14° DICOTYLEDONS 



margins J a third sepal has one exposed margin which is 



and 



Fig. i68. — Vertical section of flower of Dbg Rose. 



Fig. i6g. — A carpel of ditto, with the ovary cut down the centre. 



bearded, and the other margin concealed 

 and not bearded (entire) ; finally, the fourth 

 and fifth sepals are completely overlapped 

 by the others, and have both margins even. 

 Petals (cor) five, separate. Stamens (and) 

 numerous, perigynous, curved inwards 

 in the flower-bud. Receptacle (re) [often 

 termed the calyx-tube^ deeply hollowed, so 

 as to be urn-shaped, with its opening 

 narrowed above. The sepals, petals, and 

 stamens are inserted round the margin 

 ■ of the opening ; they are all perigynous. 

 A disk (d) clothes the lips and coats the 

 lining of the receptacle-tube above the 

 insertion of the carpels. The disk has 

 not been seen to pour out honey. Carpels 

 numerous, apocarpous ; the many separate 

 ovaries (ov) are concealed inside tube 

 of the receptacle, and are inserted on its 

 base and sides. They are superior, because 

 they are not indistinguishably fused with 



^ Fig. 170. — Vertical sec- 

 tion of compound fruit of 

 Dog Rose : ov — pericarp 

 of a simple fruit ; ts= 

 testa of seed ; f =enihr30 

 re = concave receptacle. 



