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Terrestrial or often epilithic; stem 1 cm diam.
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Terrestrial or often epilithic; stem 1 cm diam.; roots descending, greenish, smooth to velutinous, elongate, blunt, 2-4 mm diam.; cataphylls subcoriaceous, lanceolate, 6-10 cm long, narrowly rounded to obtuse at apex with a subapical apiculum, dark green, drying dark tan, persisting semi-intact, then as linear fibers, eventually deciduous. LEAVES erect to spreading, occasionally pendent; petioles (2)6-22 cm long, (3)6-9 mm diam., sharply D-shaped to subquadrangular, flattened to broadly sulcate with the margins sharply raised adaxially, sharply 3-ribbed abaxially, surface sparsely pale speckled; geniculum slightly thicker than petiole, 1.4-2.5 cm long; blades subcoriaceous, elliptic to oblanceolate to broadly oblanceolate, gradually acuminate at apex (the acumen apiculate), attenuate to narrowly acute at base, (11)25-62 cm long, (3.5)5.5-27 cm wide, broadest at or above the middle, the margins weakly undulate; both surfaces semiglossy to matte, medium green above, paler below, drying greenish to greenish brown, matte; midrib flat at base, becoming acutely raised toward the apex above, sharply 2-ribbed at base, becoming sharply raised toward the apex below, paler than surface; primary lateral veins 8-12 per side, departing midrib at 40-45° angle, broadly arcuate to straight, acutely raised above, convexly raised below; tertiary veins weakly raised to sunken above, raised and darker than surface below; reticulate veins weakly visible above, obscure below; collective vein arising from about the middle of the blade or near the apex, sunken above, raised below, equally as prominent as primary lateral veins, 3-5 mm from margin. INFLORESCENCES erect to erect-spreading peduncle (17)24-53 cm long, 3-5 mm diam., 3-6 x as long as petiole, angular; spathe reflexed to reflexed-spreading, subcoriaceous, green, linear-lanceolate, 5-12 cm long, 0.6-1.1 cm wide, broadest just above the base, acuminate at apex (the acumen inrolled); spadix green to white to yellow, sometimes tinged with red-violet, sessile, long-tapered, rarely stipitate, to 2 cm, occasionally cylindroid, (4)7-16 cm long, 6-8 mm diam. near base, 3-4 mm diam. near apex; flowers square to rhombic, 1.9-3.4 mm long, 1.7-2.7 mm wide, the sides smoothly to weakly and jaggedly sigmoid; 5-6 flowers visible in principal spiral, 5-7 in alternate spiral; lateral tepals (0.5)l-1.7 mm wide, the inner margins straight, the outer margins 2-3-sided; stigma ellipsoid, 0.3-0.5 mm long; stamens held above tepals in a circle around the pistil, persisting; anthers 0.4-0.5 mm long, 0.6-0.8 mm wide; thecae oblong-ovoid, divaricate. INFRUCTESCENCE 1cm diam., bearing berries in the lower part of the spadix; berries greenish yellow, obovoid to globose, rounded to somewhat mammilliform at apex, 3.8-4.7 mm long, 3.8-4 mm diam.; seeds 2 per berry, yellow-orange, oblong-ovoid, flattened dorsally, 2.9-3.5 mm long, 1.8-2.3 mm diam., 1.5-2 mm thick.
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Anthurium acutifolium var. herrerae
Anthurium acutifolium var. herrerae CroatMarktplatz
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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.
Terrestrial or rarely epiphytic; roots numerous, thick, velutinous; cataphylls persisting as fibrous network, subcoriaceous, 6-10 cm long, acuminate at apex (the acumen apiculate), drying dark tan (B & K Yellow 5/5). LEAVES erect to spreading; petioles (2)6-22 cm long, (3)6-9 mm diam., flattened to broadly sulcate adaxially, sharply 3-ribbed abaxially; blades epunctate, ob-lanceolate to broadly oblanceolate, gradually acuminate at apex, long attenuate at base, (11)25-62 cm long, (3.5)5.5-27 cm wide, broadest at middle; midrib raised above and below, paler than surface, sometimes yellow; primary lateral veins 8-12 per side, departing the midrib at 40°-45° angle; collective vein arising from the third to fifth primary lateral vein, 3-5 mm from the margin. INFLORESCENCE erect, usually shorter than leaves; peduncle 24-53 cm long, 3-5 mm diam., much longer than petioles; spathe green, linear-lanceolate, 5-12 cm long, 0.7-1.1 cm wide; spadix sessile, green to white, sometimes tinged with red-violet, 7-16 cm long, 6-8 mm diam. at base, 3-4 mm diam. at apex; flowers square to rhombic, ca. 2 mm in both directions, the sides ± straight; 5-6 flowers visible in the principal spiral, 5-7 flowers visible in the alternate spiral; lateral tepals 0.5 mm wide, the inner margins turned up. INFRUCTESCENCE with greenish-yellow, obovoid berries often not developing in apical one quarter to one half of spadix.
Tropical moist, premontane wet, and tropical wet forest life zones.
Dry area of tropical moist forest.
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Costa Rica, Panama
This species is known from Costa Rica and Panama principally on the Pacific slope. The species has been collected in Panama on the Burica Peninsula in Chiriqui Province. There are two varieties. The typical variety occurs throughout the range of the species, whereas the variety herrerae is restricted to drier parts of tropical moist forest.
Endemic to Costa Rica, known only from the type collection.
Costa Rica, Panama, Colombia and Ecuador.