ROSIFLORJ]. 



459 



shrubs with prickles (emergences), glandular bristles and com- 

 pound leaves. In the Raspberry (R. idce.us) the fruitlets unite 

 together and detach themselves from the receptacle. 



4. ROSBJ!. Rosa ; the receptacle is hollow, ovoid and contracted 

 beneath the insertion of the 



calyx (Fig. 498), ultimately 

 fleshy and coloured ; it encloses 

 a large number of fruitlets 

 which are achenes as hard as 

 stones (" hip," biologically a 

 berry). Shrubs with impari- 

 pinnate leaves and adnate 

 stipules. The sepals show clearly 

 the order of their development (a 

 divergence of ), the two outer ones 

 ou both sides are lobed, the third 

 one on one side only, and the two 

 last, whose edges are. covered by the others, are not lobed at all. Prickles 

 (emergences) are generally present and in some species are placed in regular 

 order, being found immediately below each leaf (usually two) although at some- 

 what varying heights. 



5. AGRIMONIES. The receptacle is more or less cup- or bell- 

 shaped, and almost closed at the mouth ; it is persistent and en- 

 velopes the nut-like fruitlets, but is dry, and in some species hard, 

 the fruitlets being firmly attached to it. In biological connection 



Fia. 498. Longitudinal secdon of flower 

 of Rosa. 



600. 



FIG. 499, 500. Agrimonia eupatoria. 



FIG. 499. Flower in longitudinal section. 



FIG. 500. Fruit and receptacle in longitudinal section. 



with this the number of the carpels is generally only 1 or 2, and 

 the whole becomes a false nut (Fig. 500). Herbs. Agrimonia 

 (Agrimony ; Figs. 499, 500) ; the perianth is 5-merous, stamens 

 5-20. The receptacle bears externally, on the upper surface, a 



