52 



V AKIO IS ¥( )( )D-PLANTS 



Fig. 59, III. — Jerusalem Artichoke. A, disk flower enlarged and out ver- 

 tically to show the single pistil with two stigmas, long style with nectar 

 glands at base, and one-celled ovary containing a single erect ovule; 

 appearing above the ovary is a tubular corolla dividing into five petal- 

 tips (of which but three are shown), and bearing as many stamens the 

 anthers of which are united into a tube; also appearing above the ovary 

 are slender Sepals; and at the ba.se of the flower a chaffy bract from the 

 axil of which the flower arises. A neutral ray-flower having no stamens 

 and only the vestige of a pistil in its rudimentary ovary, but showing 

 a chaffy bract at its ba.se, several sepals, and a much enlarged corolla 

 formed as if by the splitting of a tube nearly to the bottom along its 

 inner side. (Baillon.) 



Fig. 59, IV. — Jerusalem Artichoke. Fruit, side view, enlarged. The same 

 cut \'ertically to show the germ occupying the whole of the seed within. 

 (BaUlon.) 



