Philodendron hederaceum var. kirkbridei Croat

Hemiepiphyte; internodes 2--28 cm long, 1--2.5 cm diam., weakly flattened on one side with two sharply raised ribs on the side above petiole, very weakly sulcate on the opposite rounded side, prominently ribbed throughout its circumference, the ribs smooth or prominently warty, 2--28 cm long, 1--2.5 cm diam., medium to dark green, matte, drying reddish brown; cataphylls 6--19 cm long, unribbed or sometimes weakly 2-ribbed, deciduous intact; LEAVES: petioles (6.5)8--22.5 cm long, 3--6 mm diam.; blades (11)16--29.5(42) cm long, (8)10.3-23(35) cm wide; upper surface medium to dark green, drying brown to greenish brown, lower surface medium green, glossy, drying brown to greenish brown; primary lateral veins 3--4 per side, departing mdirib at a 45--50º angle. INFLORESCENCES 1 per axil; peduncle 5.5--7.5 cm long; spathe 14--24 cm long, spathe blades yellow-green becoming cream colored toward apex outside, lighter green inside; spadix stipitate to 1 cm; 13--20 cm long; ovary 5-locular, 20--25 ovules per locule. INFRUCTESCENCE with about 24 seeds per locule.