Araceae
Anthurium brevispadix Croat
SUMMARY
Epiphyte; stems ca. 10 cm long, 7 mm diam.; leaf scars covered by persistent cataphylls; roots pale green, 2.5-3 mm diam.; cataphylls moderately thin, 2.3-2.7 cm long, acuminate at apex with a subapical apiculum 3 mm long, drying tan (B & K. Yellow 6/7.5), weathering to fine persistent fibers. LEAVES with petioles erect-spreading, terete, 4.5-8.5 cm long, ca. 1.5 mm diam.; geniculum 7-12 mm long, weakly sulcate; blades subcoriaceous, linear, gradually acuminate at apex (the acumen flat), acute to obtuse at base, (6-) 11-20 cm long, (1.5-)2-2.8 cm wide, broadest near middle, the margins markedly revolute; both surfaces semiglossy and glandular-punctate, the glands sparse and more or less obscure on upper surface, the epidermis weakly papillate; lower surface slightly paler with the glands dense and reddish brown; midrib weakly raised at base above, flat midway, weakly sunken near apex; weakly raised below, broader at base, narrow and acute toward apex; primary lateral veins 5-7 per side, departing midrib at 30-35° angle, obscure above, flat, darker than surface below; interprimary veins scarcely visible below; collective vein arising from the base, not apparent above, slightly darker than surface below, 1-3 mm from margin. INFLORESCENCE erect, shorter than leaves; peduncle 10-13.5 cm long, ca. 2 mm diam., terete, 2-3 times longer than petioles; spathe thin, pale green, narrowly ovate, 1.4-2 cm long; spadix pale green (B & K Yellow-green 6/10), only slightly tapered, rounded at apex, 1.6-2.5 cm long, 3-3.5 mm diam. midway; flowers rhombic, 2.2-2.4 mm long, 1.8-2 mm wide, the sides straight to sigmoid, 3-4 flowers visible in the principal spiral, 6-7 flowers visible in the alternate spiral; tepals matte, minutely papillate; lateral tepals 1.1-1.3 mm wide, the inner margin broadly rounded to more or less straight; pistil slightly raised, green; stigma oblong-elliptic, ca. 0.3 mm long, weakly exserted, brush-like; stamens emerging in a prompt complete sequence from the base, leading spiral preceding the completed flowers by ca. 6 spirals, the first lateral to two-thirds the length of the spadix (preceding second lateral by 3 spirals) while the completed spirals are present in the lower one-fourth of the spadix; anthers white, ca. 0.2 mm long, 0.4 mm wide; thecae ovate, slightly divaricate; pollen white. INFRUCTESCENCE not seen.