, x 12. (From 

 Mason, Fig. 244). 



