Begonia sect. Apteron C.DC.

Moonlight, Peter. W., Jara-Muñoz, Orlando A., Purvis, David A., Delves, Jay, Allen, Josh P. & Reynel, Carlos, 2023, The genus Begonia (Begoniaceae) in Peru, European Journal of Taxonomy 881, pp. 1-334 : 31

publication ID	https://doi.org/10.5852/ejt.2023.881.2175
persistent identifier	https://treatment.plazi.org/id/03B26B4B-FFBB-FFE7-FDB2-FD2CAF55EEEE
treatment provided by	Felipe (2023-07-24 12:32:17, last updated by Tatiana 2023-07-26 12:59:36)
scientific name	Begonia sect. Apteron C.DC.
status

Treatment

Bulletin de l’Herbier Boissier II 8 (5): 326 ( de Candolle 1908).

– Type: holotype: Begonia exalata C.DC.

Notes

Begonia exalata is the type species of B. sect. Apteron, which was described by Casimir de Candolle ( de Candolle 1908). The section was synonymised with B. sect. Knesebeckia by Doorenbos et al. (1998) because it was separated by only one character: its fruit lacking wings. An ongoing revision of this section (Moonlight in prep.) demonstrates that B. exalata is allied to three other species: B. microcarpa A.DC. , B. pastoensis , and B. pedemontana sp. nov. These species are phylogenetically distinct from the rest of B. sect. Knesebeckia (Moonlight et al. 2018) and can be distinguished as caulescent herbs that lack a tuber or rhizome and root at the lower nodes. We reinstate B. sect. Apteron to include these four species, including two found in Peru.

References

de Candolle A. C. P. 1908. Begoniaceae novae. Bulletin de L'Herbier Boissier II 8 (5): 309 - 328.

Doorenbos J., Sosef M. S. M. & de Wilde J. J. F. E. 1998. The Sections of Begonia: including descriptions, keys and species lists (Studies in Begoniaceae VI). Wageningen Agricultural University Papers 98 (2): 1 - 266. https: // edepot. wur. nl / 282968