Anthurium straminopetiolum Croat

Terrestrial; internodes 6.0-9.0 cm long, .5-.7 cm diam., drying light grayish green, coarsely granular, wispy; cataphylls 5.0-10.2 cm long, .6-1.0 cm wide, pale yellow, gradually narrowing toward apex, dense dispersion of pale linear, minute ribs resembling waves; petioles 25.4-33.2 cm long, .4-.6 cm wide, drying pale grayish-yellow, moderate to deeply ribbed areas; geniculum 1.3-1.5 cm long, .3-.5 cm wide, drying with a darker shade of grayish-yellow, deeply ribbed on upper surface, round-raised on lower surface; blades ovate, 31.3-40.7 cm long, 15.8-24.6 cm wide, 1.8 times longer than broad, slightly to moderately lobed, abrupt acuminate at apex; upper surface densely and finely granular on magnification; lower surface drying semiglossy, sparsely granular in the areoles; anterior lobe 29.2-37.5 cm long, 15.2-24.0 cm wide; posterior lobe 3.2-6.6 cm long, 4.8-7.5 cm wide, parabolic to hippocrepiform, rounded at apex; basal veins 5-6 pairs, 1st-2nd pair free to base, 3rcl fused 1.2-1.8 cm, 4th fused 2.0-2.2 cm, 5th-6th fused 2.5-2.8 cm; posterior rib naked 1.3-2.1 cm; midrib narrowly rounded to bluntly acute, above, thicker than broad to weakly round-raised below, very minutely granular above and below; primary lateral veins 6-8 on each side arising at 48°-52°, narrowly rounded, somewhat glossy , thicker than broad above and below; tertiary veins drying much lighter than the blade; collective veins  arising from 1st-2nd basal vein, 1.0-3.0 mm from margin. INFLORESCENCE erect; peduncle 9.6-20.2 cm long, 2-4 mm wide; spathe 8.3-9.6 cm long, .8-1.2 cm wide, 9 times longer than broad, oblong, narrowly rounded at apex, minutely ribbed, pale-lineate, light green, spreading, drying greenish gray; spadix 7.3-11.8 cm long, drying .5-1.2 diam., white, 11 times longer than broad; flowers 5 visible per spiral, 1.0-1.2 cm long and wide, 4-lobed, tepals minutely granular, bicolorous, lateral tepals .4-.6 mm wide, inner margins rounded, outer margins 3-sided.