xl D I COTS. ERICALES PLUMB AGINALES 



A; B 



Sympetalae (fl. usu. sympetalous) 



A. Fls. sometimes polypetalous; 2 or i whorls of sta. ; usu. hypog. , 

 rarely epig. (Orders i 3). 



i. ERICALES. Woody pi. 01 herbs with simple 1. and usu. reg. 

 5 4-merous fls. ; C usu. united, A hypog. or epig., rarely united 

 to pets, at base, obdipl., or whorl before C not developed, 

 G i oo, usu. before C when equal in number, sup. to inf., ov. 

 with i integ. 



2. PRIMULALES. Fls. 5 or <? ? , reg., rarely [-, 5 (rarely 400)- 

 merous, usu. with i whorl of epipet. sta., rarely also 5 opp. K.: 

 C usu. united, G apparently as many as C, sup. to inf., i-loc. 

 with oo i ov. on basal or free-central plac. 



PLUMBAGINALES. Shrubs, undershrubs or herbs with simple 

 1., often with water- or chalk-secreting glands and cpd. infl. of 

 $ Ms. ; C or (C), A in i whorl, G (5) with 5 stigs., i-loc. with 

 i ov. ; endosp. st-archy. 



Fls. sympet. only; sta. sometimes oo , usu. in 3 2 whorls; fl. usu. 

 hypog. (Order 4). 



