NATURAL SCIENCES

Journal of fundamental
and
applied researches

New and sparse taxa in the flora of the Lower Volga

2013. №4, pp. 21-27

Laktionov Alexey P. - D.Sc. (Biology), Professor, Astrakhan State University, 1 Shaumyan Sq., Astrakhan, 414000, Russian Federation, alaktionov@list.ru

Papchenkov Vladimir G. - D.Sc. (Biology), Head of Laboratory, Papanin Institute for Biology of Inland Waters RAS, Borok, Nekouz district, Yaroslavl region, 152742, Russian Federation, papch@mail.ru

Arkhipova Ekaterina A. - Ph.D. (Biology), Chief Engineer, Saratov State University named after N. G. Chernyshevsky, 83 Astrakhanskaya Str., Saratov, 410012, Russian Federation, arhipovaea@mail.ru

Parhomenko Vasilij M. - Ph.D. (Biology), Engineer, Saratov State University named after N. G. Chernyshevsky, 83 Astrakhanskaya Str., Saratov, 410012, Russian Federation, parhomenko_vm@mail.ru

Meshcheryakova Natalia O. - post-graduate student, Astrakhan State University, 1 Shaumyan Sq., Astrakhan, 414000, Russian Federation, nata11m@list.ru

Voloboeva Oksana V. - post-graduate student, Astrakhan State University, 1 Shaumyan Sq., Astrakhan, 414000, Russian Federation, shpilka.ok@yandex.ru

The new species for the flora of the South-East of Russia is represented – Ruppia brachypus J. Gay. As new ones for the flora of the Lower Volga region are Bolboschoenus laticarpus Marhold et al., Butomus junceus Turcz., Echinochloa microstachya (Wiegand) Rydb., Eleocharis austriaca Hayek x E. uniglumis (Link) Schult., Lactuca saligna L. x L. serriola L., Phragmites stenophyllus (Boiss.) Rouy. New species to the flora of the Astrakhan region are Chenopodium x jedlickae Dvo??k, Salix x alopecuroides Tausch, Salix x hexandra Ehrh., Salix x lispoclados Dode, Salix x meyeriana Rostkov ex Willd. New finds of rare species of the flora of the Saratov region are indicated: Comarum palustre L., Halocnemum strobilaceum (Pall.) Bieb., Hypericum maculatum Crantz.

Key words: new and critical species,the flora of the South-East Russia,the flora of the Lower Volga region,the flora of the Astrakhan region,the flora of the Saratov region