Taccarum crassispathum E.G.Gonç.

Seasonally dormant herbs, in well-drained soils or limestone outcrops. Stem tuberous, 2-4 X 4-6 cm, usually reddish at base in adult plants. Leaf solitary, petiole 52-75 cm long, 0.8-1.2 cm diam. at base, smooth, marbled or green with small grayish speckles and yellowish stripes, usually reddish at base in fertile specimens; blade bipinnatid, 33- 83 x 28-60 cm, ovate in outline, medium green and matte adaxially, lighter and usually semi-matte abaxially, midrib occasionally pinkish; anterior division 21-48 x 24-60 cm, primary lateral lobes 4-5 per side, lobes pinnatifid next to the base, occasionally entire close to the apex, oblanceolate to obovate in outline, 12-36.5 x 3.5-19 cm, acuminate apex, decurrent base, lobules triangular to elliptic, up to 11 x 3.5 cm; posterior divisions 12-35 x 27-33 cm, basioscopic lobes 3-4, usually entire or weakly undulate at margins, rarely pinnatifid, acroscopic lobes pinnatifid; basal rib naked for 0.3-5 cm. Inflorescence solitary, peduncle 11-25 X 0.4-0.6 cm, concolorous with petiole, usually reddish at base, spathe coriaceous to subcoriaceous, 6-22 x 5-9 cm, not constricted, pinkish with greenish or grayish stripes, acuminate at apex; spadlx stipitate, stipe 0.5 X 0.7 cm, 6.5-13 cm long; fertile male portion 3.6- 7 x 1-1.5 cm; sterile male portion 0.6-2 x 1-1.7 cm; female portion 2.6-5 X 1-2.8 cm. Male flowers in synandrium 4-6-andric, 2-5 mm long, filaments short and completely fused, 1-2 X 0.8-1 mm thecae oblong, 2 X 0.8 mm' pale yellow, connective poorly developed, rounded, pinkish to cream, sometimes purplish speckled, 1-1.5 X 3-5 mm; synandrodes 3-4 x 5-6 mm, whitish, some of them with vestigial thecae; female flowers surrounded by 5-6 whitish clavate staminodes, that are as long as the pistils or even longer, 3-5 x 1 mm; pistils 3-5 mm long, stigma subglobose, bright yellow, 3-6 lobed, 1-2 mm diam., style as long as the ovary, 1.5-2 mm, ovary cream with reddish speckles, 1.2-2 x 1-2 mm, 3-6-locular, locules uniovulate, ovule anatropous. Infructescence with spathe persisting intact, tightly closed to the apex; berry juicy, strongly furrowed, 4-5 x 7-10 mm, yellowish to whitish with red speckles; seeds ovoid 3-4.5 x 1-4 cm, also with red speckles, endosperm copious.