Flora of the Hawaiian Islands
Dicotyledon Literature for Psychotria mauiensis
Wagner et al., 1990, 1999.
   Rubiaceae -- The Coffee Family Bibliography
      Psychotria mauiensis

Common name(s): kopiko, `opiko
General Information
DistributionIn the Hawaiian Islands, endemic to Kaua`i, Moloka`i, Lana`i, Maui, Hawai`i.















Click here for detailed USGS map by Jonathan Price
Habit
Plants extremely variable in habit, from shrubs up to 4 m tall to trees up to 12 m tall; branches grayish brown, chestnut brown, or yellowish brown.
Leaves
Leaves membranous to coriaceous, broadly obovate to oblanceolate, elliptic, or suborbicular, 1.8-13 cm long, 1-9.3 cm wide, lateral veins 4-10 pairs, glabrous or pubescent, domatia absent or inconspicuous, margins revolute or sometimes flat, apex obtuse or rounded, base acute, rounded, or subtruncate, sometimes sessile, but usually with petioles 0.5-2 cm long, stipules deltate-ovate to broadly obovate, up to 6(-15) mm long.
Flowers
Flowers functionally unisexual, 4-5-merous, inflorescences with 1 main axis and 1-2 nodes of verticillate branching, the branches often again divaricately or verticillately branched, peduncles and branches glabrous or pubescent, the ultimate branches terminated by a 3-flowered cymule, peduncles 1-7.4 cm long, lateral flowers of each cymule often on small pedicels, branches subtended by small bracts; calyx 2-2.8 mm long, glabrous or sometimes pubescent or hirtellous, truncate or with short obtuse lobes; corolla tube 1-2 mm long, somewhat expanded toward apex, throat glabrous, the lobes often thick, broadly ovate to lanceolate, 1.2-2.9 mm long, glabrous or occasionally pubescent on lower surface and at apex; filaments of staminate flowers up to 1 mm long at anthesis; anthers attached at base, ovate-oblong, 0.7-0.9 mm long; ovary 1.5-2.5 mm long at anthesis; style 0.5-2.5 mm long, glabrous or pubescent; stigmas divaricate, 0.6-2 mm long, glabrous or pubescent.
Fruit
Fruit oblong-pyriform, 9-15 mm long, ± with disk protruding somewhat from the short persistent calyx, pyrenes hemispherical in cross section, with T-shaped invaginations of the seed coat on the ventral surface.
Notes
This species is extrememly variable in features such as leaf shape and size, pubescence, and size of the floral parts.