36 SOUTH AFRICAN FLOWERING PLANTS. 



consisting of the enlarged top of the floral receptacle, 

 and bearing numerous free achenes (a). (7) is a ripe 

 achene, the style being removed ; and (8) is an achene 

 opened to show the single seed within it. (9) is the 

 seed extracted, and (10) the embryo removed from 

 the skin. 



Tribe, Poterieae. — The Agrimony 

 has been introduced from Europe, 

 but ClifforHia with forty species is 

 peculiar to South Africa. The 

 flowers of members of this tribe 

 have little receptacular tubes, at 

 the bottom of which are situated 

 two free carpels (Fig. 56, II.) ; but 

 while the Agrimony has a yellow 

 corolla with scented flowers, the 

 Cliffor'tia has no corolla and no 

 scent. It is also dioecious. 



Fig. 56, 1., is a male flower, con- 

 sisting of three sepals and oo sta- 

 mens; II. is a female flower (in 

 section), showing two sepals on the 

 receptacular tube and two carpels with long styles. 



Tribe, Roseae. — There is no wild rose native of 

 South Africa, but the Dog-rose of England has been 

 introduced, and occurs wild in the Peninsula. The 

 rose has very many species, many of which, as well as 

 numerous hybrids, are cultivated. It has a thick 



Fig. 5G.—Cliffor'tia. 

 Male flower." II. Verti- 

 cal section of female 

 flower. 



