Phagnalon rupestre var. illyricum Lindberg (1906: 107)

Montes-Moreno, Noemí, Garcia-Jacas, Núria, Nualart, Neus, Susanna, Alfonso & Sáez, Llorenç, 2018, Typification of plant names referable to Phagnalon (Compositae) with some taxonomic notes, Phytotaxa 360 (1), pp. 1-18 : 11

Phagnalon rupestre var. illyricum Lindberg (1906: 107)

≡ Phagnalon rupestre subsp. illyricum (H.Lindb.) Ginzberger (1921: 198)

Type:—[ CROATIA.] Dalmatia , montis Marian ditione Spalatensis, in rupestribus et ad muros vetustos, s.d., Pichler s.n. (lectotype: H barcode H1644534 [digital image!], designated here; isolectotypes: BM!, C barcode C0007765 [digital image!], E barcode E00433309 [digital image!], GOET number GOET1415 [digital image!], K barcode K000910416 !, M barcode M0029839 [digital image!], W number W1887-4049 !, WU!) .

= Phagnalon rupestre (L.) Candolle (1836: 396) subsp. rupestre

Notes:—The locality is indicated in the original description as follows: “Dalm., Spalato, Monte Marian, in rupestribus calc. apricis”. The author stated clearly in the protologue that the original material was distributed as part of the “Flora Austro-Hungarica Exsiccata, num. 250”. We found different specimens with the note “var. illyricum ” handwritten on the label and corresponding to original material at H. We selected the specimen H1644534 as the lectotype because it belongs to the syntype gathering collected in Monte Marian and morphologically agrees with the protologue. One of the specimens kept at H does not belong to the original material as it was collected in Ragusa but not in the original locality. The original description was based on the following combination of morphological characters: size of the capitula, number of florets per capitulum, width of involucral bracts and outermost and involucral bracts with acute margins. However, after performing a biometric study of specimens from Croatia and from the entire geographical distribution of Ph. rupestre subsp. rupestre , we found that the apex of the outermost and middle involucral bracts was variable, ranging from acute to obtuse. Moreover, the size of the capitulum, the number of florets and the size of involucral bracts of specimens from the Central Mediterranean basin (from Croatia to East France) strongly overlap with the ranges of those for Ph. rupestre subsp. rupestre . Therefore, we conclude that the range of the size of the capitula, the width of the outermost and middle involucral bracts, and the number of florets per capitulum fall within the range of the variability of Ph. rupestre subsp. rupestre , and therefore, these specimens do not merit taxonomic recognition.