Table 1 in Typification and taxonomic remarks on five species names in Cytisus (Fabaceae)

Table 1. Overview of elements involved in the nomenclatural history of four Cytisus taxa described by K.B. Presl and K.P.J. Sprengel from Italy and their taxonomic interpretation.
Barcode and nomenclatural typeIdentification and morphology of specimenPresl’s identificationLabel(s)NotesPRC 450903 (Fig. 1A) lectotype of C. affinis C.PreslC. villosus Pourr.C. affinis C.Presl" Cytisus affinis Presl. / In apricis regionis collinae Siciliae / ad Panormum, in insula Capri ad Nea- / polium, etc. Maj. 1817"Standard Presl’s label from his own herbariumPR 375413 (Fig. 1B) other original material (syntype) of C. affinis C.PreslC. villosus Pourr.C. affinis C.Presl" Cytisus / triflorus L’Her. / β C. affinis / Presl. // Colles Siciliae // Collegit Presl. / Adn. Differt a C. trifloro ramis angulatis hirsutis foliolis obovatis"Large Presl’s label cut out from the specimen folder used in Sternberg’s herbarium" Cytisus triflorus. L. / Colles. Apr."Presl’s label from his exsiccata collection Plantae Siculae, written in 1817 or early afterPR 375660 (Fig. 1C) lectotype of C. candidus C.Presl, lectotype of C. spinescens Sieber ex Spreng.C. spinescens Sieber ex Spreng., well dried plants with preserved colours, well matching Sieber’s collection from GarganoC. candidus C.Presl" Cytisus / candidus / Presl. // Mons Garganus Apulia // Collegit Sieber"Large Presl’s label cut out from the specimen folder used in Sternberg’s herbarium" Cytisus spinosus, Dec. / Stachelichter Bohnenbaum. / Auf felsigten Stellen de Südseite / des Berges Gargano im May 1812"Sieber’s label from his exsiccata collection Plantae Neapolitanae et Apulae, printed in 1812 or early afterPRC 454917 (Fig. 1D) isolectotype of C. candidus C.Presl, isolectotype of C. spinescens Sieber ex Spreng.C. spinescens Sieber ex Spreng., well dried plants with preserved colours, well matching Sieber’s collection from GarganoC. candidus C.Presl" Cytisus candidus Presl fl. sic. / C. nanus Sieb. pl. ital. exs. / C. biflorus Sieb. pl. ital. exs."Presl’s handwritten label, which is very similar to the label on PRC 452282 (Fig. 2D) and was presumably written in 1832 or later. Reference to Sieber’s collection from Capri, also noted on specimen PR 375417 (Fig. 2A). Reference to C. nanus was probably wrongly ascribed to Sieber and, in fact, it refers to the specimen of L. Thomas" Cytisus candidus Presl. / E Sicilia."Presl’s handwritten labelPR 375417 (Fig. 2A) lectotype of C. spinescens C.Presl, nom. illeg.C. spinescens Sieber ex Spreng., bleached and brownish plants, well matching Thomas’ collection from CalabriaC. spinescens C.Presl" Cytisus / spinescens / Presl / non Spr. // Insula / Capri et / in Sicilia // A Schleichero / et collegit Sieber"Large Presl’s label cut out from the specimen folder used in Sternberg’s herbarium written in 1826 or later. K.B. Presl referred to Schleicher, not to Thomas. J. C. Schleicher (1768-1834) was contemporary and also competitor of AbrahamThomas (1740-1824, father), Abraham Louis Emmanuel Thomas (1788-1859, son), Charles-François-Louis-Alexandre Thomas (1784-1823, son). Thomas’ family owned horticultural business in Bex, Switzerland (Moret, 1993, 1999), where was also active J.C. Schleicher. Gathering collected by one of Thomas was most probably sent to Prague by Schleicher (reference to Sprengel’s publication given)" Cytisus nanus Willd / seu nova species / Calabre"Handwritten label probably by Ch.F.L.A. Thomas, but not entirely sure if written by him or by his brother A.L.E. Thomas. Based on the note on duplicate specimen kept in Wien (W 333912, Fig. 2B). According to Burdet (1978), the label is more probably written by A.L.E. Thomas, although presumably collected by Ch.F.L.A. Thomas, who worked in CalabriaPRC 450971 (Fig. 2C) isolectotype of C. spinescens C.Presl, nom. illeg.C. spinescens Sieber ex Spreng., bleached and brownish plants, well matching Thomas’ collection from CalabriaC. spinescens C.Presl" Cytisus spinescens. Presl / E Sicilia."Presl’s handwritten label; the annotations "fl. sic. 1825" and "C. argyreus Rchb. 1830" in pencil probably written by Kosteletzky were added laterPRC 452282 (Fig. 2D) isolectotype of C. spinescens C.Presl, nom. illeg.C. spinescens Sieber ex Spreng., bleached and brownish plants, well matching Thomas’ collection from CalabriaC. spinescens C.Presl" Cytisus spinescens Presl fl. sic. (1825) / C. spinosus Sieb. pl. ital. exs., Günther / herb. / C. argyreius Reichenb. (1830)"Presl’s handwritten label from 1832 or later [reference to Reichenbach’s publication given]" Cytisus spinosus, Dec. / Stachelichter Bohnenbaum. / Auf felsigten Stellen de Südseite / des Berges Gargano im May 1812"Sieber’s label from his exsiccate collection Plantae Neapolitanae et Apulae, printed in 1812 or early afterPRC 455779C. spinescens Sieber ex Spreng., glabrescent morphotype-" Cytisus biflorus. Tenore. / Zweiblüthiger Bohnenbaum / Auf der Insel Capri, den 6. April 1812."Sieber’s label from his exsiccate collection Plantae Neapolitanae et Apulae and with Presl’s annotation ‘Sieber’, printed in 1812 or early after