114 JOURNAL OF THE EOYAL HORTICrLTURAL SOCIEXr. 



Brookweed (SamoUis Valerandi), common in marshy places, and a 

 member of the Primrose family, five little stumps will be seen alternating 

 with the five petals, so that they represent a lost whorl of stamens. The 

 parts of the flower, therefore, may be thus expressed : 



S. 



S. 



s. 



s. 



s. 



St. 



c. c. 



p. 



St. 



p. 



St. 



p. 



St. 



St. 



c. 



Thus the law o. alternation find^ itself restored. 



(sepals) 



(petals) 



(lost stamens) 



(stamens) 



(carpels) 



