GENERAL OBSERVATIONS AND CONCLUSIONS. 449 



our cereals and to rice to make it worth the trouble of 

 planting it. They had a few bulbs and edible berries, 

 but they have not tried to cultivate them, having early 

 received the maize, which was worth far more. 



Patagonia and the Cape have not furnished a single 

 species. Australia and New Zealand have furnished one 

 tree. Eucalyptus globulus, and a vegetable, not very 

 nutritious, the Tctragonia. Their floras were entirely 

 wantincT in 2:ramin?e similar to the cereals, in lec^uminous 

 plants with edible seeds, in Crucifene with fleshy roots.^ 

 In the moist tropical region of Australia, rice and 

 Alocasia inacrorldza have been found wild, or perhaps 

 naturalized, but the greater part of the country sutlers 

 too much from drought to allow these species to become 

 widely diffused. 



In general, the austral regions had yqvj few annuals, 

 and among their restricted number none offered evident 

 advantages. Now annual species are the easiest to cul- 

 tivate. They have played a great part in the ancient 

 agriculture of other countries. 



In short, the original distribution of cultivated species 

 was very unequal. It had no proportion with the needs 

 of man or the extent of territory. 



Article II. — Kumber and ITature of Cultivated Species at 



Different Epochs. 



The species marked A in the table on pp. 437-4i() 

 must be regarded as of very ancient cultivation. They 

 are forty-four in number. Some of the sjiecies marked 

 B are probably as ancient, though it is impossible to 

 prove it. The five American species marked D are prob- 

 ably cultivated as early as those in the category C, or 

 the most ancient in the category B. 



As might be supposed, the species A are especially 

 plants provided with roots, seeds, and fruits proper for 

 the food of man. Afterwards come a few species having 



* See the list of the n^cful plants of Anptrnlia by Sir J. Hooker, 

 Flora Tasmania, p. ex. ; anel Buiitbain, Flora Anal ralicm^is, vii. p. 100. 



