GUIDE TO PLANT FAMILIES xxxi 



Page op 

 Families and 

 Species 

 Ovoid head, of 1- to 2-seeded berries, each 

 with a short curved beak at the tip. 

 Hydrastis in 



RANUNCULACEiE . . XXXV 



Head of small drupes on spongy or juicy 1 xxxvi, 

 receptacle. Rubus in RosACEyi': . J xxxvii 



Dry achenes borne on surface of enlarged 

 pulpy receptacle. Fragaria in RosACEiE xxxvi 



(E) Multiple Fruits 



Achenes covered by the succulent calyx, 

 the united spike forming a multiple fruit. 



MORACE.E .... XXXiv 



(F) Accessory Fruits 



Four-cleft calyx inclosing ovary and be- 

 coming berrylike in fruit. 



Lepargyrsea in 



El^agnace.e . . . xxxix 

 Five-toothed calyx inclosing capsule in 

 berrylike fruit. Gaultheria in 



Ericace^ . . . . xl 



(G) Miscellaneous 



Thick seed stalks bearing 2 naked seeds 

 resembling drupes in their fleshy blue 

 coverings. Caulophyllum in 



BeRBERIDACE.E . . XXXV 



Bony achenes in rather fleshy calyx tube. 



Rosa in Rosace.i: . xxxvi 

 Somewhat fleshy, dehiscent, 2- to 5-parted 

 pod with ariled seeds. 



Celastrace.e . . . xxxix 



