Araceae
Anthurium yamayakatense Croat
SUMMARY
Epiphytic; internodes short, drying 1.2 cm diam.; cataphylls 7.5-16 cm long, drying brown, lanceolate to almost linear, persisting at upper internodes as a reticulum of fine, pale tan fibers. LEAVES: Petioles 28.5 cm long, drying 5 mm diam., yellowish brown, darkened near base; geniculum shaped like petiole, concolorous with petiole, 2 cm long, drying 4 mm wide; blades oblong-elliptic, slightly inequilateral, one side up to 5 mm wider, narrowly acuminate and apiculate at apex, narrowly attenuate at base, 40.5 × 11 cm, 3.7 times longer than wide, drying light grayish brown, weakly glossy, eglandular above, darker brown, semi-glossy, somewhat inconspicuously glandular-punctate below; midrib narrowly convex, concolorous; primary lateral veins 9-11 per side, 0.8-2 cm apart, sometimes arising at an acute angle, then spreading to a 25-40° angle, prominently loop connected, concolorous, prominulous; collective veins arising from base, equally prominent as primary veins, 6-11 cm from margin. INFLORESCENCE with peduncle 38.5 cm long, drying 6 cm wide (flattened), brown slightly tinged with red; spathe reflexed-spreading, linear, 12 cm × 11 mm, 0.31 times the length of peduncle, narrowly acuminate and aristate (to 7 mm) at apex; spadix cylindrical, abruptly tapering near apex, erect at base, curving to a 90° angle toward spathe, 17 cm × 6 mm. Flowers 1.5 × 1.7 mm, 7-8 visible per spiral; lateral tepals 0.8 mm wide, outside margins 2-sided.