Elasis D.R.Hunt, Kew Bull. 33(2): 332. 1978., D. R. Hunt, Kew Bull. 33 (2): 332. 1978.

Pellegrini, Marco O. O., 2017, Morphological phylogeny of Tradescantia L. (Commelinaceae) sheds light on a new infrageneric classification for the genus and novelties on the systematics of subtribe Tradescantiinae, PhytoKeys 89, pp. 11-72: 29

publication ID


persistent identifier


treatment provided by

PhytoKeys by Pensoft

scientific name

Elasis D.R.Hunt, Kew Bull. 33(2): 332. 1978.


1. Elasis D.R.Hunt, Kew Bull. 33(2): 332. 1978.   Fig. 6K-L View Figure 6

Tradescantia sect. Coholomia   D.R.Hunt, Kew Bull. 35(2): 440. 1980., Syn. nov. Type species. T. guatemalensis   C.B.Clarke ex Donn.Sm. [≡ E. guatemalensis   (C.B.Clarke ex Donn.Sm.) M.Pell.].

Type species.

Elasis hirsuta   (Kunth) D.R.Hunt (≡ Tradescantia hirsuta   Kunth).


A taxonomic revision of Elasis   is currently being prepared (Pellegrini and Hunt, in prep.) and should address pending taxonomic problems in the genus. In gross flower morphology, Elasis   can be confused with Tradescantia   and most of its segregate genera (i.e. some species of Callisia   , Gibasis   , Matudanthus   , Thyrsanthemum   , Gibasoides   , and Sauvallea   ). Nonetheless, Elasis   can be easily differentiated from these genera due to its sessile inflorescence, with 1-several fasciculate, non-geniculate cincinni, pedicellate flowers, petals lacking tannin cells, inconspicuous connectives, and truncate stigma (Fig. 5 View Figure 5 , clade C; Fig. 6K-L View Figure 6 ).