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FOC | Family List | FOC Vol. 5 | Urticaceae | Pilea

56. Pilea peltata Hance, Ann. Sci. Nat., Bot., sér. 5. 242. 1866.

盾叶冷水花 dun ye leng shui hua

Herbs perennial, rhizomatous, glabrous, dioecious or monoecious. Stems greenish, erect, often simple, 5-27 cm tall, succulent, internodes 1-4 cm. Leaves crowded on upper nodes; stipules persistent, triangular, ca. 1 mm, membranous; petiole subequal in length, 0.6-4.5 cm; leaf blade blue-green, suborbicular or subcordate, peltate, subequal in size, 1-4.5(-7) × 1-3.5(-4) cm, succulent, papery when dry, 3-veined, lateral veins 3 or 4 on each side, inconspicuous, external secondary veins 5-7, indistinct on both surfaces, often glanduar punctate at terminal veins, finely honeycombed abaxially, cystoliths fusiform, often conspicuous adaxially, base cordate, rounded or truncate, margin shallowly undulate-crenate, apex acute or obtuse. Inflorescences solitary, in upper nodes, male a moniliform spike, 3-4 cm overall, peduncle 1-1.7 cm; female ones 1-2.5 cm (including peduncle 0.5-1 cm); bracts lanceolate, ca. 0.4 mm. Male flowers light yellow-green, pedicellate or sessile, in bud obovoid, ca. 1.5 mm; perianth lobes 4, obovate, connate at base, subapically strongly corniculate; stamens 4; rudimentary ovary oblong. Female perianth lobes unequal, largest lobe cymbiform, 1/2 as long as achene. Achene obliquely ovoid, ca. 0.6 mm, slightly compressed, smooth, with an inconspicuously colored puncticulate ring, enclosed by persistent perianth. Fl. Jun-Aug, fr. Aug-Nov.

* Shaded moist places in forests, thickets; 100-500 m. Guangdong, Guangxi, S Hunan.

1 Leaf blade cordate or suborbicular, apex acute or obtuse, margin shallowly undulate-crenate.   56a var. peltata
+ Leaf blade ovate, apex often acuminate, margin sharply serrate or crenate-serrate.   56b var. ovatifolia


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