Anthurium donovaniae Croat

Internodes not seen; cataphylls persisting intact 10 - 15 cm, drying dark reddish brown. LEAVES 67.3 cm long with petioles narrowly sulcate adaxially, 26.3 cm long, 0.5 cm diam., geniculum reddish, 2 cm long, 1 cm diam., drying reddish brown; blades ovate, coriaceous, 41.5 cm long, 34 cm wide 1/3 length from the base, retuse, apiculate at apex, subcordate at base, margins slightly turned under; sinus 1.7 cm deep, 8 cm wide; upper surface semiglossy, drying greenish grey; lower surface drying semiglossy, yellow-green with dark uniformly scattered dark glandular punctations; midrib sharply raised, tinged with red below, drying broadly rounded, finely ribbed below; primary lateral veins 7 pairs arising from the midvein at a 40 - 45° angle and ending in the 1st basal vein, the 1st pair of primary lateral veins loop connect to the 2nd and 3rd pair before joining the 1st basal vein, concolorous, flat to sunken above, slightly raised and inconspicuous on the lower surface; basal veins 3 pairs, much more prominent than primary lateral veins, larger, more steeply raised, 1st pair arising from the petiolar plexus at 55° angle, receiving the primary lateral veins and ending at the apex, 2nd pair arising from the plexus at a 20° angle and margining out above the middle of the blade, 3rd pair arising from the plexus and margining out 1/4 the length of the blade. INFLORESCENCE 75.9 cm long, erect with peduncle 60.2 cm long, 0.5 cm diam., sulcate adaxially; spathe oblong-lanceolate with a long, tapering apex, 15.8 cm long, 2 cm wide, spadix 15.7 cm long, 1.2 cm diam., slightly curved and tapering; flowers 6 - 8 visible per spiral, 1.9 mm long, 2.0 mm wide; tepals drying glossy, papillate, lateral tepals width 1.2 mm.