Androecial evolution in Caryophyllales in light of a paraphyletic Molluginaceae

Santos, Patrícia dos; Glover, Beverley J.; Craene, Louis Ronse De

doi:10.3732/ajb.1300083

Cited by 32 publications

(26 citation statements)

References 32 publications

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Section: Discussionmentioning

confidence: 99%

“…The position of Limeum (Limeaceae) is weakly sup ported, but it may be sister to the Globular Inclusion Clade (Brockington & al., 2013). Lophiocarpus and Corbichonia in Lophiocarpaceae are together sister to the rest of the Raphid Clade (Brockington & al., 2013). Molluginaceae in its new restricted sense is monophyletic and sister to the Portulacineae clade (Arakaki & al., 2011;Brockington & al., 2011).…”

Section: Discussionmentioning

confidence: 99%

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Phylogeny and generic delimitation in Molluginaceae, new pigment data in Caryophyllales, and the new family Corbichoniaceae

Thulin

Moore

El‐Seedi

et al. 2016

TAXON

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The circumscription of Molluginaceae has changed radically in recent years, with Corbichonia being moved to Lophiocarpaceae, Limeum to Limeaceae, Macarthuria to Macarthuriaceae and all species of Hypertelis, except the type, to Kewa in Kewaceae. In a broad analysis of core Caryophyllales using plastid trnK‐matK and rbcL sequences, the position of Molluginaceae in a strict sense as sister to the Portulacineae clade is corroborated, as are the positions of Corbichonia, Limeum and Kewa outside the family. The phylogeny of Molluginaceae is reconstructed based on trnK‐matK and nuclear ITS sequences of about half of the currently recognized species in the family and with representatives from all recognized genera. Mollugo is found to be polyphyletic and a new taxonomy for the family with 11 genera is proposed. Mollugo in its new restricted sense is a mainly American genus of about 15 species, including M. ulei comb. nov., previously placed in the monotypic Glischrothamnus. The Australian and Asian genus Trigastrotheca is resurrected for T. molluginea, T. pentaphylla comb. nov. and T. stricta comb. nov. The name Paramollugo nom. nov. is proposed for the Mollugo nudicaulis group and the combinations P. angustifolia comb. nov., P. cuneifolia comb. nov., P. decandra comb. nov., P. deltoidea comb. nov., P. navassensis comb. nov. and P. nudicaulis comb. nov. are made. Hypertelis is expanded to include, besides the type H. spergulacea, also H. cerviana comb. nov., H. fragilis comb. nov., H. umbellata comb. nov. and H. walteri comb. nov. In Pharnaceum, the new combination P. namaquense comb. nov. is made, Hypertelis longifolia is treated as a synonym of P. lineare and Mollugo tenella as a synonym of P. subtile. Corbichonia is proposed to be treated as a family of its own, Corbichoniaceae fam. nov. Several names are lectotypified, including the Linnaean Mollugo pentaphylla and M. stricta. An anthocyanin is reported for the first time from Simmondsiaceae. The detection of anthocyanins in members of Kewaceae and Molluginaceae agree with previous reports and corroborate the view that these families represent reversals from betalains to anthocyanins. The report of an anthocyanin in Limeaceae, previously regarded as unpigmented, apparently represents a newly detected reversal from betalains to anthocyanins in this family.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Phylogeny and generic delimitation in Molluginaceae, new pigment data in Caryophyllales, and the new family Corbichoniaceae

Thulin

Moore

El‐Seedi

et al. 2016

TAXON

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“…Lophiocarpaceae , Corbichonia decumbens (Forssk.) Exell (Brockington et al ., ); Lophiocarpus polystachyus Turcz. (Eckardt, , fig.…”

Section: Resultsmentioning

confidence: 99%

Patterns of angiospermy development before carpel sealing across living angiosperms: diversity, and morphological and systematic aspects

