Campanulaceae

Lammers, Thomas G.

doi:10.1007/978-3-540-31051-8_5

Cited by 57 publications

(69 citation statements)

References 37 publications

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“…has been viewed as the largest group of Hawaiian plants derived from a single ancestor (Carlquist 1970(Carlquist , 1974Lammers 1999;Wagner 1999). Our results imply that the lobeliad radiation is even more dramatic, involving four more genera/sections, 19 more species and a much wider range of growth forms and habitats.…”

Section: Resultsmentioning

confidence: 73%

“…The unusual combination of fleshy fruits, woody habit and axillary inflorescences led most previous researchers to conclude that Cyanea, Clermontia and Delissea formed a clade and were closely related to groups in tropical America (Burmeistera and Centropogon) or Borneo (Pratia sect. Colensoa) which share all or most of these traits (Rock 1919;Brown 1921;Stone 1967;Carlquist 1970Carlquist , 1974Lammers 1999). The exclusion of Centropogon, Burmeistera and Pratia as close relatives of Hawaiian Clermontia, Cyanea and Delissea-despite their shared possession of fleshy fruits, woody habit and (in Pratia) axillary inflorescences-graphically illustrates the problems of assessing phylogeny based on characters subject to strong selection pressure, especially in insular groups that have undergone extensive radiation and diverged sharply from mainland ancestors (Givnish & Sytsma 1997;Givnish 1998;Lindqvist & Albert 2002;Mort et al 2002;Nepokroeff et al 2003;Schneider et al 2005).…”

Section: Discussion (A) Monophyly and Convergence/divergencementioning

confidence: 99%

“…We compiled data on the geographical distribution and elevational range of all currently recognized species of native Hawaiian lobeliads from Lammers (1996Lammers ( , 1998Lammers ( , 1999Lammers ( , 2004 and Lammers & Proctor (2004); additional data on certain rare species were provided by D. Lorence, H. Oppenheimer, F. Duvall and C. Imada. We compiled data on the numbers of species from each genus on each of the eight large islands (N`ihau to Hawai`i), as well as island age, elevation and area ( Walker 1990;Clague 1996;Price & Wagner 2004).…”

Section: Methodsmentioning

confidence: 99%

“…have long been viewed as one of the most spectacular examples of adaptive radiation in plants (Rock 1919;Carlquist 1970Carlquist , 1974Mabberley 1974Mabberley , 1975Givnish et al 1995Givnish et al , 2004Givnish 1998Givnish , 1999aLammers 1999). They represent the largest family of Hawaiian angiosperms, comprising one-eighth of the native flora of the most isolated archipelago on the Earth ( Wagner 1999).…”

Section: Introductionmentioning

confidence: 99%

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Origin, adaptive radiation and diversification of the Hawaiian lobeliads (Asterales: Campanulaceae)

et al. 2008

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The endemic Hawaiian lobeliads are exceptionally species rich and exhibit striking diversity in habitat, growth form, pollination biology and seed dispersal, but their origins and pattern of diversification remain shrouded in mystery. Up to five independent colonizations have been proposed based on morphological differences among extant taxa. We present a molecular phylogeny showing that the Hawaiian lobeliads are the product of one immigration event; that they are the largest plant clade on any single oceanic island or archipelago; that their ancestor arrived roughly 13 Myr ago; and that this ancestor was most likely woody, wind-dispersed, bird-pollinated, and adapted to open habitats at mid-elevations. Invasion of closed tropical forests is associated with evolution of fleshy fruits. Limited dispersal of such fruits in wet-forest understoreys appears to have accelerated speciation and led to a series of parallel adaptive radiations in Cyanea, with most species restricted to single islands. Consistency of Cyanea diversity across all tall islands except Hawai`i suggests that diversification of Cyanea saturates in less than 1.5 Myr. Lobeliad diversity appears to reflect a hierarchical adaptive radiation in habitat, then elevation and flower-tube length, and provides important insights into the pattern and tempo of diversification in a species-rich clade of tropical plants.

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Section: Resultsmentioning

confidence: 73%

Section: Discussion (A) Monophyly and Convergence/divergencementioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Origin, adaptive radiation and diversification of the Hawaiian lobeliads (Asterales: Campanulaceae)

et al. 2008

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“…Morphologically Peracarpa is highly distinct from taxa in the North American Heterocodon-Githopsis clade. Peracarpa carnosa is a delicate stoloniferous perennial herb with petiolate leaves and a strikingly long and slender peduncle, whereas taxa in the Heterocodon-Githopsis clade are annual herbaceous plants with a more or less erect stem, sessile leaves, and sessile or short-pedicellate flowers (Lammers 2007; also see Table 1). With only the weak support of the Peracarpa-Heterocodon-Githopsis clade and their distinct morphological differences, Peracarpa may not be the direct sister to the North American HeterocodonGithopsis clade (Fig.…”

Section: Biogeographic History Of Eastern Asian Homocodon and Peracarpamentioning

confidence: 99%

Phylogenetic assessment and biogeographic analyses of tribe Peracarpeae (Campanulaceae)

Zhou

Wen

et al. 2011

Plant Syst Evol

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Peracarpeae is a small tribe consisting of three genera: Homocodon, Heterocodon and Peracarpa, with a disjunct distribution between eastern Asia and western North America. Homocodon is endemic to southwestern China and was previously placed in the western North American genus Heterocodon. Our phylogenetic analysis using four plastid markers (matK, atpB, rbcL and trnL-F) suggests the polyphyly of Peracarpeae. Homocodon is sister to a clade consisting of the eastern Asian Adenophora, Hanabusaya and species of Campanula from the Mediterranean region and North America, rather than forming a clade with Heterocodon. Homocodon and its Eurasia relatives are estimated to have diverged in the early Miocene (16.84 mya, 95% HPD 13.35-21.45 mya). The eastern Asian Peracarpa constitutes a clade with the North American Heterocodon, Githopsis and three species of Campanula, supporting a disjunction between eastern Asia and North America in Campanulaceae. The Asian-North American disjunct lineages diverged in the early Miocene (16.17 mya,. The biogeographic analyses suggest that Homocodon may be a relict of an early radiation in eastern Asia, and that Peracarpa and its closest North American relatives most likely originated from a Eurasian ancestor.

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Campanulaceae Juss.

2012

Toxic Plants of North America

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Campanulaceae

Cited by 57 publications

References 37 publications

Origin, adaptive radiation and diversification of the Hawaiian lobeliads (Asterales: Campanulaceae)

Origin, adaptive radiation and diversification of the Hawaiian lobeliads (Asterales: Campanulaceae)

Phylogenetic assessment and biogeographic analyses of tribe Peracarpeae (Campanulaceae)

Campanulaceae Juss.

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