Sabulina birjuczensis (Klokov) Mosyakin & Fedoronchuk, 2015

Mosyakin, Sergei L. & Fedoronchuk, Mykola M., 2015, New combinations for East European species of Sabulina (Caryophyllaceae), Phytotaxa 231 (1), pp. 95-98 : 95

Sabulina birjuczensis (Klokov) Mosyakin & Fedoronchuk , comb. nov.

Basionym: Minuartia birjuczensis Klokov (1947: 67) .

Type:—not designated (probably lost or destroyed?).

Ind. Loc.:— UKRAINE: RSS Ucr., insula maeotica Birjuczij , V.1936. Leg. T. Cziza ; in Herb. Universit. Charcov. conservatur (according to the protologue).

Note:— Sabulina birjuczensis seems to be closely related to S. hypanica ( Klokov 1947: 66) Mosyakin & Fedoronchuk , comb. nov. (see below). The species was described from Biryuchiy (Birjuczij) Island in the Sea of Azov (Genichesk District, Kherson Region, Ukraine). Type specimens of this species are absent in herbaria CWU, KW and LE (probably lost or destroyed). According to the protologue, S. birjuczensis differs from S. hypanica only in having twisted and curved stems and small obtuse tubercles on the seed surface, while the tubercles are acutely pointed in S. hypanica (however the latter character is reliably observable only in mature seeds). This taxon needs further studies, although it was accepted as a species by Klokov (1952), Mosyakin & Fedoronchuk (1999), Fedoronchuk & Didukh (2002), Tzvelev (2002, 2004, 2012), and Ostapko et al. (2010).