Flora of the Hawaiian Islands
Dicotyledon Literature for Pteralyxia macrocarpa
Wagner et al., 1990, 1999.
   Apocynaceae -- The Dogbane, Milkweed Family Bibliography
      Pteralyxia macrocarpa
General Information
DistributionIn the Hawaiian Islands, endemic to O`ahu.

Click here for detailed USGS map by Jonathan Price
Trees 8-15 m tall.
Leaves dark green and shiny on upper surface, lower surface paler and dull, often brittle, very broadly elliptic to obovate to suborbicular, rarely broadly oblanceolate, blades 9.2-18(-23) cm long, 4.5-7.7(-10.5) cm wide, margins revolute or flat, apex acute to rounded, petioles (1.5-)2.3-4.5(-5.5) cm long.
Corolla tube 7-9 mm long, the lobes ca. 2 mm long.
Endocarp with the central and lateral wings or ridges prominent, 3-15 mm high, these often fenestrated, occasionally the central wings reduced.