Pachyptera linearis. A Flowering branch B Interpetiolar region with ENFs and prophylls of axillary buds 3-seriated, flattened and ensiform C Branchlets with terminal leaflet replaced by trifid tendril (leaflet fells) D Trifid tentril E Flower F Calyx external view G Open flower showing the androecium with anthers united H Stamen with villous and curved thecae I Gynoecium J Ovary surface pubescent (J.J. Wurdack 41357, K) K Fruit flattened, with an inconspicuous longitudinal midline L Seeds wingless (P. Stevenson 403, MO).