In:
PhytoKeys, Pensoft Publishers, Vol. 174 ( 2021-03-05), p. 13-45
Abstract:
Lobelioideae, the largest subfamily within Campanulaceae, includes 33 genera and approximately1200 species. It is characterized by resupinate flowers with zygomorphic corollas and connate anthers and is widely distributed across the world. The systematics of Lobelioideae has been quite challenging over the years, with different scholars postulating varying theories. To outline major progress and highlight the existing systematic problems in Lobelioideae, we conducted a literature review on this subfamily. Additionally, we conducted phylogenetic and biogeographic analyses for Lobelioideae using plastids and internal transcribed spacer regions. We found that former studies have reached agreement on the southern African origin of Lobelioideae, herbaceous habit and Asian origin of giant lobelioids, the convergent evolution of giant rosette lobelioids, and lastly, the multiple cosmopolitan and independent radiation of lobelioids in Africa, Pacific Basin, and the Hawaiian Islands. Also, Apetahia Baill., Sclerotheca A.DC., and Cyanea Gaudich. are paraphyletic, while Lobelia L., Pratia Gaudich., Centropogon C.Presl, Siphocampylus Pohl, and Isotoma Lindl. are polyphyletic. The taxonomy of these genera, especially Lobelia , is particularly quite frustrating. This calls for further reappraisals using both morphological and molecular data.
Type of Medium:
Online Resource
ISSN:
1314-2003
,
1314-2011
DOI:
10.3897/phytokeys.174.59555
DOI:
10.3897/phytokeys.174.59555.figure1
DOI:
10.3897/phytokeys.174.59555.figure2
DOI:
10.3897/phytokeys.174.59555.suppl1
DOI:
10.3897/phytokeys.174.59555.suppl2
DOI:
10.3897/phytokeys.174.59555.suppl3
DOI:
10.3897/phytokeys.174.59555.suppl4
DOI:
10.3897/phytokeys.174.59555.suppl5
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2021
detail.hit.zdb_id:
2579891-1