Heterogonium giganteum Unknown type category: Blume s.n. Unknown type category: T. Lobb s.n. Unknown type category: Blume s.n. Unknown type category: Blume s.n. Sumatra, Lebong Tandai, Benkoelen, C. J. Brooks 81 S (MICH) Isotype: Sumatra, Lebong Tandai, Benkoelen, C. J. Brooks 81 S (BM) Unknown type category: Hutton Isotype: Sarawak, Bidi cave, Clemens 20745 (K) Sarawak, Bidi cave, Clemens 20745 (UC) Sarawak, Bidi cave, Clemens 20745 (NY) Unknown type category: Cult. Hort. Bot. Bog. ex Sibolangit, Sumatra, C. J. Brooks