Questions about Recognized Ubuntu derivatives.
Derivatives, also known as Flavors, are different versions of Ubuntu that are customized for different uses.
These are derivatives that use Ubuntu as their foundation and contribute significantly towards the project.
Xubuntu - Ubuntu with the XFCE desktop environment
Ubuntu Studio - Designed for multimedia editing and creation
Mythbuntu - Designed for creating a home theatre PC with MythTV
Kubuntu - Ubuntu with the K Desktop environment
Edubuntu - Ubuntu for education
Lubuntu - Ubuntu that uses the LXDE, or the Lightweight X Desktop Environment.