Flora of the Hawaiian Islands
Dicotyledon Literature for Bobea timonioides
Wagner et al., 1990, 1999.
   Rubiaceae -- The Coffee Family Bibliography
      Bobea timonioides
General Information
DistributionHawaiian Islands.In the Hawaiian Islands, endemic to Kaua`i, O`ahu, Maui, Hawai`i.

Rubiaceae - Bobea timonioides

Click here for detailed USGS map by Jonathan Price
Trees up to 10 m tall; young branches ca. 2.5 mm in diameter toward apex, appressed puberulent to sericeous.
Leaves chartaceous to subcoriaceous, ovate to lanceolate or elliptic, 4-10(-13) cm long, 2-6.5 cm wide, secondary nerves 4-7 on each side of midrib, upper surface glabrous or sparsely pubescent on midrib, lower surface sparsely appressed pubescent on midrib and nerves, domatia plane to somewhat elevated and with porate to slit-like openings in axils of secondary nerves, apex acute to acuminate, base acute to obtuse or rounded, petioles 5-25 mm long, pubescent, stipules deltate to lanceolate, valvate in bud, 1.5-4 mm long, ca. 2.5 mm wide, acute, upper surface villous, lower surface appressed pubescent.
Flowers perfect or functionally unisexual, 4(5)-merous; staminate and perfect flowers 3-7 in cymes, peduncles 12-20 mm long, ca. 1 mm wide, calyx limb cupular, dentate, up to 1.5 mm long, appressed pubescent externally, the teeth deltate, often unequal, up to 1 mm long, corolla salverform, the tube 6-11 mm long, ca. 1.2 mm wide, appressed pubescent externally, subglabrous within, the lobes ovate, ca. 3 mm long, ca. 2 mm wide, obtuse, stamens inserted below corolla throat, anthers sessile, ca. 3.5 mm long, ca. 0.5 mm wide, ovary usually abortive, up to 2 mm long, 2(-4)-celled, style subterete, 2-5.5 mm long, densely appressed strigillose, stigmas 2-4, equal or unequal, 1-3 mm long; pistillate flowers solitary, peduncles up to 15 mm long, calyx limb as in staminate flowers, corolla salverform, the tube 5.5-10 mm long, ca. 0.8 mm wide, staminodia subsessile, ca. 2.2 mm long, ca. 0.5 mm wide, ovary ca. 3 mm long, 5-7-celled, style 5-8.5 mm long, densely appressed strigillose, stigmas 5-6, linear, 1-2 mm long, exserted.
Fruit ovoid to subglobose, 7-10 mm in diameter, sparsely pubescent, pyrenes (2-)4-7.