Araceae
Anthurium huixtlense Matuda
SUMMARY
Terrestrial or epiphytic; stems to 14 cm long, 3 cm diam.; leaf scars 2-3 cm wide, obscured by cataphylls at upper nodes; roots few, ca. 5 mm diam., descending; cataphylls coriaceous, 5-23 cm long, long-acuminate al apex (the acumen apiculate ca. 1-2 mm), drying dark tan (B & K Yellow 5/2.5), persisting intact. LEAVES erect-spreading; petioles 15-70 cm long, 6-9 mm diam., terete; geniculum 1-5 cm long; blades subcoriaceous, ovate to broadly ovate, 17-70 cm long, 10.5-36 cm wide, broadest just below point of petiole attachment, short-acuminate at apex, deeply lobed at base; anterior lobe 14-50 cm long, the margins rounded; posterior lobes 5-20 cm long, flat to downturned, sometimes overlapping; the sinus triangular to hippocrepiform, sometimes ± rhombic in larger leaves when flattened; the upper surface matte to semiglossy with sparse, obscure raphide cells, the lower surface glossy; the midrib sharply raised above, diminished and sunken at apex, convexly raised below; basal veins 5-6 pairs, the third to fifth coalesced 2-2.5 cm, raised; the posterior rib naked, turned up on the outer margin; primary lateral veins 3-5 per side, prominulous above and below, departing midrib at 30°-40° angle, straight or arching near collective vein; lesser veins less conspicuous; collective vein arising from one of the lowermost primary lateral veins or from the first basal vein, flat to weakly raised, 4-10 mm from margin. INFLORESCENCE erect-spreading, shorter than leaves; peduncle 21-39 cm long, 4-7 mm diam., terete; spathe coriaceous, pale whitish-green (B & K Yellow-green 9/10), oblong-lanceolate, 4.5-15 cm long, 2.7-4.5 cm wide, broadest at middle, abruptly long-acuminate at apex, obtuse to rounded al base; the stipe 12 mm long in front, 2.5 mm long in back, pale green; spadix reddish-violet to lavender (B & K Red 8/ 5, red-purple 5/2.5 to purple 6/5), rarely white, 4.2-20 cm long, 6-10 mm diam. at base, 5-6 mm diam. at apex; the flowers 4-lobed, 2.3-3.1 mm long, 2.5-3.5 mm wide, the sides jaggedly sigmoid; 5-8 flowers visible in the principal spiral, 5-9 flowers visible in the alternate spiral; tepals semiglossy, with white inconspicuous punctations, smooth to very minutely papillate, lateral tepals 1.5-2.2 mm wide, the inner margin straight; pistil emergent, white, glossy; stigma 0.3-0.6 mm long, linear; stamens emerging moderately rapidly from the base, lateral stamens emerging to apex before alternates emerge at base, held in light cluster obscuring pistil; anthers white to pale yellow, 0.6-0.7 mm long, 0.6-0.8 mm wide; thecae oblong, scarcely or not at all divaricate; pollen white. INFRUCTESCENCE spreading to pendent in large plants; spathe deciduous; spadix ca. 21 cm long, 2 cm wide; berries orange, globose; seeds green, up to 3 per berry.