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United States Department of Agriculture

Agricultural Research Service

Research Project: TAXONOMY AND GENETIC DIVERSITY ASSESSMENT OF LANDSCAPE TREES AND SHRUBS

Location: Floral and Nursery Plants Research Unit

Title: A new variety of Declieuxia cucuminis (Rubiaceae) from the state of Tocantins, Brazil, and a review of the varieties recognized in the species

Authors
item Kirkbride, Joseph
item Delprete, Piero -

Submitted to: Journal of Botanical Research Institute of Texas
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: October 1, 2012
Publication Date: November 23, 2012
Citation: Kirkbride, J.H., Delprete, P.G. 2012. A new variety of Declieuxia cucuminis (Rubiaceae) from the state of Tocantins, Brazil, and a review of the varieties recognized in the species. Journal of Botanical Research Institute of Texas. 6(2):391-396.

Interpretive Summary: A rare variety of de Clieu’s madder in the coffee family was recently discovered in the Brazilian state of Tocantins. Comparison of the plant to the recent floristic treatment of the coffee family for the Brazilian states of Goias and Tocantins and the known Brazilian species of the genus established that it belongs to the high-elevation madder of de Clieu and is new to science. It is described, and its distribution relative to the other three varieties of de Clieu’s high-elevation madder is discussed.

Technical Abstract: A new variety of Declieuxia cacuminis Müll. Arg. is described and illustrated, D. cacuminis var. tocantinensis Delprete & J.H. Kirkbr. The new variety is endemic to the Brazilian state of Tocantins, and has been reported from cerrado vegetation in the southeastern corner of the state.

Last Modified: 4/19/2014
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