The genus Callitriche (Plantaginaceae: Callitricheae) in South America

Callitriche is a sub-cosmopolitan plant genus occurring throughout temperate regions of both hemispheres, including the peri-Antarctic islands, with 78 species worldwide. Records of Callitriche include frequent and extensive misidentification due to a combination of factors including a lack of taxon...

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Bibliographic Details
Published in:Phytotaxa
Main Authors: LANSDOWN, RICHARD V., HASSEMER, GUSTAVO
Format: Article in Journal/Newspaper
Language:English
Published: Phytotaxa 2021
Subjects:
Eudicots
new species
nomenclature
overlooked species
taxonomy
typification
Antarctic
Antarc*
Antarctica
Online Access:https://www.mapress.com/j/pt/article/view/phytotaxa.501.1.3
https://doi.org/10.11646/phytotaxa.501.1.3
Description
Summary:Callitriche is a sub-cosmopolitan plant genus occurring throughout temperate regions of both hemispheres, including the peri-Antarctic islands, with 78 species worldwide. Records of Callitriche include frequent and extensive misidentification due to a combination of factors including a lack of taxonomic and nomenclatural clarification before the mid-20th century. This work aims to contribute to the taxonomic knowledge of the genus Callitriche in South America by presenting taxonomic novelties and a revision of some critical species. More specifically, seven new species are described: C. ciliata, C. concinna, C. dacryoidea, C. ecarinata, C. hegelmaieriana, C. praetermissa and C. schotsmaniana. In addition, C. marginata var. berteroana is here raised to species rank, C. mandonis, C. oblongicarpa and C. turfosa are re-established, and the names C. antarctica, C. deflexa, C. deflexa var. brauniana, C. deflexa var. glaziovii, C. deflexa var. phaeocarpa, C. heterophylla, C. heteropoda, C. terrestris and C. turfosa are typified.

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