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84. Pycnoplinthopsis Jafri, Pakistan J. Bot. 4: 73. 1972.

假簇芥属 jia cu jie shu

Description from Flora of China

Herbs perennial, cespitose, scapose, with simple or many-branched caudex. Trichomes dendritic or forked, occasionally with few simple ones. Basal leaves petiolate, not fleshy, forming well-defined rosettes; petiole caducous, thin; leaf blade simple, distally coarsely dentate or incised. Cauline leaves absent. Flowers solitary on pedicels originating from center of rosette. Fruiting pedicels slender, strongly reflexed, much shorter than leaves. Sepals united into campanulate calyx, persistent, not saccate; lobes ovate or deltoid. Petals white, longer than sepals; blade broadly obovate, shallowly emarginate at apex; claw obscurely differentiated from blade. Stamens 6, tetradynamous; filaments not dilated at base; anthers blackish, oblong, apiculate at apex. Nectar glands 2, lateral, semiannular, intrastaminal; median glands absent. Ovules 8-20 per ovary. Fruit dehiscent siliques or silicles, linear or oblong, terete, geocarpic; valves papery, not navicular, torulose, obscurely veined; replum rounded; septum complete, membranous, with a central midvein; style to 1.5 mm; stigma capitate, entire. Seeds uniseriate, wingless, oblong, plump; seed coat obscurely reticulate, not mucilaginous when wetted; cotyledons incumbent.

One species: Bhutan, China, India, Nepal, Sikkim.


 

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