Bognera Mayo & Nicolson

Evergreen herb with creeping rhizome; leaves usually up to four, cataphylls marcescent and persistent; petiole long, slightly pilose, weakly geniculate at apex, sheath short; leaf blade ovate, primary lateral veins parallel-pinnate, 12-14 on each side of the strong middle vein and secondary laterals also pinnate between the primary veins, third order veins clearly reticulate, veins on upper side glabrous but underneath minutely pilose along veins, marginal collective vein inconspicuous. Peduncle shorter than petioles, subtended by cataphylls. Spathe convolute in lower two thirds, unconstricted, persistent. Spadix equal or slightly longer than spathe, fertile to apex, female zone laxly flowered and completely adnate to spathe, separated from male zone by very sparsely flowered sterile zone, male zone densely flowered. Flowers unisexual, naked. Female flowers in somewhat distant spirals, without staminodes, ovary depressed globose, one-locular, ovule one, anatropous, funicle short, placenta basal; stigma sessile, discoid to sub-hemispherical, papillose, as broad as ovary. Sterile flowers consisting usually of four staminodes, those of the lower flowers more-or-less free and roundish, those of the upper flowers nearly completely connate and irregularly formed. Male flowers 3 to 4-androus, the stamens connate into a synandrium, synandrium irregularly rhombic, truncate, flat to somewhat domed, thecae lateral, dehiscing apically by a very broad slit; pollen inaperturate, large, spherical to ellipsoid or ovoid, exine smooth (psilate).