Araceae
Anthurium formosum Schott
SUMMARY
Epiphytic or often terrestrial; stems often to 1 m long; roots thick, directed downward; cataphylls coriaceous, narrowly rounded at apex, with subapical apiculum, drying tan, persisting intact. LEAVES erect-spreading; petioles 40-150 cm long, 0.6-1 cm diam., subterete, weakly flattened or weakly sulcate adaxially; geniculum 2-2.2 cm long, tinged pinkish; blades ovate, 30-80 cm long, 20-52 cm wide, acuminate and turning down at apex, deeply lobed at base; anterior lobe 31-54 cm long; the posterior lobes 13-20 cm long; sinus broadly hippocrepiform to spathulate; both surfaces glossy; midrib acutely raised above and below; primary lateral veins 7-9 per side, sunken in valleys above, raised below; interprimary veins sunken above, raised below; basal veins 7-8 pairs, the fourth to sixth coalesced 2.5-3 cm; the posterior rib naked, turned up; collective vein usually arising from one of the lowermost basal veins, frequently from the second or third basal vein, 2-4 mm from the margin. INFLORESCENCE erect-spreading; peduncle 21-47 cm long, stout; spathe subcoriaceous, ovate or oblong-elliptic, pale greenish white to pale violet, 12.5-24 cm long, 3-8.5 cm wide, cuspidate at apex, round at base, held close to spadix even in fruit, inserted at 45° angle on peduncle; spadix stipitate 12-15 mm in front, 2-3 mm in back, white to violet-purple, ± oblong to tapered to both ends, 5.5-14.5 cm long, 1.2-1.5 cm diam. at middle, 7-9 mm at base and apex; flowers rhombic to 4-lobed, 2.3-3 mm long, 3-3.8 mm wide, the sides jaggedly sigmoid; 9-15 flowers visible in the principal spiral, 10-20 flowers visible in the alternate spiral; tepals glossy, the lateral tepals 1-1.5 mm wide, the inner margins rounded to angulate; pistils early emergent; stigmas deep purple, ultimately brushlike; stamens emerging from base of spadix, the lateral stamens emerging throughout before alternate stamens emerge, held in a tight cluster over pistil; filaments pale lavender; anthers pale lavender to deep red-violet, sometimes white tinged with red-violet at margins; pollen white. INFRUCTESCENCE with spadix 18-32 cm long; berries dark reddish-violet to violet-purple, often reddish-orange at base, narrowly acute at apex, 10-12 mm long, 4-5 mm wide; seeds 2, 7-8.4 mm long, 3-3.5 mm wide.