Five new species and a new combination in cyperaceae from the Kimberley region of Western Australia

Abstract

Rye, B.L., Barrett, R.L., Barrett, M.D., Bruhl, J.J., Clarke, K.L. & Wilson, K.L. Five new species and a new combination in Cyperaceae from the Kimberley region of Western Australia. Nuytsia 26: 167-184 (2015). Four new species of Actinoschoenus Benth. and one new species of Fimbristylis Vahl are described from the north Kimberley region of Western Australia: A. glabrispiculus Rye, R.L.Barrett & M.D.Barrett, A. pentagonus Rye, R.L.Barrett & M.D.Barrett, A. quadricostatus Rye, R.L.Barrett & M.D.Barrett, A. ramosus Rye, R.L.Barrett & M.D.Barrett, and F. helicophylla Rye, R.L.Barrett & M.D.Barrett. One new combination is made: A. arthrostyloides (W.Fitzg.) K.L.Clarke, K.L.Wilson & J.J.Bruhl. Several of these species have very restricted distributions and are of conservation concern. Two species also occur in the western Northern Territory. All of these taxa have previously been listed on Western Australia’s plant census under phrase names. All species are illustrated. A revised key to species of Actinoschoenus in the Kimberley region is provided.