Arisaema peninsulae (Araceae)
Tuber depressed globose, 1.5–5.5cm in diam. Cataphylls 3, brownish with purple spots, 3–10cm. Leaves 2; petiole 35–93cm; pseudostem (sheathing part) 29–77cm; leaf blade pedate; leaflets 7–17(–23); rachis well developed between terminal and lateral ones, and between lateral ones; leaflets narrowly elliptic, obovate-lanceolate, or ovate-oblong, base cuneate, margin entire or serrate, apex acuminate; central leaflet with petiolule 1–4cm, blade 9–18 × 3.5–9cm, gradually smaller outward; lateral leaflets remote from central one for 1–4cm, shortly petiolulate or sessile, ca. as large as central one; outer lateral leaflets sessile and much smaller than central leaflet. Peduncle erect, 30–80cm. Spathe usually green with white stripes, or purplish to dark purple with whitish stripes; tube 5–8 × ca. 1.5cm, throat obliquely truncate, scarcely recurved; limb incurved, usually green, or dark purple, oblong, 5–6 × 4–5cm, apex acuminate. Spadix unisexual; female zone 1.5–3cm × 5–7mm; ovaries dense, narrowly ovoid; style short; stigma disciform; male zone 1–1.5cm; synandria dense, sessile; anthers 2 or 3; thecae globose, dehiscing by apical pores. Appendix erect, cylindric, 3.5–4cm × 3–6mm, base truncate and stipitate, apex obtuse; stipe 4–5mm. Berries reddish yellow, ovoid-globose, ca. 8 × 7mm. Seeds 2 or 3, yellow-brown, ca. 4mm in diam., rugose.
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.
Forests.