Araceae
Anthurium gustavii Regel
SUMMARY
Epiphytic, internodes short, 3.5-6 cm diam.; cataphylls with fibers forming semi-intact net-like reticulum; petioles 0.6-1.2 m long, brittle, medium green, weekly glossy, sharply flattened adaxially with a deep medial sulcus and acute, weakly spreading lateral margins with a pair of acute ribs on either side of the petiole toward the base, 4.5 cm diam. at the base, 2 cm diam. midway, 1.8 cm diam. at apex, geniculum 4-5 cm long, 2.2 cm diam. LEAVES erect-spreading; blades ovate-sagittate, 70-122 cm long, 55-86 cm wide, 1.4 times longer than wide, moderately coriaceous, medium green to dark green and matte above, moderately paler and semiglossy below, drying medium grayish green, matte to weakly glossy above, moderately glossy below; anterior lobe 48-89 cm long, margins broadly convex; posterior lobes 13-32 cm long, broadly rounded; sinus hippocrepiform, 15-25 cm deep, 10-26 cm wide; basal veins 7-8 pairs; the Ist- 3rd free to the base; midrib narrowly acute and paler above, convex with weak ribs extending down from primary lateral veins and paler below; primary lateral veins 9-10 pairs, acute and paler above, acute to bluntly acute and paler below; tertiary veins in part weakly raised below, drying moderately prominulous. INFLORESCENCE stiffly erect, peduncle 5-17 cm long, 2.0 cm diam.; spathe 28-31 cm long, when furled 2.5 cm diam. at base, 1.8 cm diam. midway, dark violet-purple and thickly ribbed outside, greenish white inside; spadix (13-)30-31 cm long, 2.5 cm diam. at base, 1.8 cm diam. midway, sessile, medium violet-purple, tapered to apex, erect. INFRUCTESCENCE 58 cm long, 5 cm diam. at base, 3.5 cm diam. midway, 1.5 cm diam. near apex; berries red, early emergent.