Anthurium parasiticum (Vell.) Stellfeld

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

Phenology

Blooming in January.

Habitat

On trees and rocks.

General Description

Stem thick, assurgent very high (to 3 m); cataphylls herbaceous, pale greenish, then brown. LEAVES: Petiole subterete, very mildly sulcate adaxially, 1-6 dm [10 - 16 cm] long, 1.5 cm diam.; geniculum 1 cm long or longer; blades thick, coriaceous, deep green, shiny above; longer than petiole or almost equalling it, elliptic-oblong, gradually narrowed toward the apex and base, the lowermost acute at the base, 3-5 dm [30 - 50 cm] long, 1.4-2 dm [14 - 20 cm] wide at the middle; midrib rounded below and above; primary lateral veins 16-18 pairs, together with secondary veins parallel, spreading at about a 90 degree angle, (secondary veins interspersed between primary veins), joined in a collective vein well away from the margin. INFLORESCENCE: Peduncle shorter than leaf, sharply angled adaxially or adaxially and abaxially, 3-5 dm [30 - 50 cm] long; spathe lanceolate, linear-cuspidate, short-decurrent at the base, greenish, 7.5 cm long, 1-1.25 cm wide, (acumen 1.5 - 2 cm long); spadix very short-stipitate, longer by half or twice as long as spathe, violetish. INFRUCTESCENCE: Berries obovoid-subglobose, green at the top, yellow green toward the base; seeds obovoid, compressed, yellow.

Distribution

Brazil. Province Rio de Janeiro; Tijuca.

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

General Description

Stem climbing, internodes short. LEAVES: Petiole ca. 7-10 cm long, 4-5 mm thick, subterete, flat adaxially or narrowly canaliculate, geniculum fairly long, ca. 1 cm long. Blade subcoriaceous, oblong-elliptic, subequally narrowed at both ends, cuneate at base, apiculate at apex, 25-30 cm long, 9-13 cm wide at middle, primary lateral veins arching and patent at angle of 60-70º, above slightly engraved [or embedded] into surface, joined into a collective vein ca. 1 cm from margin, a little prominent on lower surface. INFLORESCENCE: Peduncle 25-30 cm long. Spathe linear, shortly decurrent, ca. 4.5 cm long, with 3-4 mm long acumen. Spadix ca. 9 cm long, 5 mm thick, gently narrowing upwards. Tepals ca. 1.5 mm long, 2.5 mm wide.

Distribution

South Brazilian Province.

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

General Description

Stem assurgent, thick, ramose. LEAVES: Petiole semiterete or keeled below, longer than blade or equally long; geniculum slightly long, semiterete or cana1icuIate-hollowed out in a curve; blades deep green above, shining, paler below, elliptic-oblong, a little narrowed toward the base, obtuse or even emarginate or more narrowed, repent at the bottom or abruptly compressed, narrowed toward the apex in a more or less arcuate line, short-acuminate-cuspidate at apex; primary 1ateral veins 12-18 pairs, together with secondary veins just as many, rare1y two each [or paired] or three each interspersed, spreading openly at about a 90 degree angle, joined in a collective vein slightly broadly away from the margin. INFLORESCENCE: Peduncle terete, 4-5 dm [40 - 50 cm] long; spathe linear-lanceolate, cuspidate at the apex, clasping at the base, 8-10 cm long, 1 cm wide; acumen 5-8 mm long; spadix 1 1/2 times longer than spathe, subsessile, 1.5-1.8 dm [15 - 18 cm] long, 4-5 mm diam. at the bottom. INFRUCTESCENCE: Berries short-obovoid [or weakly obovoid?], green, 2.5-3 mm in diameter.

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

Diagnostic

The plant is distinguished in particular by the broadly truncate leaf blade bases.

General Description

Stem thick, long-repent or eventually becoming a climber, internodes short, cataphylls lanceolate, acuminate, later decomposing into fibres. LEAVES: Petiole terete, slender, canaliculate adaxially, 7 - 10 cm long, 2 - 3.5 mm thick, geniculum short, not thickened, flattened adaxially. Leaf blade rigid, subcoriaceous, narrowly lanceolate or oblong-lanceolate, acuminate at the apex, broadly obtuse at the base, 20 - 30 cm long, 5 - 7.5 cm wide, primary lateral veins numerous, arising at nearly 90 deg. From the thickish midrib later somewhat ascending, distinctly prominent on both surfaces, near the margin joined into a slender collective vein 3 - 5 mm distant from the margin. INFLORESCENCES: Peduncle terete, slender, 8 - 10 cm long, 2 mm thick. Spathe linear-lanceolate, acuminate at the apex, 3 - 4 cm long, 7 - 8 mm wide. Spadix sessile, elongate, submyosuroid, narrowly cylindroid, rounded-obtuse at the apex, 7 - 10 cm long, basally 6 - 8 mm thick, narrowing upwards. Tepals narrowly oblong, 2 - 3 times longer than wide. Ovary ovoid, narrowing towards the apex.

Distribution

Brazil (Rio de Janeiro).