B. montis-bismarckii

Journal of the Arnold Arboretum. Cambridge, Mass. Harvard University MERRILL & PERRY, PLANTAE ARCHBOLDIANAE, XI v. 24 (1943): Page 41-59 http://www.biodiversitylibrary.org/item/33600 This collection seems to be a very good. match for a fragmentary specimen collected by Schlechter from the Bismarck Mountains in Northeastern New Guinea.
Pests Diseases

• Classification: Species
• Plant Type: Shrub-like
• Botanical Section: Petermannia
• Origin: Asia, New Guinea
• Originator: Warburg in K. Schumann & Lauterbach, Fl. Deutsch. Schutzgeb. Südsee
• Date of Origin: 1905