Thani was on his way to the US when the airplane in which he was flying, Pan Am Flight 73, was hijacked in Karachi, Pakistan on September 5, 1986.
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During the next decade this tireless and prolific worker published numerous significant papers concerning such essentially tropical families as the Araceae, Clusiaceae, Menispermaceae, Mimosaceae and Sonnera tiaceae see Palynos 8(2): 7, Dec 1985.