'Algum trees' in the Bible

Send me also cedar trees, fir trees, and algum trees out of Lebanon: for I know that thy servants have skill to cut timber in Lebanon; and behold, my servants shall be with thy servants,

And the servants also of Huram, and the servants of Solomon, who brought gold from Ophir, brought algum trees and precious stones.

And the king made of the algum trees terraces to the house of the LORD, and to the king's palace, and harps and psalteries for singers: and there were none such seen before in the land of Judah.