Arisaema tengtsungense (Araceae)
Plants dioecious. Tuber globose, 1–2cm in diam. Cataphylls 2, whitish pink, short, 2–4cm, membranous. Leaf solitary; petiole terete, 14–77cm, basal part forming pseudostem; leaf blade 3-foliolate or rarely quinate; leaflets sessile, pale green abaxially, green adaxially; central leaflet elliptic or ovate-elliptic, 5–14 × 3–7cm, base cuneate, apex acuminate; lateral leaflets obliquely ovate to ovate-lanceolate, 6–12 × 3–9cm, base cuneate at inner side, rounded at outer side. Peduncle shorter than petioles, 7–25cm, emerging from pseudostem. Spathe tube purple with white longitudinal lines, funnel-shaped, ca. 7 × 1.9cm, throat oblique, not auriculate, slightly recurved; limb dark purple with indistinct whitish lines, galeate, oblong in outline, 5–6.6 × 3–3.5cm, incurved, apex deeply 3-lobed; middle lobe smaller, lanceolate, ca. 5 × 2mm; lateral lobes oblong, ca. 1.5 × 1.3cm, apex rounded. Spadix unisexual; male zone cylindric, 1–1.5cm; synandria of 2 or 3 stamens; anthers sub-sessile, globose, dehiscing by horseshoe-shaped slit; appendix pendulous, flagelliform, 8–15cm, basal 2–3cm narrowly conic, 2–3.5mm in diam., base truncate and stipitate; stipe slender, 3–4mm. Female spadix unknown.
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.
Evergreen forests, Rhododendron thickets on mountain summits.