Philodendron minarum Engl.

Hemi-epiphytic, sometimes epilithic vine. Stem: greyish-brown, internodes 0.5-2, intravaginal squamules evident, vinaceous, 1-1.2 x 1 mm, triangular. Prophyll 21 - 25 x 2.5 - 3 cm, narrowly lanceolate, pale to green with vinaceous base and margin. LEAVES: Petiole 19-36 cm long, green sometimes with vinaceous extrafloral nectaries. Leaf blade 27-41 x 17-23 cm, ovate to ovate-triangular or widely ovate, apex acute, base cordate or subcordate or subsagittate, distinctly paler on lower surface, subcoriaceus; anterior division 19-26 x 17-23 cm, primary lateral veins 3-6, midrib and primary lateral veins bright cream, posterior divisions 10-14 x 8-12 cm, acroscopic veins 2-3 per side, basioscopic veins 1-3 per side; basal veins 5-6 per side, none or rarely 1 free to base; posterior rib naked for 2-3.2 cm. INFLORESCENCE: 1 per floral sympodium; peduncle 8.5 cm long. Spathe 10-16.5 x 2-2.5 cm, ovate, weakly constricted, green with vinaceous grooves outside and cream with vinaceous base inside. Spadix 10-12 cm long, male zone 6.3-7 cm long, cream, male sterile zone 1-1.3 cm long, female zone 4.5-4.8 cm, long, pale green. Flowers: stamens 0.6-0.8 x 0.4-0.6 mm; intermediate staminodes 1-1.2 x 0.4-0.5 mm; gynoecium 1.2-1.5 x 0.8-1.2 mm, ovoid, ovary 4-6-locular, ovules 4-8 per locule, placentation sub-basal. Berries 3.8-4.5 x 3-3.8 mm, oblong. Seeds: 0.8-1.5 x 0.5-0.8 mm, ellipsoid. Fig.1. D