Araceae
Anthurium palmarense Croat
SUMMARY
Terrestrial or epiphytic vine; caudex elongated, rooting at the nodes; roots slender, purplish; internodes terete,3–5 cm long, c. 5 mm diam., dark purple, blackish green or black; cataphylls persisting as closely-meshed brown fibres enclosing most of the length of the adjacent internodes. Leaves with petiole narrowly, obtusely and moderately deeply sulcate, slightly clasping at base, 3–8 cm long, c. 2 mm diam., often covered with black fungus; blade ovate-lanceolate, long-acuminate at apex (acumen to 1.5 cm long), rounded or obtuse at base, widest below the middle, 7.5–14 cm long, 3–4.8 cm wide, averaging 10.5 × 4 cm, 2.3–3.2 × longer than wide, 1.4–2.5 × longer than petiole, subcoriaceous, purplish green when young, drying greyish green and nearly matte above, light greyish green and semiglossy below; upper surface eglandular, drying densely and conspicuously areolate; lower surface drying moderately smooth, dark yellowbrown glandular-punctate; midrib raised and concolorous above, rounded and drying yellow-green below; primary lateral veins 10–15 pairs, rising at 50–65° angle, flat above and only slightly raised below, concolorous with the blade and inconspicuous; collective veins arising from the basal veins, 3–5 mm from margin; basal veins 1 pair, forming the collective veins. Inflorescences rising at 50–90° angle from the caudex; peduncle terete, very slender, 5.5–7.5 cm long, c. 1 mm diam. upon drying; spathe narrowly lanceolate, spreading, with the margins turned under, truncate and short-cuspidate at apex, 1.2–2 cm long, 6–7 mm wide (drying 2–4 mm wide), purplish yellow-green, light purple or purplish red or dark reddish violet; spadix conspicuously dark violet-purple to light violet-purple, stipitate for 1 mm, cylindrical, 2.8–3.5 cm long, 2–3.5 mm diam. Flowers 3–3.8 mm long, 2.3 mm wide, tepals drying densely granular, lateral tepals 1.2–1.4 mm wide, the outer margins 2-sided; anthers 0.2 mm long, 0.3 mm wide, held at the level of the tepals, white, the pollen yellowish brown. Infructescences erect; berries oblate, white with green stylar region, 6–9 mm diam.