Anthurium idimae Theófilo & Nadruz

Terrestrial to rupicolous herb; stem elongated, erect; internodes 0.7–1.5 cm long; prophylls and cataphylls greenish when young, brownish to chestnut when old, persistent and entire at the apex, deciduous at the stem base, 5.8–13.0 × 3.0–3.5 cm; sheath 2.0–2.4 cm long; petiole erect, greenish, flat with obtuse margins toward the base and slightly sulcate with acute margins toward the apex, rounded abaxially, 16.0–20.5 × 0.7–0.9 cm; geniculum greenish, thicker than the petiole, flattened with acute margins adaxially, rounded abaxially, 1.2–1.6 cm long; leaf blade erect, elliptic, lanceolate to ovate, chartaceous when fresh, coriaceous when dry, apex acute to mucronate, base truncate to cordate, with strongly contrasting colors on the two surfaces, upper surface dark-green and semiglossy, lower surface light green and matte, 54.0–58.7 × 16.0–18.3 cm; anterior lobe 33.3–42.8 cm long; posterior lobes 1.5–2.8 cm long, rounded at apex, the sinus parabolic to hippocrepiform; midrib greenish and lighter than the blade adaxially, flattened at the base, rounded and prominent at the apex adaxially, rounded and prominent abaxially; basal vein 1; primary lateral veins obscured adaxially when fresh, obscured to darker than the blade abaxially when fresh, very differentiated from the finer veins when dried, 18–38 on both sides, arched, forming an angle of 10–40° with the midrib at the leaf base, 8–30° in the middle, 15–45° at the apex; infra-marginal collective vein starting from the leaf base or, more rarely 5.8 cm above it, 0.6–1.5 cm from margin. Inflorescences erect, peduncle terete to slight 1-ribbed, greenish, geniculum present or absent at the apex, 9.0–16.1 cm long, 0.6–0.7 cm diam., 0.5 times to 0.8 times shorter than petiole; spathe membranaceous, greenish, ovate to lanceolate, erect or inserted at 45–50° angle, frequently damage by herbivores postanthesis, 8.2–10.2 × 3.1–4.0 cm, forming an acute angle with the peduncle, decurrent 1.0–1.1 cm long; spadix sessile to stipitate, 9.7–12.3 cm long, 0.8–0.9 cm diam., tapered, yellowish in pre-anthesis, purplish at anthesis, brownish up to fruiting, stipe 0.1–0.2 cm long; 6–9 flowers visible in the principal spiral and 5–7 visible in the alternate spiral; tepals purplish until anthesis, brownish at the apex, becoming whitish towards the base post-anthesis and in fruit, dorsally acute, internally convex; lateral tepals 1.8–2.5 × 0.80–1.1 mm; tepals anterior/posterior 1.7–2.3 × 0.80–1.0 mm; filaments flattened, striated, 1.5–2.0 × 0.8–1.0 mm; anthers dorsifixed, extrorse, 0.70–0.75 × 0.50–0.55 mm; pistils whitish, cylindrical, mesophyll with raphid cells; sessile stigma, unicellular secretory trichomes extending up to the stylar canal; ovary bilocular 2.0–2.2 × 0.80–1.0 mm; one ovule per locule, axial placentation, glabrous funicle. Immature berries greenish at the apex, whitish on the base; mature berries greenish at the apex, densely whitish speckled, becoming white translucent at the base. Seeds not seen.