Araceae
Anthurium cachoeirense Théofilo & Sakur.
Nomenclature
SUMMARY
Terrestrial; stem elongated and erect; internodes 0.5–0.7 cm long; prophylls and cataphylls greenish when young, brownish when old, slightly decomposed to decomposed in fibers at the apex, decomposed into fibers at the stem base, 2.4–3.9 cm long; sheath 1.3–1.5 cm long; petiole 7.5–8.2 × 0.50–0.55 cm, green covered with white speckles, sulcate adaxially with acute margins, rounded abaxially; geniculum greenish, thicker than the petiole, slightly grooved with sharp acute adaxially, rounded abaxially, 0.8–0.9 cm long; blade elliptical to lanceolate, subchartaceous, drying chartaceous, apex acute, base obtuse to truncated, greenish, shiny on both sides, strongly contrasting colors on the two surfaces, upper surface dark-green, lower surface light green, 39.5–41.5 × 9.8–11.0 cm; midrib flat adaxially at proximal direction becoming prominent and rounded at distal direction, acute abaxially at proximal direction becoming prominent and rounded at distal direction, lighter as the blade adaxially; primary lateral veins obscure or barely visible adaxially, darker than the blade abaxially, drying prominent, little differentiated from the finer veins, 28–31 on each side, forming an angle of 18–35° at the base of the blade and towards the middle, 32–45° at the apex, infra-marginal collective vein starting from the leaf base or, more rarely up to 4.3 cm above it, 0.4–1.0 cm from margin; peduncle 1–2-carinate, green covered with white speckles, 23.1–31.1 × 0.35–0.40 cm; spathe membranaceous, greenish with purplish hues, boat-shaped, deflexed at anthesis, reflexed in post-anthesis, ovate to lanceolate, apex acute, forming an acute angle with the peduncle, 6.2–7.5 × 0.9–2.0 cm, decurrent 0.45–0.48 cm long; spadix sessile, rarely stipitate, greenish at anthesis, brownish in post-anthesis, cylindrical, tapered, 6.0–7.2 × 0.6–0.8 cm, stipe vinaceous, 0.2–0.3 cm long; 6–7 flowers per principal spiral and 9–10 per alternate spiral; tepals greenish until anthesis, brownish at the apex, becoming whitish towards the base post anthesis, hooded, dorsally acute, internally convex, lateral tepals 2.0–2.1 × 1.0–1.2 mm, anterior and posterior tepals 1.9–2.0 × 0.9–1.0 mm, filaments flattened, striated, 1.4–1.5 × 1.0–1.3 mm, anthers dorsifixed, extrorse, 0.8–0.9 x 0.4–0.6 mm, pistils greenish, cylindrical to obovoid, mesophyll with raphid cells, stigma sessile, ovary 2-locular, one ovule per locule, placentation axial, funicle glabrous, 1.8–2.4 × 1.0–1.2 mm; infructescence unknown.