Fig. 1.

Phylogenetic relationship of 11 species from the Oncidiinae with photosynthetic pathways ranging from strong CAM (red shading) to weak CAM (yellow shading), and C₃ photosynthesis (green shading). The phylogeny was reconstructed using sequences of nrITS-1 and -2, plastid DNA ycf1, matk, and the trnH–psbA intergeneric spacer. Eulophia graminea was used as the outgroup. Values on the branches represent bootstrap support (%). Accession numbers next to each species correspond to the voucher specimens deposited at the University of Florida Herbarium (FLAS). Representative images of corresponding floral morphology are shown to the right of each species designator. Photos by K. Silvera.