DICOTYLEDONES. 33 



Zone are of this species ; as the different species of 

 Clover, Vetches, Peas, and Beans. Of the shrubs and 

 trees, are the Bladder-Senna (Colutea), Trefoil-tree 

 (Cytisus laburnum), and the False-Acacia (Robinia 

 pseudoacacia). 



10. Plants with compound anthera (Syngenistes 

 Composites) spread over the whole earth ; com- 

 mencing in the vicinity of snow, with dwarfish plants 

 of herbaceous quality ; viz. the Sow-thistle (Sonchus 

 alpinus), Mountain Hawkweed (Hieraciumalpinum), 

 Mountain Sawwort (Serratula alpina), Mountain- 

 Cudweed (Gnaphalium alpinum), Groundsel (Eri- 

 geron uniflorum and alpinum), Coltsfoot (Tus- 

 sttago frigida), some species of Milfoil (Achillea 

 nana and atrata\ Mountain Wormwood (Artemisia 

 glacialis), and the Dandelion (Leontodon nivale). 

 These attain their greatest perfection in the Tempe- 

 rate Zone ; the plants being for the most part herba- 

 ceous, with a few shrubs. 



11. The Umbellated plants (Umbellifera}, which 

 are related to the Syngenesia, commence at some 

 distance from the snow-line, in herbaceous plants ; 

 from thence spreading over the Temperate Zone to 

 the warmer climates, and increasing, in that direction, 

 in number, size, and beauty ; although the Temperate 

 Zone must be considered as their native country. 



a 



