Phylogenetic placement of the mysterious Malagasy genus Ambrella H. Perrier (Vandeae, Orchidaceae)

The results of this study provide new insight into the evolutionary history of <i>Ambrella</i> and clarify its phylogenetic position within Vandeae. Despite forming a well-supported clade with other Malagasy genera such as <i>Cryptopus</i>, <i>Oeonia</i>, and <i>Neobathiea</i>, <i>Ambrella</i> maintains clear morphological distinctiveness, particularly in its floral architecture. This suggests that its most striking morphological features may have evolved independently.