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Araceae
Anthurium guatemalense Croat, Cast.Mont & Vannini
SUMMARY
Epipetric, growing on steep cliffs; internodes short, 2.5-3.5 cm diam; cataphylls 4-9 cm long, persisting semi-intact, thin, light brown, becoming pale-fibrous at base; petioles subterete, 9-21 cm long, 9 mm wide, 8 mm thick, narrowly and obtusely sulcate, dark green and weakly glossy, drying pale grayish yellow-green, deeply and sharply sulcate adaxially, sometimes with an obtuse medial rib adaxially, weakly and irregularly ribbed abaxially; geniculum less than 1 cm long, only slightly thicker than the petiole; blades narrowly oblanceolate 43-100 cm long, 5.2-20 cm wide, 4.2-10.4 times longer than wide, 3.3-5 times longer than petiole, narrowly acuminate at apex with a short apiculum ca. 5 mm long, acute to abruptly ending at base, moderately coriaceous, weakly glossy, moderately bicolorous, drying medium yellow-green to grayish green and matte above, paler, yellow-green and matte below; midrib bluntly angular and concolorous above, narrowly rounded, thicker and slightly pale below, drying narrowly acute and slightly paler above, thicker than broad and irregularly narrowly ribbed, and paler below; primary lateral veins 20-27, scarcely visible and concolorous, scarcely distinguished from the interprimary veins above (those in the lower 1/3 of the blade especially weak), weakly raised and concolorous below, drying narrowly raised and slightly paler than surface; tertiary veins darker than surface and moderately distinct below, drying weakly raised; collective veins arising from near the base, 1-7 mm from the margin; blade margin drying paler and weakly down-turned. INFLORESCENCE erect; peduncle 11-17 cm long, 6.5 x 7 mm diam., drying dark green, matte; 4.5-8 cm long, 0.8-1.7 cm wide, green, brown, becoming reflexed, withered, persistent; spadix 5.5-11.5 cm long, (3.5-)7.4-14 times longer than wide, drying 6-10 mm diam., green at anthesis and remaining more or less green throughout its development, sometimes becoming gray in age, matte, post-anthesis; flowers 5-7 per spiral, 1.8-2 mm long, 1.8 mm wide, becoming rounded post-anthesis; tepals 1.6 mm wide, the outer margins 2-sided, inner margin broadly rounded, becoming cupuliform in age; pistils green post-anthesis; stamens emerging immediately above the tepals, the lateral stamens emerging only 2-3 spirals head of the 3rd and 4th stamens; anthers 0.4-0.5 mm long, 0.5-0.6 mm wide, slightly divaricate; thecae narrowly ovoid. INFRUCTESCENCE erect; spadix 13 cm long, 3 cm diam. with berries not emergent, 4 cm diam. with berries exserted; berries pale green, dark green at apex, obovoid, 7-8 mm long, 5-6 mm diam; seeds dark brown, 5 mm long, 2.5 mm diam, semiglossy.