Mohammad Qaiser - Department of Botany, University of Karachi, Karachi -۳۲, Pakistan.

A revision of Tamarix in Pakistan is presented, including nomen­clature, key, descriptions, locality lists and critical comments. The treatment is based on extensive living material as well as herbarium material in Pakistan and major European herbaria. Types have been examined of almost all taxa discussed. ۲۵ species, one of which is divided into two varieties, are recognized in Pakistan. ۵ new species are described: T. pakistanica Qaiser, T. baluchistanica Qaiser, T. sultanii Qaiser, T. alii Qaiser, and T. sarenensis Qaiser, One new combination, T. androssowii Litw. var. transcaucasica (Bge.) Qaiser, is presented. The following names are for the first time treated as synonyms: T. florida Bge. var. albiflora Bge. (= T. arceuthoides Bge.), T. bungei Boiss. (=T. arceuthoides Bge.), T. karakalensis Freyn var. myriantha Freyn (= T. arceuthoides Bge.), T. leptopetala Bge. (= T. mascatensis Bge.) T. desertii Boiss. [ = T. tetragyna Ehrenb. var. meyeri (Boiss.) Boiss.], T. bengalensis Baum (= T. indica willd.),T. pauciovulata J. Gay ex Batt. & Trab. (= T. passerinoides Del. ex Desv. var. macrocarpa Ehrenb.), T. balansae J. Gay ex Batt. & Trab. (= T. passerinoides Del. ex Desv. var. macrocarpa Ehrenb.).

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