A new species, Navicula lothargeitleri sp nov., within the Navicula cryptocephala complex (Bacillariophyceae)

作者：Poulickova Aloisie^*; Neustupa Jiri; Hasler Petr; Tomanec Ondrej; Cox Eileen J

来源：Phytotaxa, 2016, 273(1): 23-33.

DOI：10.11646/phytotaxa.273.1.2

• cryptic diversity
• Navicula lothargeitleri sp nov.
• epipelon
• morphology
• genetic
• cytology

Recently published phylogenetic analyses of 52 strains of Navicula cryptocephala-like diatoms confirmed the existence of genetically distinct lineages within N. cryptocephala: clade I "RBG" and clade II "Lubnaig". Using geometric morphometry, we compared strains of both clades with the lectotype and found that clade I represents N. cryptocephala sensu stricto, while clade II constitutes a different taxon, for which we establish a new species, Navicula lothargeitleri sp. nov. Both species can be distinguished by their interphase nucleus structure. Slight differences in valve morphology are described and discussed.

• 出版日期2016-9-5