The genus Callitriche (Plantaginaceae: Callitricheae) in South America
Lansdown, Richard V.
Hassemer, Gustavo
Phytotaxa
2021
2021-05-19
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9. Fruit higher than wide, ± even width from base to apex .........................................................................................11. C. heteropoda - Fruit as wide as high or slightly higher; widest at the middle..........................................................................................................10