On the Cultivated Potato. 299 
Fig. 2. — Tubers and Boot-fibres o/Solanum tuberosum, from the same 
Plate as Fig. 1. 
The following is Mr. Baker's summary of the conclusions at 
which he had arrived and set forth at length, in the paper read 
before the Linnean Society : — 
" That there are six distinct species of tuber-bearing Solanum, 
viz. : 
"1. S. tuberosum^ with many varieties, extending as a wild 
plant from Chili to the Rocky Mountains ; climate always cool^ 
equable, dry. 
