Talks on the future of U.S. basing rights collapsed Friday in a dispute over time and money, and a "very disappointed" chief American envoy flew home to Washington, officials said.

Special negotiator Richard Armitage left Manila after five days of discussions with Foreign Secretary Raul Manglapus to report to President Bush on the fallen talks.Spokesmen could not say if there will be another meeting after the sixth round of talks bogged down on such issues as how much the United States is willing to pay and how long the Philippines is willing to extend the 44-year-old lease.

"Mr. Armitage is very disappointed we have not made progress this week," said U.S. spokesman Stanley Schrager. "He is not returning to the United States to get more money," he said. "There is a limit" to how much the United States is willing to pay the cash-strapped Philippines, he said.

The 1947 lease on the giant Clark Air Base, Subic Bay Naval Station and four smaller facilities expires Sept. 16.

Manglapus reported to President Corazon Aquino at the close of the discussion, but details of the meeting were not disclosed.

Aquino offered to renew the agreement for seven years for an annual $400 million in cash and $425 million in trade benefits.

Washington proposed a 10- to 12-year extension for $360 million annually. The United States provided the Philippines with $481 million in each of the past two years of the treaty for use of the six facilities manned by 14,500 troops.

It has agreed to give the four small facilities to the Philippines.