BioStor
 | Provisional List of the Plants of the Bahama Islands John Gardiner (1889) Proceedings of The Academy of Natural Sciences of Philadelphia 41: 349-407 |
 | Vegetation on bauxitic soils in Jamaica, II R A Howard and G R Proctor (1957) Journal of the Arnold Arboretum 38: 151-169 |
 | ∑Miocene fossil woods from the Columbia basalts of Central Washington. J. Arnold Arb. 42: 165--203. U & E S Barghoorn Prakash (1961) Journal of the Arnold Arboretum 42: 165-203 |