The paper is based on the materials collected from different parts of the country during field trips made from 2000-2005, which are now preserved in the Bangladesh National Herbarium (DACB). The specimens have been identified with the help of Engler (1915), Nicolson (1969, 1987), Noltie (1994), Mayo (1985) and Rao and Verma (1976). Correct names with important synonyms, description, specimen citation, notes on ecology, geographical distribution within and outside the country and illustrations of each species have been prepared based on the fresh specimens. An evergreen herb. Stem erect, becoming decumbent in older and larger specimens, 20-150 cm tall, 0.5-6.0 cm thick. Internodes 0.4-2.5 cm long. Petioles 6-25 cm long, sheathing for more than half its length, margins of sheath membranous but occasionally scarious. Leaf-blades usually narrowly oblong-elliptic to lanceolate, 10-30 × 2.5-12 cm, slightly asymmetric, shortly acuminate, base oblique to rounded; pale variegation along the primary lateral veins; venation differentiated into 4-7 primary lateral veins diverging from the midrib at 20-45-70; texture coriaceous. Peduncle solitary to 3 together, 4.5-20 cm long. Spathe 3-7 × 2.8-5 cm, light green, shorter than petiole, decurrent for 0.4-1.2 cm. Spadix stipitate for 0.4-1.0 cm, completely free from spathe, 2-7 cm long, usually at least 1 cm short of spathe apex but occasionally equaling it; pistillate portion 0.3-1.0 cm long, pistils few, 10-18; staminate portion 1.5-6 × 0.4-0.6 cm. Ovary ovoid or subglobose, 1-locular, ovule 1, anatropous, placenta basal, stylar region short, thick, stigma broad, discoid, concave centrally. Fruits turning yellow, then bright red, ellipsoidal to obovoid, 1.5-2 × 0.4-1.5 cm. Flowering and fruiting time: June to September. Stem erect, 1-3 cm thick, internodes 2 cm long. Petiole 18-25 cm long, sheaths with membranous margins, 11-20 cm long. Leaf-blade narrowly oblong, narrowly elliptic or oblanceolate, 22–35 cm long, 7.5-15 cm wide, base obtuse to subrounded, apex acuminate, often apiculate, variegation none, venation undifferentiated to weakly differentiated into 5-8 primary lateral veins diverging from the midrib, texture coriaceous. Peduncles 2-5 together, rarely solitary, 10-15 cm long. Spathe green, turning yellow with age, not differentiated into a tube and blade, 4-7 cm long. Stipe 0.7-1.5 cm long. Spadix shorter than spathe, pistillate portion 0.2-0.8 cm long, pistils 10-20, the pistil with broad yellow stigma, the style distinctly contracted; staminate portion 1.2-2.7 cm long, stamens free, filaments usually distinct. Ovary subglobose, 1-locular, ovule-1, anatropous, basal placentation, style short, stigma broad, discoid. Fruits becoming bright red, 1.5-3.0 cm long, 0.7-1.7 cm wide. Flowering and fruiting time: Apparently nonseasonal. Herbs. Rhizome 5-6 cm long, 3-4 cm in diam., stolons absent. Leaves several together; petiole reddish-green, 50-87 cm long, sheathing in the lower 1/3; blades oblongovate, 25-41 x 13.5-25 cm, sagittate with a broad sinus, tip acute, peltate, upper surface glossy green, lower surface pale green; primary lateral veins 6-7 pairs, pale green. Inflorescences produced in both juvenile and adult plants, solitary or paired; peduncles almost completely enclosed in sheath of subtending leaf, when paired the sequence perpendicular to the circumference of the stem with the younger one further out , 30-40 cm long. Spathe 18-23.5 cm long, tube 3-5 cm long, light green, limb narrowly oblongcymbiform, 15-18.5 cm long, 7.7 cm wide, reflexed. Spadix shorter than spathe, 9-11 cm long; female zone 3.0-3.8 cm long, 1 cm diam.; pistils numerous; ovaries globose, green, incompletely 3-5 locular with parietal placentation and numerous oval-shaped ovules; stigma sessile, discoid, whitish, 1mm diam.; sterile interstice 3 cm long, yellow; male zone 3.0 - 4.2 cm long, 0.5 cm diam., tip rounded, synandria ivory, irregularly rhombohexagonal, 8-10 androus, 1mm diam., yellow; appendix absent. Flowering and fruiting time: June to July.