Araceae
Anthurium martianum K.Koch & Kolb
SUMMARY
Habit unknown; stem short; internodes to 2.5 cm diam.; roots spreading, rather short, tapered; cataphylls coriaceous, oblong-lanceolate, to 12 cm long, acuminate at apex, drying tan, persisting semi-intact. LEAVES erect-spreading; petioles (11)20-37 cm long, 5-12 mm diam., obtusely and narrowly sulcate adaxially, rounded abaxially; geniculum thicker than petiole, 3-4 cm long; blades (dried) subcoriaceous, oblong-elliptic to oblong-lanceolate, acuminate at apex (the acumen thick and inrolled), rounded to truncate (34)43-103 cm long, (6)20-38 cm wide, broadest slightly below or at the middle, the margins weakly undulate; upper surface semiglossy, dark green, paler below, both surfaces drying greenish gray to brownish; midrib raised above, slightly paler than surface, convexly raised below; primary lateral veins 18-24 per side, departing midrib at 55-85° angle, weakly curved to the collective vein, raised above and below; interprimary veins less conspicuously raised than the primary lateral veins; tertiary veins weakly raised above and below; collective vein arising from near the base, weakly raised above and below, 5-35 mm from margin. INFLORESCENCES (dried) with peduncle 25-60 cm long, 4-7 mm diam., ca. 0.7- 1 x as long as petiole, terete; spathe spreading to reflexed, subcoriaceous to coriaceous, green, lanceolate, 9.5-17 cm long, 1.5-4 cm wide, broadest near the base, inserted at 60° angle on peduncle, acuminate at apex (the acumen tightly inrolled, ca. 6 mm long), rounded at base; spadix maroon, subsessile, tapered, weakly curved, held at 150- 165(185)° angle from peduncle, 9-15 cm long, 7-11 mm diam. near base, 3-4 mm diam. near apex; flowers rhombic, 1.9-2.6 mm long, 1.6-2.1 mm wide, the sides mostly straight to smoothly or jaggedly sigmoid; 11-12 flowers visible in principal spiral, 12-18 in alternate spiral; tepals minutely and densely papillate when dried; lateral tepals 1.1-1.5 mm wide, the inner margins convex, weakly erose, the outer margins 2-3-sided; pistils ca. 0.8 mm long, 0.5 mm wide; stigma oblong, 0.4- 0.6 mm long; thecae oblong, slightly or not divaricate; pollen fading to cream-white. INFRUCTESCENCE not seen.