Lobelia fistulosa Vellozo (1831: 157)

Rollim, Isis De Mello, Coelho, Guilherme Peres, Miotto, Silvia Teresinha Sfoggia, Iganci, João Ricardo Vieira & Trovó, Marcelo, 2023, A nomenclatural and taxonomic review of the Campanulaceae described in Vellozo’s Flora Fluminensis, Phytotaxa 589 (2), pp. 191-197 : 194

4. Lobelia fistulosa Vellozo (1831: 157) .

Lectotype (designated by Rollim et al. 2022):— BRAZIL. São Paulo, “ Habitat medit. Loca humentia ad ripas rivulorum ”. [icon ined.] “Syng. Monog.: LOBELIA fistulosa Tab. 157” (Manuscript Sect. of Torre do Tombo, Lisbon) [PT/TT/MSLIV/2778 available at https://digitarq.arquivos.pt/viewer?id=7792203], and published by Vellozo ( Fl. Flumin. Icon. 8: t. 157. 1831 ) .

Notes:—Vellozo’s plate ( Vellozo 1831, v. 8: t. 157) accurately illustrates the main diagnostic character of Lobelia fistulosa : its large conspicuous erect lanceolate bracts, often covering the pedicels ( Fig. 1 E, F ). Other characteristics that allow us to recognize the species in the illustration are the growth form, leaf shape, and flower morphology. Lobelia fistulosa is endemic to Brazil and is found in the states of Espírito Santo, Minas Gerais, Rio de Janeiro, and São Paulo. It occurs mainly in High Altitude Grasslands, Highland Rocky Fields , and Wetlands in mountainous regions at altitudes of over 1000 m, but occasionally also found at altitudes of 100–500 m ( Rollim et al. 2020).

Lobelia fistulosa belongs to L. section Rhynchopetalum ( Lammers 2011) . In a recent nomenclatural treatment of the South American clade of this section ( Rollim et al. 2022) the lectotype of this species has been designated. The habitat of Vellozo’s collection was described ( Vellozo 1881) as a humid place at stream edges and the locality as the border area between the states of São Paulo and Rio de Janeiro. Since the species is known to occur in mountainous areas ( Vieira 1988, Rollim et al. 2022), its most likely location must be in the municipality of Cunha, past the mountain top of the Serra da Bocaina.

Figures

FIGURE 1. Representatives of Campanulaceae described in Vellozo’s Flora Fluminensis.A. Habit of Lobelia camporum. B. L. camporum detail of flowers. C. Habit of Centropogon cornutus. D. Lateral view of C. cornutus flower. E. Habit of L. fistulosa. F. Bracts and flowers details. G. Habit of Siphocampylus corymbifer. H. Lateral view of S. corymbifer flower. I. Habit of S. fluminensis. J. S. fluminensis flower detail. Photos A–B, I–J: Marcelo Trovó, C–D: Isis Rollim, E–H: Guilherme Coelho.