Myrmecodia lamii is a myrmecophilous (ant-loving) epiphytic, or sometimes terrestrial plant in the gardenia family Rubiaceae native to New Guinea. It has a greatly swollen hypocotyl region containing numerous tunnels and chambers utilized by certain species of ants as a colony. This hypocotyl can measure up to height by up to wide, by far the largest known hypocotyl.Blumea Volume 37 Issue 2 (1993) pages 322-323 with illustration The total height of the plant, including the black and white ringed branches, comes to . The flowers are white or pale blue.Bihrmann, "Caudiciforms - Myrmecodia lamii" at https://bihrmann.com/Caudiciforms/subs/myr-lam-subs.asp The species was described in 1945 by Merrill and Perry. The type specimen was collected by Australian-American botanist Leonard John Brass at Lake Habbema on his 1938-39 expedition to New Guinea. The species was named after Herman Johannes Lam.
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