作者

LIN, QI

型態特徵

Evergreen shrubs or trees, glabrous, usually aromatic. Bud-scales conspicuous, imbricate. Leaves alternate, subopposite, pseudowhorled or clustered at apes of branches, costa generally impressed above; estipulate. Flowers bisexual, solitary or fascicled, axillary, supra-axillary or subterminal, sometimes ramiflorous or cauliforous, bracteate; pedicellate. Perianth segments 7-55, free, red, purple, yellow or white, imbricate, usually several-seriate, elliptic, oblong, ligulate or lanceolate, flat and thin-carnose or orbicular to ovate, concave and carnose. Stamens 4-50, free, 1 to several-seriate; filaments ligulate to subterete; anthers basifixed, 2-celled. Carpels 5-21, free, in a single whorl (rarely 2-whorls); stigma subulate and persistent; without style; ovary ovoid or ellipsoid, laterally flattened, unilocular, with single, near-basal, anatropous ovule. Fruit of spreading compressed follicles; follicles 2-20, free, in a single whorl, oblong to ovoid, subwoody, base broad, apex rostrate, dehiscing ventrally. Seed 1 in each follicle, yellowish to brownish, ovoid or ellipsoid, laterally flattened, smooth, glossy, brittle; embryo minute; endosperm copious, oily.

屬

Monogeneric.

參考文獻

作者

LI, HUI-LIN & CHAW, SHU-MIAW

型態特徵

Scrambling woody vines, monoecious or dioecious, glabrous throughout; branchlets subtended by imbricate bud-scales. Leaves simple, alternate, spirally arranged or congested at the laterally terminal brachlets, estipulate. Flowers unisexual, mostly solitary and axillary to leaves on lateral and terminal branchlets or rarely aggregated on branches, pedicellate, hypogynous, actinomorphic; pedicels with minute bracteoles; perianth of 5-17 tepals, the outermost green abaxially, more showy inward and adaxially. Staminate flowers with many stamens, variously aggregated; anthers 4-sporangiate, the 2 thecae lateral, dehiscing longitudinally; filaments short, basally fused to a cylindrical to globose torus, the connective slightly swollen and broaden, pollen usually 6-colpate with 3 colpi converging at the distal pole. Pistillate flowers with many subascending carpels, the carpels 1-loculed, narrowed basally and fused to a cylindrical to globose torus; style short, the stigma papillate; ovary ovoid to obovoid; ovules 2-5, anatropus; fruits sessile, baccate, on a globose or elongate torus; seeds 1-5, laterally flattened, reniform or ovoid, the testa smooth or rugulate, the endosperm copious, oily, the embryo small.

參考文獻