夏蜡梅属 xia la mei shu

Basteria Miller; Calycanthus sect. Sinocalycanthus W. C. Cheng & S. Y. Chang; Sinocalycanthus (W. C. Cheng & S. Y. Chang) W. C. Cheng & S. Y. Chang.

Shrubs, deciduous, aromatic. Branchlets dichotomous; buds naked, hidden [or not hidden] by base of petiole. Leaf blade membranous. Flowers terminal on branchlets, solitary, not aromatic, distinctly pedicellate. Tepals numerous, distinctly dimorphic [or not]. Stamens numerous; filaments short; staminodes few. Carpels numerous, with silky hairs. Pseudocarp campanulate, base with an attenuate long stalk, apex constricted. Achenes oblong.

Three species: China, North America; one species (endemic) in China.

The North American taxa Calycanthus floridus Linnaeus var. floridus, C. floridus var. glaucus (Willdenow) Torrey & A. Gray (C. floridus var. laevigatus (Willdenow) Torrey & A. Gray), and C. occidentalis Hooker & Arnott are sometimes cultivated as garden plants in China.

Lower Taxon

• Calycanthus chinensis (W. C. Cheng & S. Y. Chang) W. C. Cheng & S. Y. Chang ex P. T. Li