Hemi-epiphytic scandent vine, occasionaly terrestrial. Stem: ochre, internodes 3-4 cm long. LEAVES: Prophyll 28-30 x 2-3 cm, narrowly triangular, green with vinaceous nectaries at the base. Petiole 43-60 cm long. Leaf blade 51-59 x 24-27 cm, ovate to ovate triangular, apex acuminate, base sagittate-cordate, distinctly paler on lower surface, chartaceous to subcoriaceous; anterior division 36-42 x 24-27 cm, primary lateral veins 6-8 per side; posterior divisions 13-17 x 11-13 cm, acroscopic veins 2-3, basioscopic vein 1 per side; basal vein and posterior rib information lacking. IFLORESCENCE: 1-3 per floral sympodium, peduncle 3-4 cm long. Spathe 15-23 x 3-4 cm, narrowly ovate, weakly constricted, never closing apically after anthesis (Gonçalves 2002), green with small red nectaries outside, white inside. Spadix 14-20 cm long, male zone 5-12 cm long, cream; intermediate male sterile zone 1.5-2.5 cm long, cream; apical male sterile zone 3-4.5 cm long, very narrow at the end, cream; female zone 3.5-4 cm long, greenish. Flowers: stamens 2-2.5 x 2-2.3 mm; apical staminodes 2 x 1.5 mm; intermediate staminodes 3 x 1.3 mm; gynoecium 3 x 2.5 mm, cilindrical to obovoid, ovary with 10-11-locular, ovules 2-3 per locule, placentation sub-basal. INFRUCTESCENCE: Berries 2-4 x 2 mm, greenish.
Herbs scandent to hemiepiphytes, occasionally terrestrial. Stem creeping to decumbent, internodes 3-4. cm long, 3-4.3 cm diam., turning ochre, intravaginal squamules deciduous, small. Leaves 5-7 per plant; prophylls deciduous, 28-30 x 2-3 cm with small red nectaries at base; petioles 43-60 cm long, 0.5-0.8 cm diam. at apex, slightly flattened adaxially; leaf blade sagittate-cordate, 51-59 cm long, 24-27 cm wide, dark glossy green above, light glossy green below, drying brown; anterior division 36-42 X 24-27 cm, primary lateral veins 6-8 per side, arising at an angle of 60-70°; discolorous adaxially, clearer thart the leaf blade, concolorous abaxially, apex acuminate; posterior divisions 13-17 x 22-26 cm, acroscopic veins 3-4, basioscopic veins 2-3, basioscopic area of leaf blade well developed, usually overlapping in living plants, basal veins naked for 3-4 cm. Inflorescences 1-3 per axil; peduncles 3-4 x 0.6-0.8 cm; spathe green outside with small red nectaries, white within, very slightly constricted at middle, 15-23 cm long, 3-4.5 cm wide, apex shortly acuminate, never closing apically after anthesis; spadix 14-20 cm long, tapering to the apex, sterile apical appendix 3-4.5 x 0.4-0.5 cm, fertile male portion 5-12 x 0.6-0.8 cm, sterile male intermediate portion 1.5-2.5 x 1-1.2 cm, female portion cylindrical 3.5-4 x 1 cm, adnate to spathe for its basal third. Flowers: stamens 3-androus, subprismatic, 2-2.5 x 2-2.3 mm; staminodes prismatic, intermediate 3 x 1.3 mm, apical 2 X 1.5 mm; gynoecium 3 mm long, stigma rounded, almost as wide as the ovary, 1.5 mm diam.; style inconspicuous; ovary cylindrical to obovoid, 1.5-2 mm diam., 10-11 locular, locules 2-3 ovulate, ovules basally attached, funicles longer than the ovules. Infructescence: berries prismatic, greenish, 2-4 X 2 mm.
Critically Endangered (CR), B1, a, b (i, iii); extent of occurence < 100 km 2, this species occurs in two populations in Espírito Santo, in a region where the destruction of the original vegetation is comprehensive. One population is protected within the Reserva Biológica Santa Lúcia, and specimens are cultivated at Sítio Roberto Burle-Marx, in Rio de Janeiro.