Philodendron alanbrantii Croat

Vining epiphyte to 5 m; internodes longer than broad at base, diminishing in size towards the apex of the plant, 1-14 cm long, 0.8-2.0 cm wide, drying finely ribbed on younger stems and with epidermis thin, light brown and smooth but flaking in age; cataphylls 9.7 cm long, unribbed, deciduous. LEAVES scattered along stem with petioles erect-spreading and with blades pendent; petioles 12.2-19.7 cm long, erect-spreading, shorter than blades, terete blackish drying; blades narrowly ovate-subcordate, 23.0-31.5 cm long, 12.9-14.3 cm wide, 2 times longer than wide, 1.8 times longer than petioles, dark brown-drying, gradually acuminate blades, cordulate at base; anterior lobe 20-27.5 cm long, broadly convex to weakly concave on the margins; posterior lobes 4.5-7.5 cm long, directed at ca. 130° angle, narrowly rounded at apex, sometimes weakly constricted midway on one side; basal veins 4 pairs, 1st pair and sometimes 2nd pair free to the base, 2nd pair sometimes fused 5-10 mm, 2nd & 3rd pairs fused 7-17 mm long; sinus 3.3-4.4 cm deep; midrib narrowly rounded and concolorous above, broadly rounded and drying darker than surface below; primary lateral veins 5-7 pairs arising at a 60° angle, sunken and concolorous above, narrowly rounded and darker below; minor veins fine and close, moderately indistinct. INFLORESCENCES 1-3 per axil; peduncle 2.5-3.5 cm long, 2-3 mm diam. upon drying; spathe 4.5-6 cm long, 1 cm diam., green with red blush at base, yellowish green to cream distally; spadix 4.2 cm long; pistillate portion 2.3 cm long, 2.6 mm diam. at base, 1.8 mm diam. at apex; pistils 2 mm long, 1.5 mm diam.; ovary 4-5-locular, ovoid-ellipsoid; styles 1.2-1.4 mm diam., the margins narrowly raised, drying pale brown, markedly undulate; stigma 0.2 mm diam., button-shaped, depressed medially; ovules oblong, 1-2 per locule, 0.4 mm long (including funicle), funicle about as long as ovule; staminate portion cream, 2.3 cm long, 2.5 mm diam.; sterile staminate portion 2.5 mm long, 1.8 mm diam. INFRUCTESCENCE with berries pink, green distally.