Flora of the Hawaiian Islands
Literature for Kadua cordata subsp. remyi
Wagner & Lorence, 1998. Literature for Kadua cordata
Wagner et al., 1990, 1999. Literature for Kadua cordata supsp. cordata
Wagner & Lorence, 1998.. Literature for Kadua cordata subsp. waimeae
Wagner & Lorence, 1998.
   Rubiaceae -- The Coffee Family Bibliography
      Kadua cordata
General Information
Distribution
Habit
Subshrubs, usually few-branched; stems weakly erect to scandent, terete to weakly quadrangular, rarely sharply so, (6-)10-60 dm long, glabrous and usually conspicuously glaucous.
Leaves
Leaves glossy, thin and membranous to thickened and subcoriaceous or sometimes coriaceous, ovate to broadly ovate, elliptic-ovate, ovate-cordate, elliptic-oblong, elliptic, or sometimes lanceolate, 3-16 cm long, (0.8-)2.3-7.5 cm wide, lateral veins slightly to strongly impressed on upper surface, slightly to conspicuously raised on lower surface, higher order venation obscurely or sometimes conspicuously reticulate, glabrous or lower surface hirtellous, sometimes mostly along veins, lower surface also usually glaucous, margins flat or revolute, apex acuminate to long-acuminate, base broadly cuneate, rounded, subcordate, or occasionally attenuate, petioles 0-1 cm long, bases slightly connate, stipules deltate, usually carinate, 3-9 mm long, slightly connate and adnate to petioles, apex with a slender mucro (1-)2-5 mm long.
Flowers
Flowers perfect and pistillate, in terminal, compound, decussate, paniculate inflorescences, composed usually of congested cymes, these sometimes elongating monochasially and becoming open, pedicels quadrangular, 2-8(-15) mm long, inflorescences glabrous and usually strongly glaucous throughout, bracts of ultimate branches and each flower usually foliaceous and partly obscuring the flower, occasionally small and scale-like; hypanthium turbinate, 1.5-2.2 mm long; calyx lobes usually foliaceous, oblong-ovate, ovate to broadly ovate, (2-)4-8 mm long, (1-)1.5-2.5 mm wide, enlarging somewhat in fruit; corolla pale green to greenish yellow, greenish white, or cream-colored (var. remyi), rarely tinged purple, fleshy, usually glaucous, salverform, the tube (6-)9-17 mm long, larger corollas slightly enlarged distally, the limb not strongly quadrangular in bud, but apex depressed, the lobes (1.5-)2.5-7(-10) mm long at anthesis, strongly inflexed in bud, ± revolute; stamens inserted ca. 1-3 mm below corolla lobe sinuses; style woolly-villous in lower 2/3-1/3, apex 2(-4)-lobed.
Fruit
Capsules turbinate to subglobose, 2-4 mm long, 3-7 mm in diameter, dehiscing loculicidally across disk, pyrenes tardily dehiscing across disk septicidally, endocarp strongly to sometimes thinly sclerified, disk flat to slightly raised.
Seeds
Seeds dark brown, irregularly cuneiform, irregularly angled, darkly granular to reticulate-pitted.