Lipschitzia Zaika, Sukhor. & N.Kilian, 2020

Zaika, Maxim A., Kilian, Norbert, Jones, Katy, Krinitsina, Anastasiya A., Nilova, Maya V., Speranskaya, Anna S. & Sukhorukov, Alexander P., 2020, Scorzonera sensu lato (Asteraceae, Cichorieae) - taxonomic reassessment in the light of new molecular phylogenetic and carpological analyses, PhytoKeys 137, pp. 1-85 : 1

Lipschitzia Zaika, Sukhor. & N.Kilian gen. nov.

= Scorzonera sect. Polyclada DC., Prodr. 7(1): 125. 1838. Lectotype (designated here): Scorzonera divaricata Turcz.

Type species.

Lipschitzia divaricata (Turcz.) Zaika, Sukhor. & N.Kilian.

Note.

This new genus corresponds to the monotypic Scorzonera divaricata clade in our phylogenetic analysis. We treat the species in its narrow sense, excluding, for the time being, the varieties with more numerous florets (7-12) per capitulum, because they are likely misplaced in this species (see also Shih and Kilian 2011 sub S. divaricata ).

Diagnostic features.

Subshrubs or perennial herbs; caudex with smooth scarious leaf sheath residues; stem leaves linear to filiform, only to 1 cm long, apically usually hooked; capitula numerous, with 4-5 florets.

Description.

Habit, life form, subterranean parts: subshrubs or perennial herbs with branched caudex covered with smooth scarious leaf sheath residues.

Leaves: sessile, linear to filiform, up to 1 cm, apically often hooked.

Stem, synflorescence: stem divericately branched, glabrous; capitula many, terminal.

Capitula: involucre puberulent, phyllaries in two series, outer phyllaries tiny, triangular or ovate, inner phyllaries oblong; receptacle naked, capitula with 4 or 5 florets; florets yellow, almost equal in length to the involucre.

Pollen: data n/a.

Achenes: 6-10 mm, cylindrical, with 10 ribs, smooth only apically with cylindrical papillae, without emergences and carpopodium; achene wall with both thin- and thick-walled cells (in latter case, the walls are be filled with the tannins) and continuous sclerenchymatous layers which cells orientated parallel to the achene axis, air cavities absent.

Pappus: 5-8 mm, bristles plumose in lower part and scabrid in upper portion, dirty-white.

Chromosome number.

x = 7, diploid ( Khatoon and Ali 1988 as Scorzonera divaricata ).

Etymology.

The new genus is named after Sergey Yu. Lipschitz [Lipshits] (1905-1983), a Russian botanist and monographer of Scorzonera .

Species.

(1) L. divaricata (Turcz.) Zaika, Sukhor. & N.Kilian, comb. nov. ≡ Scorzonera divaricata Turcz., Bull. Soc. Imp. Naturalistes Moscou 5: 200. 1832. urn:lsid:ipni.org:names:77204060-1

Distribution area.

Asia-Temperate: CN; MN.