BUTTERCUPS 203 
have only a calyx, and the corolla has changed all its 
petals into extra stamens. The plant climbs up its 
supporters by a unique method. It has no tendrils like 
the vine, nor does the stem as in the hop, but the leaf- 
stalks twist themselves around the neighbouring twigs 
and hold the plant firm. 
The nodding Wood Anemone has also dropped its 
WOOD ANEMONE. 
petals, or changed them into stamens, but, as recompense, 
the sepals are delicately coloured. Pure white within, 
they are generally of a purplish pink without, and very 
rarely one may find them of a pale blue, like the Hair- 
bell. A more finely coloured species, for which we must 
go again to our chalk-downs, is the comparatively rare 
Pasque-flower, in which the sepals open out into a star 
