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Title: Proposal to conserve Tamarix ramosissima against T. pentandra Tamaricaceae)

Author
item VILLAR, JOSE - Universidad De Alicante
item ALONSO, M ANGELES - Universidad De Alicante
item Gaskin, John
item JUAN, ANA - Universidad De Alicante
item CRESPO, MANUEL - Universidad De Alicante

Submitted to: Taxon
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: 10/1/2014
Publication Date: 10/1/2014
Publication URL: https://handle.nal.usda.gov/10113/59758
Citation: Villar, J.L., Alonso, M., Gaskin, J.F., Juan, A., Crespo, M.B. 2014. Proposal to conserve Tamarix ramosissima against T. pentandra Tamaricaceae). Taxon. 63(5):1140-1142.

Interpretive Summary: We are working on a plant that has multiple scientific names. To avoid future confusion in scientific research and taxonomic studies, we needed to clarify the correct name using historical collection data and notes. This work is in compliance to botanical taxonomic laws and rules. Hereafter, we propose that specimens named Tamarix pallasii should be correctly named Tamarix ramosissma.

Technical Abstract: Ledebour described Tamarix ramosissima in 1829 from plants collected in Kazakhstan (Lake Noor Zaisan). In the protologue he overlooked T. pentandra Pall. (l.c.) and T. pallasii Desv. (l.c.), two earlier names which apply to the same biological entity, also widespread through Central and Western Asia. During the 19th Century, most botanists considered T. ramosissima as a synonym of T. pallasii (Boissier, Fl. Orient. 1: 773. 1867; Hooker, Fl. Brit. India 1(2): 248. 1874), or they combined it as a variety [T. pallasii var. ramosissima (Ledeb.) Bunge, Tent. Gen. Tamar.: 51. 1852]. The type of T. ramosissima is supposed to be a collection by Politow in 1826, which was later sent to Ledebour by Gleber (cf. Baum, Monogr. Rev. Gen. Tamarix: 44. 1966). However, different copies of that collection are found at several herbaria (K, PRC! and W!), and it was said to be heterogeneous (Bunge, l.c.), at times containing material of T. leptostachys Bunge as well. Hence, in order to avoid further confusion the specimen W0031725!, which includes homogeneous material matching the current concept of the species, is selected here as lectotype of T. ramosissima.