Pilea sinocrassifolia C. J. Chen

Herbs prostrate, glabrous, monoecious. Stems much branched, succulent, with dense cystoliths when dry. Stipules persistent, triangular, ca. 1 mm, membranous; petiole subequal in length, 0.2-0.6 mm; leaf blade adaxially green, suborbicular, subequal in size, 4-8.5 × 6-18 mm, succulent, papery when dry, 3-veined, lateral pair reaching margin in middle, secondary veins 2-4 each side, all veins inconspicuous, abaxial surface rugose, cystoliths fusiform, conspicuous, base subtruncate, margin entire and revolute, apex subrounded. Male inflorescences solitary, in upper nodes, a capitulum, peduncle 2-5 mm, glomerules of a few flowers; bracts ovate-lanceolate, ca. 0.8 mm. Female inflorescence not seen. Male flowers yellow-green, pedicellate, in bud ca. 2 mm; perianth lobes 4, obovate-oblong, connate 1/2 of length, subapically corniculate, with 2 small gibbose appendices at each side; stamens 4; rudimentary ovary oblong. Fl. Nov-Mar.

SW Fujian, N Guangdong, Guizhou, S Hunan, SE Yunnan.

* Shaded moist places, rocks along streams; 200-1000 m.

Pilea crassifolia Hance, J. Bot. 20: 294. 1882, not Blume (1855).