156 



WATSIDE WEEDS. 



the old familiar terms calyx and corolla give place to 

 that of perianth, which is appHed to the floral cover- 

 ings, even although they appear external to, and 

 distinct from one another, as in the snowdrop 

 (Pig. 95). In the latter flower, observe, there are 



Fi6. 96.— Common Snowdrop : 1, outer pieces of periantH ; 2, inner pieces 

 perianth j 3, ovary ; 4, bract ; 6, straight-veined leaves. 



three external divisions of the perianth, and three 

 within these ; there are six stamens and three lobes 

 to the stigma ; lastly, the leaves are straight-veined^ 

 so that altogether the pretty little snowdrop is a 



