Phagnalon ×paschale Sennen (1929: 43)

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 : 9

Phagnalon ×paschale Sennen (1929: 43)

Type:—[ SPAIN.] Tarragone : Tortose, rochers calcaires, 13 April 1922, Sennen 4429 (lectotype: BC-SENNEN barcode BC945732 !, designated here; isolectotypes: BC barcode BC31430 !, BC-SENNEN barcode BC945735 !, BM barcode BM001025778 [digital image!], GZU barcode GZU000273000 [digital image!], Herb. F. Sennen II number 12602!, MA number MA124748 !, P barcodes P02829258 , P04401424 [digital images!], W number W1926-23064 !) .

(Image available at: http://www.ibb.csic.es/herbari/ JPEG / BC 945732.jpg).

= Phagnalon × telonense Jordan & Fourreau (1868: 61) [ Ph. saxatile (L.) Cass. × Ph. sordidum (L.) Rchb.]

Notes:— Sennen (1929) described Phagnalon × paschale from northeastern Spain: “Hab.- Tarragone: Tortose, mêmes station et localités des précédents Nº 4429” and pointed out that it was a hybrid between Ph. caroli [which was thought to be a hybrid between Ph. rupestre × Ph. sordidum ] and Ph. saxatile , but the type material studied only showed intermediate morphology between Ph. saxatile and Ph. sordidum . This may be attributed to hybridization events. These intermediate specimens have more oblong to linear leaves, their bracts are ovate to oblong like those of Ph. sordidum but the peduncle is branched and the mature capitula are campanulate with some reflexed external bracts like that of Ph. saxatile , whereas no glomerules are formed. However, involucral bracts are more or less appressed and the apex is more or less obtuse in some specimens. We selected as the lectotype the specimen from the institution where the author was working that morphologically agrees best with the original description and locality.