You are here
Araceae
Anthurium acutifolium var. herrerae Croat
SUMMARY
Based on dried material only. Terrestrial; stem short; internodes short, 1-1.5 cm diam.; roots moderately dense, whitish, woolly-pubescent, to 10 cm long, 5 mm diam.; cataphylls narrowly long-acuminate, 5-6.5 cm long, drying brownish, persisting semi-intact, eventually fibrous at least basally. LEAVES ± erect; petioles 7-9 cm long, ca. 3 mm diam., ± C-shaped, sulcate adaxially, rounded abaxially; geniculum slightly paler than petiole, less than 1 cm long; blades subcoriaceous, drying moderately thin, oblong-elliptic to elliptic, gradually long-acuminate at apex, attenuate at base, 21-33.5 cm long, 7.8-13.5 cm wide, broadest at middle; both surfaces semiglossy; midrib drying sharply acute above, several-ribbed and paler than surface below; primary lateral veins (9)l0-14 per side, departing midrib at 50-55° angle (sometimes to 75° angle nearer the base), moderately straight to the margin, then arcuate toward apex; tertiary veins obscurely visible, some weakly raised below; collected vein usually arising from about the middle of the blade, less commonly from the lower third, flat above, weakly raised below, 3-10 mm from margin. INFLORESCENCES erect; peduncle 11.5-28.5 cm long; spathe spreading to reflexed-spreading, green, linear-lanceolate, 3.8-5.8 cm long, 8-10 mm wide, broadest near base, inserted at 45-60° angle on peduncle, narrowly acuminate at apex, narrowly acute at base and weakly decurrent; spadix yellow, sessile, moderately tapered, 2.5-5 cm long, 3-5 mm diam. near base, 2-3 mm diam. near apex; flowers 4-lobed, 2.3-2.5 mm long, 2.2- 2.7 mm wide, the sides jaggedly sigmoid, 5-6 flowers visible in principal spiral, 9-1 0 flowers visible in alternate spiral; tepals semiglossy, lateral tepals 1.3-1.4 mm wide, ± inequilaterally shield-shaped, the inner margins broadly rounded, the outer margins 3-4-sided; pistils not emergent but pushing up against the tepals and inclining their margins upward; stigma 0.4 mm long, 0.3 mm wide, brushlike, with medial separation, weakly exserted; stamens emerging in a regular sequence, the laterals preceding the alternates by ca. 5 spirals, the 3rd stamen preceding the 4th by 3-4 spirals, held tightly aggregated over and obscuring pistil; anthers 0.4-0.5 mm long, 0.7-0.8 mm wide; thecae ovoid, moderately divaricate. INFRUCTESCENCE not seen.