Cytisus calcareus (Velen.) Sennikov & Val.N.Tikhom., 2024

Sennikov, Alexander N. & Tikhomirov, Valery N., 2024, Atlas Florae Europaeae notes, 35. Further critical notes on Cytisus sect. Tubocytisus (Fabaceae) in Europe, PhytoKeys 238, pp. 199-230 : 199

5. Cytisus calcareus (Velen.) Sennikov & Val.N.Tikhom. comb. nov.

- Cytisus pygmaeus var. calcareus Velen., Fl. Bulg. Suppl. 1: 71 (1898) - Chamaecytisus calcareus (Velen.) Kuzmanov in Jordanov, Fl. Narodna Republ. Bulg. 6: 103 (1976).

Type.

Bulgaria. "Supra Belledihan in calcareis", 05.1893, J. Velenovský (lectotype PRC 451952, designated by Kuzmanov (1976: 103)).

Distribution.

Europe: Balkan Peninsula (Bulgaria, Greece, North Macedonia, Serbia) ( Kuzmanov 1976; Assyov and Petrova 2012). The occurrences outside Bulgaria are confirmed or reported here (Fig. 8 ). Pifkó and Barina (2016) removed the report of Chamaecytisus calcareus from Albania in favour of their C. pseudojankae , which we synonymise with C. austriacus .

Notes on taxonomy.

This miniature plant belongs to the C. austriacus group because of its terminal inflorescences, which are rather dense and surrounded by floral leaves. It differs from C. austriacus by its short habit, much smaller and shorter, subelliptic (vs. lanceolate) leaves, and from C. jankae by the same shape of leaves (although of similar size) and by subpatent (vs. appressed) pubescence of calyces. This species was omitted by Cristofolini (1991) and is currently recognised only in Bulgaria ( Kuzmanov 1976; Assyov and Petrova 2012).

Notes on nomenclature.

Velenovský (1898) considered this taxon to be intermediate between C. pygmaeus and C. austriacus . The original material represents a mixture of C. austriacus (Kovarna, 08.1897, Škorpil (PRC)) and a taxon currently recognised as C. calcareus ( Kuzmanov 1976). Kuzmanov (1976) designated the latter gathering as lectotype, thus fixing the application of the species name.

Figures

Figure 8. Distribution of Cytisus calcareus (Velen.) Sennikov & Val. N. Tikhom.