A.Weeks & Tye (B.L.Rob.) 2009 - Weeks A, Tye A (2009) Phylogeography of palo santo trees ( Bursera graveolens and Bursera malacophylla ; Burseraceae) in the Galápagos archipelago. Botanical Journal of the Linnean Society 161(4): 396-410. doi: 10.1111/j.1095-8339.2009.01008.x.
There is no corrections for Bursera graveolens subsp. malacophylla yet.