A Phylogenetic Analysis of Cunoniaceae

Hufford, Larry; Dickison, William C.

doi:10.2307/2419516

Cited by 46 publications

(38 citation statements)

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“…A phylogenetic analysis of the Cunoniaceae, including Eucryphia, by Hufford and Dickison (1992) supported this hypothesis, based on the possession of a decussate leaf arrangement. This character alone has been suggested to be the unifying monophyletic feature of all species in the Cunoniaceae (Kalkman 1988;Dickison and Rutishauser 1990).…”

Section: Cladistic Analysis Of the Extant Species Outgroupmentioning

confidence: 86%

A phylogenetic analysis of the Eucryphiaceae

Taylor¹,

Hill²

1996

Aust. Systematic Bot.

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A range of characters from modern and fossil species are used to present a phylogeny of Eucryphia Cav. (Eucryphiaceae). Amongst the extant taxa, the Australian species form a monophyletic group, but the South American species are paraphyletic. This, coupled with their present-day distribution and the fossil record, supports the view that Eucryphia had a Gondwanic origin at least 50 million years prior to the disruption of Australia from Antarctica. Although based on a limited data set with only vegetative characters available, the inclusion of the fossil members of Eucryphiaceae has demonstrated several trends that have been inferred to represent a response to the changing climatic conditions of the Cenozoic. These responses have included a general decrease in leaf size, loss of serrate leaf margins and the development of peltiform cuticular extensions on the abaxial leaf surface. These extensions may aid in decreasing transpirational water loss andlor increasing frost resistance. IntroductionEucryphiaceae are a family of trees and shrubs containing the single genus Eucryphia Cav. The morphology of both extant and fossil members of the family has been well documented, but this information has not been applied to determining the phylogenetic relationships among the species. It is the aim of this paper to present a phylogenetic analysis of modem Eucryphiaceae, using vegetative and floral characters, and to use this information to determine the phylogeny of the extant and extinct species.

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Section: Cladistic Analysis Of the Extant Species Outgroupmentioning

confidence: 86%

A phylogenetic analysis of the Eucryphiaceae

Taylor¹,

Hill²

1996

Aust. Systematic Bot.

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“…The only character not scored by us was the number of ovules per carpel, for which data were taken from Hoogland (1979 , unpublished manuscript, andHopkins andHoogland 2002 ). Literature sources used to suggest possible characters included these works by Hoogland as well as Bradford and Barnes (2001) , Bradford et al (2004) , Dickison (1984) , Rutishauser and Dickison (1989) , Hufford and Dickison (1992) , Hyland and Whiffin (1993) , and Smith (1952Smith ( , 1985.…”

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confidence: 99%

A Molecular and Morphological Survey of Generic Limits of Acsmithia and Spiraeanthemum (Cunoniaceae)

Pillon¹,

Hopkins²,

Munzinger³

et al. 2009

Systematic Botany

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A phylogenetic analysis was conducted on the tribe Spiraeanthemeae (Cunoniaceae) to clarify relationships of Acsmithia and Spiraeanthemum. Three molecular markers, one plastid region (trnL intron and trnL-trnF intergenic spacer) and two nuclear single copy genes (ncpGS and PHYC), were sequenced for this purpose. The independent analysis of the three markers and a combined analysis all showed that Acsmithia is paraphyletic since Spiraeanthemum is nested within it. A morphological survey of all species in the tribe confirmed the existence of two groups within Acsmithia. One comprises the species from Australia, New Guinea, and A. densiflora from New Caledonia and is characterised by multiple ovules per carpel. The other group contains all the remaining New Caledonian species plus A. vitiensis from Fiji and is characterized by a single ovule per carpel. The study shows that characters previously used to distinguish Acsmithia and Spiraenthemum, phyllotaxy and sexual system, are homoplasious as in several other groups of Cunoniaceae. A broad circumscription of the genus Spiraeanthemum is adopted here that includes the species formerly placed in Acsmithia. Two new combinations are proposed: Spiraeanthemum collinum and Spiraeanthemum meridionale. Spiraeanthemum austrocaledonicum is considered a synonym of Spiraeanthemum densiflorum.

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“…It has been placed near the Rosaceae (Bentham and Hooker 1862), in the monotypic Eucryphiaceae (Focke 1895) or nested in a broad Cunoniaceae (Bausch 1938;Cronquist 1981;Thorne 1983;Takhtajan 1987;Hufford 1992). This latter assignment has been supported by phylogenetic analyses using morphological characters (Hufford 1992;Hufford and Dickison 1992), and rbcL gene (Chase et al 1993;Morgan and Soltis 1993) and 18S rDNA sequences (Soltis et al 1997). On this basis, Eucryphia is accepted herein to be a genus within a broad Cunoniaceae.…”

Section: Introductionmentioning

confidence: 83%

Eucryphia (Cunoniaceae) reproductive and leaf macrofossils from Australian cainozoic sediments

Barnes¹,

Jordan²

2000

Aust. Systematic Bot.

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The first fossil capsule of Eucryphia,E. reticulata R.W.Barnes & G.J.Jord. sp. nov.,is described from Lea River (Early Oligocene), and, like capsules of the twoextant South American species of E. glutinosa (Poepp. etEndl.) Baill. and E. cordifolia Cav., is large and has arelatively large number of valves. The capsule occurs with aEucryphia leaf macrofossil that was probably a leaflet from a compound leaf as it is highly falcate. The leaflet may be derived fromthe same parent plant as E. reticulata but in theabsence of an organic connection it is described as a new species,E. leaensis R.W.Barnes & G.J.Jord. sp. nov.Additional leaf macrofossil specimens of E. aberensisR.S.Hill from the type locality (Loch Aber; Middle–Late Eocene) and anew locality record for the species, Little Rapid River (Early Oligocene),indicate that the species had compound leaves formed by serrate and entiremargin leaflets. Another incomplete Eucryphia capsuleoccurs at Little Rapid River (Early Oligocene) but it is too poorly preservedto assign it to an extant or extinct species. It may be derived from the sameparent plant asE. aberensis, with which it occurs, but cannot be confirmed as there is no organic connection. A new leaf macrofossil with serrate margins, E. mucronata R.W.Barnes & G.J.Jord. sp. nov., is also described from ?Latest Eocene–EarlyOligocene sediments at Wilson’s Creek, central Tasmania. Leafmacrofossils previously assigned to E. aff.milliganii from Early Pleistocene sediments at RegattaPoint in western Tasmania are shown to be conspecific with the two extant Tasmanian species, E. lucida (Labill.) Baill. andE. milliganii Hook.f. ssp.milliganii on the basis of foliar hair distribution patterns and density. The oldest fossil Eucryphiaspecies, E. falcata R.S. Hill (Lake Bungarby; LatePaleocene), had compound leaves formed by leaflets with serrate margins, whichis possibly the plesiomorphic condition for all Cunoniaceae genera. WithinEucryphia, there has been an evolutionary trend towardssimple leaves with entire margins and well-developed peltiform cuticular extensions.

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A Phylogenetic Analysis of Cunoniaceae

Cited by 46 publications

References 0 publications

A phylogenetic analysis of the Eucryphiaceae

A phylogenetic analysis of the Eucryphiaceae

A Molecular and Morphological Survey of Generic Limits of Acsmithia and Spiraeanthemum (Cunoniaceae)

Eucryphia (Cunoniaceae) reproductive and leaf macrofossils from Australian cainozoic sediments

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