Endress

2015

Bot J Linn Soc

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Almost all angiosperms are angiospermous, i.e. the ovules are enclosed in carpels at anthesis and during seed development, but angiospermy develops in different ways across angiosperms. The most common means of carpel closure is by a longitudinal ventral slit in carpels that are partly or completely free. In such carpels, the closure process commonly begins at midlength of the prospective longitudinal slit and then proceeds downward and upward. Closure by a transverse slit is rarer, but it is prominent in groups of the ANITA grade and in a few early branching monocots (some Alismatales) and some early branching eudicots (a few Ranunculaceae and Nelumbonaceae), in these eudicots combined with a more or less developed longitudinal slit. In all these cases the carpels have a single ovule in ventral median position. In ANITA lines with pluriovulate carpels, there is only a short longitudinal slit in the uniformly ascidiate carpels. In carpels with a unifacial style the closure area is narrow; this pattern is rare and scattered mainly in some wind-pollinated monocots and eudicots. In most angiosperms the carpels become closed before the ovules are visible from the outside of the still incompletely closed carpels (early carpel closure). This is notably the case in the ANITA grade and magnoliids. Delayed carpel closure, with the ovules visible before the carpels are closed, is much rarer and is concentrated in a few monocots (mainly some Alismatales and some Poales) and a few eudicots (mainly a few Ranunculales and many Caryophyllales, and scattered in some other eudicots). A kind of delayed carpel closure (with the placenta visible before closure but mostly not the ovules) also occurs in syncarpous gynoecia with a free central placenta. Most gynoecia with a free central placenta occur in the superasterids. In such gynoecia the individual carpel tips are not differentiated but the opening in young gynoecia has the shape of a circular diaphragm. In this case, when ovary septa and free carpel tips are missing, the number of carpels is sometimes unclear (Primulaceae, Lentibulariaceae, some Santalaceae). Extremely ascidiate carpels are concentrated in the ANITA grade, a few magnoliids and some early branching monocots. Aspects of potential advantages of plicate vs. ascidiate carpels with regard to flexibility of pollen tube transmitting tract differentiation are discussed.

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“…Regarding the large number of differences between Lophiocarpus and Corbichonia, the relationship of the latter genus to Lophiocarpaceae must be checked. (Brockington et al 2013) thyrsoid consisting of lateral dichasia (Eckardt 1974) Flower morphology sepals (5) to 8 (Sukhorukov et al 2015) verrucose, rarely ribbed, completely or partially with unlignified cells, layers 4 to 10 in inflated parts or ribs (Sukhorukov et al 2015) Seed arillus + (strophiole) absent …”

Section: Notes On the Composition Of Lophiocarpaceae Familymentioning

confidence: 99%

“…Recently, the separate position of Corbichonia from Aizoaceae or Molluginaceae was discovered on the basis of molecular data, and it was placed in the so-called 'Globular Inclusion' clade as a sister group to Lophiocarpus Turczaninow (1843: 55) (Cuénoud et al 2002). The latter genus forms its own family Lophiocarpaceae Doweld & Reveal (2008: 416), which now consists of two genera: core genus Lophiocarpus and Corbichonia automatically included in this family (Schäferhoff et al 2009, Brockington et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Taxonomy and chorology of Corbichonia (Lophiocarpaceae s.l.) with further description of a new species from Southern Africa

Sukhorukov¹,

Kushunina²

2015

Phytotaxa

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A re-examination of the herbarium material has allowed to describe a new species, Corbichonia exellii, occurring in Southern Africa (Angola, Namibia and South Africa). C. exellii represents the third species in the genus. Morphological differences between all three Corbichonia species (C. decumbens, C. rubriviolacea, and C. exellii) are provided. The description of the genus is defined using the newly discovered characters (reproductive features). The taxonomy of all Corbichonia species (synonyms included) is provided, as well as maps for all species. The lectotypes of Orygia decumbens (basionym of Corbichonia decumbens) and O. mucronata (synonym of C. decumbens) are designated on specimens preserved, respectively, at BM and K. The genus Corbichonia, recently placed in Lophiocarpaceae, is markedly different from the core genus Lophiocarpus on the basis of embryological, morphological and carpological characters, and deserves further investigation concerning its taxonomic status.

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Androecial evolution in Caryophyllales in light of a paraphyletic Molluginaceae

Cited by 32 publications

References 32 publications

Phylogeny and generic delimitation in Molluginaceae, new pigment data in Caryophyllales, and the new family Corbichoniaceae

Phylogeny and generic delimitation in Molluginaceae, new pigment data in Caryophyllales, and the new family Corbichoniaceae

Patterns of angiospermy development before carpel sealing across living angiosperms: diversity, and morphological and systematic aspects

Taxonomy and chorology of Corbichonia (Lophiocarpaceae s.l.) with further description of a new species from Southern Africa

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