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Published: 2022-09-14

Toxocarpus incarnatus (Apocynaceae, Secamonoideae), a new species from Thailand

Plants of Thailand Research Unit, Department of Botany, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
ovoid-ellipsoid style-head pink-orange flower Ratchaburi province rusty pubescence Secamone Eudicots


Toxocarpus incarnatus A. Kidyoo, newly described here, is a twining climber growing in disturbed evergreen forest in western Thailand. A diagnosis and detailed description of this new species, as well as photographs are provided. Several characters of T. incarnatus are compared with those of T. oblanceolatus, considered to be a close relative. These two species display consistent differences in leaf shape, flower color and characters of the style-head. In addition, a comparison with other species, T. concanensis and T. spirei, is also provided.


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