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                                                                    Exhibit 3.85

                            CERTIFICATE OF AMENDMENT

                                       OF

                         CAPSTAR CROSS KEYS COMPANY, L.L.C.

     1.  The name of the limited liability company is: CAPSTAR
CROSS KEYS COMPANY, L.L.C.

     2.  The Certificate of Formation of the limited liability company is
hereby amended as follows:

          "2.  The address of its registered office in the State of
Delaware is Corporation Trust Center, 1209 Orange Street, in the City of
Wilmington, County of New Castle. The name of its registered agent at such
address is: The Corporation Trust Company."

     3.  This Certificate of Amendment shall be effective on July 1, 1998.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate of
Amendment of CAPSTAR CROSS KEYS COMPANY, L.L.C. this 24th day of June, 1998

                                        /s/ Christopher L. Bennett
                                        ------------------------------
                                        Christopher L. Bennett
                                    By: Authorized Person

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                            CERTIFICATE OF FORMATION

                                       OF

                       CAPSTAR CROSS KEYS COMPANY, L.L.C.


     This Certificate of Formation of CAPSTAR CROSS KEYS COMPANY, L.L.C. (the
"LLC"), dated as of January 30, 1998, is being duly executed and filed by
William H. Reynolds, as an authorized person, to form a limited liability
company under the Delaware Limited Liability Company Act (6 Del.C. Section
18-101, et seq.).

     FIRST. The name of the limited liability company formed hereby is CapStar
Cross Keys Company, L.L.C.

     SECOND. The address of the registered office of the LLC in the State of
Delaware is c/o United Corporate Services, Inc., 15 East North Street, Dover,
Delaware 19901.

     THIRD. The name and address of the registered agent for service of process
on the LLC in the State of Delaware is United Corporate Services, Inc., 15 East
North Street, Dover, Delaware 19901.

     IN WITNESS WHEREOF, the undersigned has executed this Certificate of
Formation as of the date first above written.



                                   /s/ William H. Reynolds
                                       -------------------------
                                       William H. Reynolds
                                       Authorized Person