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Four new species of Euphorbia sect. Pithyusa (subg. Esula, Euphorbiaceae) from SW Asia

AMIR H. PAHLEVANI

Abstract


Four new SW Asian species of Euphorbia subg. Esula, sect. Pithyusa are described and mapped. Euphorbia acanthoclada is known from W Afghanistan and is compared with E. acanthodes. Euphorbia boreo-baluchestanica and E. ziaratensis are found from N Baluchistan of Pakistan and are most similar to E. prolifera and E. sulphurea respectively. Euphorbia kavirensis is known from temperate desert of the interior Iran, Dasht-e Kavir, and is closely related to the Iranian E. gedrosiaca. Diagnosis, description, distribution, ecology, conservation status, image and pertinent notes, if needed, are also considered.


Keywords


Afghanistan, endemic, Iran, Irano-Turanian, Pakistan, taxonomy, Eudicots

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DOI: http://dx.doi.org/10.11646/phytotaxa.312.1.6

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ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand