Climbing plants often fail to reach the canopy and reproductive maturity because they fail to locate appropriate structures on which to climb (Putz 1984). Only species with adhesive tendrils or adventitious roots, i.e., bole climbers, can directly ascend trees in excess of 30-40 cm dbh (stem diameter at breast height (1.4 m)); tendril climbers and twiners, in particular, are relegated to support structures of small diameter (e.g., Putz and Holbrook 1991).