autoecious

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Spending all stages of the life cycle on the same host. Used of parasites.

from The Century Dictionary.

• In bryology, having both male and female inflorescence on the same plant; monœcious. Three modifications are cladautœcious, goniautœcious, and rhizautœcious. Also written autoicous.
• In mycology, passing through all its stages of development on the same host, as certain species of the genus Puccinia.

from the GNU version of the Collaborative International Dictionary of English.

• adjective (Biol.) Passing through all its stages on one host, as certain parasitic fungi; -- contrasted with heterœcious.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective Pertaining to a fungus, most often a rust, completing its life cycle on one host.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective of parasites especially rust fungi; completing the entire life cycle on a single host