Taxonomic Revision and Reclassification of Pseudolinosyris with Related Taxa in Galatella (Asteraceae)

Abstract

The taxonomic position of Pseudolinosyris is revised. The genus is reduced to Galatella sect. Pseudolinosyris (Novopokr.) Sennikov comb. nova. It differs from the other sections by its shorter corolla lobes and a higher level of stem lignification. Two species are recognised in this section: G. grimmii (Regel & Schmalh.) Sennikov comb. nova, with three subspecies including G. grimmii subsp. microcephala (Novopokr.) Sennikov comb. nova and G. grimmii subsp. sintenisii (Bornm.) Sennikov comb. nova, and the newly added G. corymbulosa (Bornm.) Sennikov comb. nova. A further species is transferred from Crinitaria to Galatella, G. asperella (Rech. f. & Køie) Sennikov, comb. nova to form a monotypic section Galatella sect. Asperifoliae Sennikov, sect. nova. All the species and subspecies are redescribed and mapped, and their complete synonymy with typifications and a new identification key are provided.