Botanica

It became evident quite quickly that the greenhouses were not going to be able to supply the food needs of the entire population living in the Metros.   Wunt and his designers created a Metro completely designed to farm.  Still centered around a spire, the Botanica are farms of the future.  Each rivals the Metros in size, but not in living capacity.  Instead of industry and living space, the Botanica are reserved for food and grown resources.  They follow the same rules as the Metro.  A Central Botanica controls a Hub Botanica.  This in turn controls Basic Botanica.

Represented by blue on the map above