One can install either LMS 4.2 or NCS on the a physical (software on PRIME-NCS-APL-K9 hardware) or virtual appliance (software installed on customer-provided VM).
The two products (NCS and LMS) cannot coexist on a given appliance instance. This is due to change in the future as LMS and NCS merge under the Cisco Prime Infrastructure 2.0 release but for now they are distinct and separate products with a common approach and similar look and feel but requiring separate servers, whether physical or virtual.
Please refer to the ordering and licensing guide here.