Ziba Jamzad - Research Institute of Forests and Rangelands, P.O.Box ۱۳۱۸۵ - ۱۱۶, Tehran, Iran.

A revision of the genus Lagochilus (Labiatae) in Iran is presented. Altogether ۶ species are recognized from Iran. A new species, L. quadridentatus and ۳ new subspecific taxa including L. aucheri subsp. heterophyllus, L. aucheri subsp, aucheri var. elegans and L. aucheri subsp. aucheri var. tomentosus are described. L. lasiocalyx is the new combination, based on L. aucheri var. lasiocalyx. L. aucheri var. perhispidus is treated as a synonym of L. lasiocalyx.

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