Asplenium rhizophyllum one collection on sandstone in the Shawnee Hills of Illinois. A triploid hybrid between walking fern and Tutwiler's spleenwort was accidentally produced in culture. A similar plant collected from limestone in Shepherdstown, West Virginia could have originated from the same parents, from an unreduced (diploid) gametophyte of Scott's spleenwort crossed with walking fern, or from an unreduced walking fern gametophyte crossed with ebony spleenwort. In 1813, Henry Muhlenberg listed lobed spleenwort as "Asplenium rhizophyllum" var. "pinnatifidum", although he did not provide a description distinguishing the variety from the typical species. It was described as the species "A. pinnatifidum" by Thomas
Fuel Manufacturing Pilot Plant is under IAEA safeguards. Fuel Manufacturing Pilot Plant The Fuel Manufacturing Pilot Plant (FMPP), also known as Fuel Element Fabrication Plant, is a nuclear fuel fabrication facility supplied by the Argentine company INVAP in 1998. The FMPP is considered a Material Testing Reactor (MTR)-type fuel element facility, that produces the fuel elements required for the research reactor ETRR-2. The plant uses enriched uranium hexaflouride (UF6, 19.75% U235) as a raw material which is processed to produce the final MTR-type fuel elements. The FMPP is owned and operated by the Egyptian Atomic Energy Authority (AEA) at the Nuclear Research Center in