Additional file 1: of Unidirectional transitions in nectar gain and loss suggest food deception is a stable evolutionary strategy in Epidendrum (Orchidaceae): insights from anatomical and molecular evidence
Figure S1. Details of Epidendrum flowers, showing the cuniculi. (A) E. coronatum flower. The red rectangle indicates the pedicel region dissected by longitudinal sections in the remaining pictures (B–D). (B) Detail of the cuniculus of E. cristatum. The dotted line indicates the area from which most samples were taken for anatomical analyses. (C) Unornamented cuniculus of E. orchidiflorum. (D) Ornamented cuniculus of E. fulgens. Scale bars = 1.0 cm. (PDF 6036 kb)