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Leucosceptrum Smith


Description from Flora of China

Shrubs to small trees, bark smooth, stellate-tomentose. Leaves petiolate. Verticillasters in dense, terminal cylindric spikes; bracts subreniform, densely overlapping; bracteoles minute, linear. Pedicel short. Calyx campanulate, densely tomentose, slightly curved, 15-veined; teeth 5(-7), equal, triangular. Corolla white or reddish to purple-red, tubular, with a hairy annulus inside; limb 2-lipped, upper lip emarginate; lower lip 3-lobed, middle lobe larger. Stamens 4, anterior 2 longer, inserted at middle of corolla tube; filaments slender, densely puberulent at base, involute in bud, much exserted in flower; anthers 1-locellate, reniform, transversely dehiscent, basifixed. Ovary 4-lobed, tuberculate. Style slender, apex subequally 2-cleft, lobes subulate. Disc subannular, equally shallow 4-lobed. Nutlets triquetrous, oblong, apex truncate, areolae basal.

Monotypic: Bhutan, China, India, Laos, Myanmar, Nepal, Vietnam.

While Leucosceptrum stellipilum (Miquel) Kitamura & Murata var. formosanum (Ohwi) Kitamura & Murata (Acta Phytotax. Geobot. 20: 171. 1962) was recently cited by T. C. Huang & W. T. Cheng (Fl. Taiwan 4: 481. 1978), H. W. Li believes this taxon to be a Comanthosphace which he maintains as distinct from Leucosceptrum.

Lower Taxon


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