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FOC | Family List | FOC Vol. 23 | Araceae | Pinellia

4. Pinellia peltata C. Pei, Contr. Biol. Lab. Sci. Soc. China, Bot. Ser. 10: 1. 1935.

盾叶半夏 dun ye ban xia

Tuber subglobose, 1-2.5 cm in diam. Leaves 2 or 3; petiole 27-33 cm; leaf blade deep green, peltate, ovate or oblong, 10-17 × 5.5-12 cm, base deeply cordate, apex shortly acuminate; primary lateral veins (5 or)6-8 per side. Inflorescence including peduncle 7-15 cm, shorter than petioles; peduncle 5-8 cm. Spathe yellowish green, constricted, 4-5 cm; tube obovoid, ca. 8 mm; limb opening, 3-4 × 0.5-0.8 cm, apex obtuse to acute. Spadix 11-13 cm; female zone ca. 0.8 cm, adnate to spathe; female flowers densely arranged; pistil obovoid, 2.5-3 × 1.2-1.5 mm; stigma sessile, very small; sterile zone between female and male zones ca. 3.5 mm; male zone ca. 6 mm; thecae elongate; appendix ca. 10 cm. Berries pale green to whitish, ovoid, acute at apex. Seeds globose. Fl. May-Jun, fr. Aug-Sep. 2n = 78*.

● Forests, grassy slopes, on rocks or between rocks. Fujian, Zhejiang.

Pinellia peltata differs from all of the other species of the genus by its subglobose tuber and its peltate leaves, which are ovate to oblong-ovate and shortly acuminate at apex.


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