Summary
Taxonomic and ecological notes on all species of Aloysia Palau occurring in Bolivia are provided together with a key to the species. Variation within several species is discussed and questions are raised about the status of many varieties recognised by earlier botanists. A. arcuifolia Nesom and A. herrerae Moldenke are treated as synonyms of A. fiebrigii (Hayek) Moldenke, A. beckii Moldenke and A. mizquensis Ravenna are treated as synonyms of A. gratissima (Gillies & Hook.) Tronc., A. boliviensis Moldenke, A. depressa Ravenna and A. peruviana Turcz. are treated as synonyms of a very variable A. scorodonoides (Kunth) Cham. ex Moldenke which intergrades with A. virgata (Ruiz & Pav.) Juss. ex Moldenke. A table of differences is provided to help distinguish these two ill-defined species. A. axillaris J. R. I. Wood, a Bolivian endemic is described as new, its solitary axillary flowers extending the definition of Aloysia to include species with this kind of inflorescence. The new species is illustrated.
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Notes
This label bears the name Aloysia scorodonoides, under which the type was distributed (Macbride 1960: 650)
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Acknowledgements
I would like to express my thanks to Rosemary Wise for the preparation of the illustration which accompanies this paper and to various colleagues who accompanied me in the field when I was studying and collecting Aloysia, particularly Teresa Ortuño, Magaly Mercado, Margoth Atahuachi, Hibert Huaylla, Julia Gutiérrez and Martha Serrano. Thanks are due to Sandy Atkins and two anonymous reviewers for comments on an earlier draft of this paper. I am also grateful to the directors of BOLV, HSB, LPB and USZ for access to their collections in Bolivia. This paper describes yet another new species discovered during the Darwin Initiative Project no. 11-010 whose support is gratefully acknowledged.
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Wood, J.R.I. Aloysia axillaris (Verbenaceae), a new species, with notes on the genus in Bolivia. Kew Bull 64, 513–523 (2009). https://doi.org/10.1007/s12225-009-9131-5
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DOI: https://doi.org/10.1007/s12225-009-9131-5