Allium toksanbaicum (Amaryllidaceae), a new species from Southeast Kazakhstan Author Friesen, Nikolai 0000-0003-3547-3257 Botanical Garden, University of Osnabrück, Albrechtstrasse 29, 49076, Osnabrück, Germany; nfriesen @ uni-osnabrueck. de; http: // orcid. org / 0000 - 0003 - 3547 - 3257 & I. M. Sechenov First Moscow State Medical University Ministry of Health of the Russian Federation, Department of Pharmaceutical and Natural Sciences, Izmailovsky Boulevard 8, Moscow, 105043, Russia; luferovc @ mail. ru nfriesen@uni-osnabrueck.de Author Vesselova, Polina Institute of Botany and Phytointroduction of the Committee of Forestry and Wildlife belong to the Ministry of Ecology, Geology and Natural Resources of the Republic of Kazakhstan, Almaty, 480070 Kazakhstan; pol _ ves @ mail. ru; be 96 ka _ kz @ mail. ru; sitpaeva @ mail. ru pol_ves@mail.ru Author Osmonaly, Bektemir Institute of Botany and Phytointroduction of the Committee of Forestry and Wildlife belong to the Ministry of Ecology, Geology and Natural Resources of the Republic of Kazakhstan, Almaty, 480070 Kazakhstan; pol _ ves @ mail. ru; be 96 ka _ kz @ mail. ru; sitpaeva @ mail. ru pol_ves@mail.ru Author Sitpayeva, Gulnara Institute of Botany and Phytointroduction of the Committee of Forestry and Wildlife belong to the Ministry of Ecology, Geology and Natural Resources of the Republic of Kazakhstan, Almaty, 480070 Kazakhstan; pol _ ves @ mail. ru; be 96 ka _ kz @ mail. ru; sitpaeva @ mail. ru pol_ves@mail.ru Author Luferov, Alexander I. M. Sechenov First Moscow State Medical University Ministry of Health of the Russian Federation, Department of Pharmaceutical and Natural Sciences, Izmailovsky Boulevard 8, Moscow, 105043, Russia; luferovc @ mail. ru Author Shmakov, Alexander Altai State University, Lenina str., 61; 656049, Barnaul, Russia; alex _ shmakov @ mail. ru text Phytotaxa 2021 2021-04-07 494 3 251 267 http://dx.doi.org/10.11646/phytotaxa.494.3.1 journal article 4452 10.11646/phytotaxa.494.3.1 52f5fc93-af9c-4a44-80cb-0419a7f7724d 1179-3163 5423444 Allium toksanbaicum N.Friesen & Vesselova , sp. nov. Type: — Kazakhstan , Almaty region , southern flank of the Toksanbai mountain range , N 44°33’14” , E 79°37’12.4” , 2880 m , on a scree slope. 22.07.2019 . P . Vesselova , K . Osmonaly , N . Friesen , B . Neuffer , H . Hurka ( Holotype OSBU 27869 !, isotypes AA !, ALTB !) . It differs from the closely related Allium obliquum by purple perianth (not yellow), falcate leaves (not oblique), hemispherical and lax inflorescence, rounded bulbs (not oblong ovate) with coriaceous tunics. It differs from A. carolinianum by inner filaments with obtuse teeth at the base (not triangular without teeth), and rounded (not ovoid), bulbs with dirty yellow coriaceous (not brown, leathery) tunics. Description: —Bulbs clustered, globose, 1.5–2.5 cm in diam., with dirty yellow coriaceous outer and white papery inner tunics. Stem 15–25 cm tall, cylindrical, glabrous, erect, covered by leaf sheaths for 1/5–1/3 of total length. Leaves shorter than scape (2)3–4(5), linear, flat, falcate; leaf blade 12–15 cm long, 10–11 mm wide in the lower part, gradually narrowing to the tip. Spathe persistent, shorter than pedicels, with 1 valve and 2 acute lobes. Inflorescence lax, many flowered, 40–45 mm across, hemispherical, pedicels sub-equal, 9–12 mm long. Perianth campanulate, segments purple, long elliptical, rounded at the apex, 6.5–8 mm long, midrib purple. Stamens for 1/3 longer than tepals ( 9–11 mm ), inner filaments with obtuse teeth at the base; anthers dark purple, oblong, 1.5–2 mm long. Ovary ovoid, with concave nectaries covered by hood like projection at base, white, densely roughish above, style white-purple, exserted, 7 mm long. Seeds and fruits not seen. 2n = 16. Fig. 2 A–D . Etymology: —The epithet refers to the Toksanbai range. Distribution: — Kazakhstan , Toksanbai range, South Dzungaria Mountains (currently known from the type locality only). Ecology: —On the scree slopes in the alpine belt.