ROSALES. 525 



sometimes variously united afterwards with the calyx-tube, 



Fig. 469. IHoncea miitclpula. Plant with flower-stalk. Natural size. 

 Fip 470 Flower-cluster. Natural size. 

 Fig. 4Tl.-Pi8til cut vertically. Magnified. 



or enclosed in the swollen top of the peduncle ; styles usu- 

 ally distinct. 

 Order Haloragew, Mostly aquatic herbs, about eighty species, 



