Anthurium banderasense [Croat ]

Anthurium banderasense

General description:

Terrestrial; internodes very short; cataphylls not seen. LEAVES 130.3 cm long with petioles 44.3 cm long, 0.8 cm diam., drying light tan, sharply C-shaped adaxially with margins acutely narrow and curled under, flattened adaxially with a medial rib, drying yellowish with 5 prominent ribs abaxially; geniculum 1 cm long, about as broad as shaft; blade 86 cm long, 16.3 cm wide, widest near the middle of the blade, lanceolate, narrowly acuminate at apex, narrowly attenuate at base, 5 times longer than wide, 1.9 times longer than petiole; midrib drying convex, minutely many-ridged, drying sharply acute, finely ribbed and conspicuously granular-pustular below: primary lateral veins 19 pairs, arising at a 60 - 70° angle from the midrib, drying weakly and narrowly rounded, slightly lighter than blade on both surfaces; basal veins 1 pair margining out in a few cm; collective veins arising from one of the lower primary lateral veins, running 3 - 8 mm from the blade margin to the apex; upper surface drying medium dark yellowish green, semiglossy, minutely granular; lower surface slightly lighter yellowish green, semiglossy, minutely-granular (including on the tertiary veins, both surfaces epunctate but abundantly pale-pustular. INFLORESCENCE 54.4 cm long with peduncle 41.9 cm long, 4 mm diam., drying coarsely ribbed, light tan; spathe 7 cm long, 1.9 cm wide, lanceolate, reflexed, drying slightly orangish brown; spadix post-anthesis sessile, 12.4 cm long, 1.8 cm diam., weakly tapered. INFRUCTESCENCE: berries magenta, emergent, 3 mm x 3 mm.

General Description Reference:

Thomas B. Croat, Ann Grace, Carla V. Kostelac, 2013. New Species of Anthurium (Araceae) from Andean Western South America

Distribution Reference:

Thomas B. Croat, Ann Grace, Carla V. Kostelac, 2013. New Species of Anthurium (Araceae) from Andean Western South America

Distribution:

Anthurium banderasense is endemic to the Cordillera del Co´ndor in Ecuador (but is undoubtedly to be found in the same region on the Peruvian side of the border) at 1,350 m in a Premontane wet forest life zone.

Taxonomy

Taxonomic Notes:

The species is a member of the section Pachyneurium characterized by its terrestrial habit, short internodes, moderately elongated pale yellow-brown-drying, sharply C-shaped petioles which have margins that dry sharply and narrowly acute, are flattened adaxially with a medial rib and abaxially several ribbed, with a short geniculum, yellowish green-drying blades with prominently pale-pustular surfaces, weakly raised primary lateral veins and collective veins that arise from one of the lower primary lateral veins as well as by the green reflexed spathe, and weakly tapered spadix with magenta berries. In the Lucid Anthurium Key A. banderasense tracks to A. bonplandii G. S. Bunting which is distinguished by having more ovate blades (3 - 4 times longer than broad), shorter petioles (20 - 40 cm), and a prominent stipe; A. glaucospadix Croat, from the Cordillera Occidental in Colombia, differs by its more ovate blades (2.5 - 3.5 times longer than wide), long stipe (2 - 5 cm) and shorter petioles, 4 - 26 cm); A. holm-nielsenii Croat, differing by having more primary lateral veins (up to 20) which arise from the midrib at a 45 - 60° angle, a stipitate spadix and orange berries; A. latissimum Engl., differing by its more ovate blades (2 - 3 times longer than wide), fewer primary lateral veins (10 - 12), a stipitate spadix and shorter peduncles (20 - 35 cm long).

Taxonomic Notes Reference:

Thomas B. Croat, Ann Grace, Carla V. Kostelac, 2013. New Species of Anthurium (Araceae) from Andean Western South America

CATE Araceae

Araceae

Anthurium banderasense Croat

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