Barringtonia novae-hiberniae Syntype: Papua New Guinea, New Ireland, Namatanai., G. Peekel 139 Lectotype: Papua New Guinea, New Ireland, Namatanai., G. Peekel 139 (WRSL) Isotype: Solomon Is., San Cristoval Is., Waiamura, Brass 2598 (BISH) Solomon Is., San Cristoval Is., Waiamura, Brass 2598 (BM) Solomon Is., San Cristoval Is., Waiamura, Brass 2598 (SING) Holotype: Solomon Is., San Cristoval Is., Waiamura, Brass 2598 (A) Solomon Is., San Cristoval Is., Waiamura, Brass 2598 (BRI) Solomon Is., San Cristoval Is., Waiamura, Brass 2598 (L) Solomon Is., San Cristoval Is., Waiamura, Brass 2598 (BO) Holotype: Guppy 52 (K)