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Araceae
Stenospermation monsalvae Croat & D.C.Bay
Nomenclature
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Family: AraceaeGenus: Stenospermation
SUMMARY
Usually epiphytic, occasionally terrestrial; stem appressed-climbing, or scandent; internodes short, 1–2 cm x 7–17 mm, semiglossy, yellow-green becoming brown, drying dark brown; cataphylls 3.5–11.5 cm, apiculate at apex, drying dark brown, deciduous. LEAVES erect to spreading; petioles (5.8)8–15.5 cm x 1–3 mm (dry), terete, sharply to narrowly sulcate; sheath 4–10.8 cm, 0.4–0.7(0.9) times as long as petiole, one side acute and the other rounded at apex, medium green with scarious margin, drying dark brown with pale margin; blades lanceolate to elliptic, subcoriaceous, abruptly acuminate at apex (acumen downturned), usually attenuate, sometimes cuneate, or rarely rounded at base, (9)12.5–23.5(28.3) x 3–5(7) cm, 3.2–5.9(6.7) times longer than wide, 1.2–1.8(2.3) times longer than petiole, broadest near middle, upper surface semiglossy to glossy, dark green, weakly bicolorous, drying dull, reddish brown to olive-brown, lower surface drying semiglossy and paler than above; midrib narrowly sunken, sometimes weakly discolored along margin above, convex and paler below, drying slightly darker than surface below; primary lateral veins numerous, obscure, departing midrib at 25o–30o angles, drying barely raised below or obscure on both sides. INFLORESCENCE 1 per axil, spreading to pendulous; peduncle 20–36.5 cm x 1–3 mm (dry), cernuous, drying medium to dark or reddish brown; spathe 6.3–13.8 cm, green, abruptly acuminate to long-tapered; spadix stipitate 5–12 mm, cylindrical, 3.7–9.5(13.5) cm x 6–8 mm, white becoming yellow at anthesis. Flowers hexagonal, surface of ovary with numerous short white raphides; stigma ovate, 0.5–0.7 mm diam.; stamens with filaments to 1.8 mm; thecae oblong. INFRUCTESCENCE 5–9 x 1–1.5 cm (dry); berries orange, surface of ovary drying pale white with numerous dark red punctations (under 106 magnification); seeds oblong to clavate, 2.1–2.3 mm.