The genus Canthium (Rubiaceae, Vanguerieae) in Thailand, with a note on the typification of the genus
DOI:
https://doi.org/10.20531/tfb.2022.50.2.16Keywords:
Keys, lectotypes, morphology, new species, Psydrax, Pyrostria, TaxonomyAbstract
Canthium s.s. comprises sixteen species in Thailand. They are described and annotated, and placed in a key to the species. The type species of the genus is Canthium parviflorum, from India, but this name is not antedated by C. coromandelicum, which is a different species. Canthium parviflorum is lectotypified. For Thailand three new species, Canthium flavovirens, C. grandiflorum, and C. rotundum are described, and thirteen lectotypes are designated.
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