Arisaema pingbianense (Araceae)
Plants monoecious and male. Rhizome prolonged and thin, 10–15 × 1–2cm, nodes swollen and globose. Cataphylls 3, pale green with violet spots, encircling peduncle. Leaves 2, arising at different seasons from different rhizome nodes; petiole green, cylindric, to 20 cm × 3–4mm, base shortly sheathing; leaf blade 3-foliolate, green, membranous; central leaflet with petiolule ca. 1.7cm, blade elliptic, 9–13.5 × 4–5.5cm, base cuneate; lateral leaflets with petiolule 3–6mm, blade obliquely ovate-lanceolate, base oblique, apex acuminate with acumen 1.5–2cm; lateral veins 5–7 on each side, collective vein 1–2mm from margin. Peduncle encircled by cataphyll, green, cylindric, shorter than petioles, ca. 15cm. Spathe tube subcylindric, 4–4.5 × ca. 1cm, throat margins spreading outward; limb green, with a rounded white area ca. 1.5cm in diam. at proximal part, oblong, 3.5–4cm, apex abruptly acuminate with a filiform tip. Spadix bisexual after sex change; proximal female zone congested with female flowers; ovary green, obovoid; distal male zone with sparse male flowers; synandria of 2 or 3 fused stamens; anthers brown to creamy white, globose, dehiscing by 2 apical pores; appendix nearly filiform, ca. 3cm, distal ca. 1cm covered with numerous filiform neuter flowers, brushlike; neuter flowers slightly recurved, brown or green, filiform, 2–3mm.
This material was reprinted with permission from the Missouri Botanical Garden Press, St. Louis, and Science Press, Beijing.
This material was reprinted with permission from the Missouri Botanical Garden Press, St. Louis, and Science Press, Beijing.
Secondary evergreen forests.