Siphocampylus verticillatus (Chamisso) G. Don (1834: 703) .

Lobelia verticillata Chamisso (1833: 202) .

Lectotype (designated here):—[BRAZIL.] Brasilia [Meridional] . F. Sellow s/n (B 10-0242536!, isolectotypes: HAL 0068263!, HAL 0097794!, HAL 0068481!, K 000329868!, K 000329869!, K 000329870!, LE 01032122!, M 0175703!, M 0175704!).

Note: — The original diagnosis by Chamisso (1833) mentioned material collected by F. Sellow in Brazil as type. We selected as lectotype the material kept in B since it fully agrees with the protologue and because it is a complete and well-preserved specimen.