Protologue of Tradescantia crassula, page 1 (Link and Otto 1828a: 13).
Part of:
Hassemer G, Funez LA, Ferreira JPR, Aona LYS (2017) The correct typification of
Tradescantia crassula
(Commelinaceae). PhytoKeys 80: 121-127.
https://doi.org/10.3897/phytokeys.80.13448