First records of non-native species Callitriche deflexa (Plantaginaceae), which was previously misidentified as C. terrestris in Japan
Citation
Koga H (2024). First records of non-native species Callitriche deflexa (Plantaginaceae), which was previously misidentified as C. terrestris in Japan. Biodiversity Data Journal. Checklist dataset https://doi.org/10.3897/bdj.12.e115142 accessed via GBIF.org on 2024-12-12.Description
The cosmopolitan genus Callitriche (Plantaginaceae) is a clade of small herbaceous plants that encompasses terrestrial and aquatic species. In Japan, six Callitriche species have been identified: four native and two naturalised species. Callitriche terrestris, a naturalised terrestrial species, was first reported in 1984 in Kanagawa Prefecture and it is thriving today.We report the presence of a new naturalised terrestrial species, Callitriche deflexa, which has been previously misidentified as C. terrestris because of its similar morphology. Callitriche deflexa can be distinguished from C. terrestris through genetic differences and distinct morphological traits, such as longer pedicels. Re-examination of herbarium specimens in the Kanagawa Prefectural Museum of Natural History confirmed that most of the specimens labelled as C. terrestris, including voucher specimens from the original report, were indeed C. terrestris, but a few were C. deflexa. We also noted that the plants referred to as “C. terrestris” in our previous developmental studies should be corrected to C. deflexa.Taxonomic Coverages
Geographic Coverages
Bibliographic Citations
Contacts
Hiroyuki Kogaoriginator
position: Dr
The University of Tokyo
Tokyo
JP
email: hiro1224koga@gmail.com
Hiroyuki Koga
metadata author
position: Dr
The University of Tokyo
Tokyo
JP
email: hiro1224koga@gmail.com
Hiroyuki Koga
administrative point of contact
position: Dr
The University of Tokyo
Tokyo
JP
email: hiro1224koga@gmail.com