2 7 6 



DICOTYLEDONS. 



toward the upper portion, 

 with the carpels enclosed 

 in the base (fig. 365). 

 5th. Here the receptacle is 

 cup-shaped or bell-shaped 

 and nearly closed at the 

 mouth as in the agrimony. 



Fig. 364. Fig. 365. 



Flowering raspberry (Rubus odoratus). Perigynous flower of rosa, with 



contracted receptacle. (From 

 Warming.) 



532. Lesson XII. The almond or plum family (amygdala- 

 ceae). The members of this family are trees or shrubs. The 

 common choke-cherry (fig. 366) will serve to represent one of 

 the types. The flowers of this species are borne in racemes. 

 The receptacle is cup-shaped. Only one seed in the single 

 carpel (sometimes two carpels) matures as the calyx falls away. 

 The outer portions of the ovary become the fleshy fruit, while 

 the inner portion becomes the hard stone with the seed in the 

 center. Such a fruit is a drupe. 



The floral formula for this family is as follows: 



Ca5,Co5,Ai5-2o or 30, Gi. 



533. Lesson XIII. The apple family (pomacese). This fam- 

 ily is represented by the apples, pears, quinces, june-berries, haw- 

 thorns, etc. The members are trees or shrubs. The receptacle is 

 somewhat cup-shaped and hollow. The perianth and stamens 



