152 NATURAL HISTORY OF PLANTS. 



obconical or subturbinate sac, bears on the margin of its upper orifice : 

 a calyx with five teeth, often obtuse, generally not very distinct, often 

 even almost nil; five alternate oval petals, inflexed at the summit 

 and forming together a small pendant key in the bud, more or less 



Alalia Ginseng. 



Fig. 186. Root (}). Fig. 185. Fructiferous stem. 



imbricate in prefloration ; five alternipetalous stamens, inserted 

 under the margin of an epigynous disk ' corresponding to the union 

 of the stylopods of other Umbelliferce. Each stamen has a free 

 filament, inflexed in the bud and replicate upon itself close to the 

 summit, so that the anther, later oscillant, is introrse, as well in the 

 bud, when the filament is incurved, as in the newly opened flower, 

 when the filament is erect and has become exserted. It is, moreover. 



1 It is clearly seen in certain species in which tissue, sometimes coloured. In the flower of A. 



the summit of the ovary emerges more or less japonica (fig. 187, 188), this hed is smooth and 



from the receptacle, that it is this apical portion yellow, 

 of the ovary which thickens to a glandular 



