The asteralean affinity of the Mauritian Roussea (Rousseaceae)

Lundberg, Johannes

doi:10.1111/j.1095-8339.2001.tb01122.x

Cited by 16 publications

(6 citation statements)

References 47 publications

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“…Other examples of this phenomenon in the Mascarenes are Monimia Thouars (Monimiaceae) on Mauritius and Réunion (Renner & al., 2010) and perhaps Roussea Sm. (Rousseaceae) on Mauritius (Lundberg, 2001).…”

Section: Discussionmentioning

confidence: 99%

Phylogeny of the Turneraceae clade (Passifloraceae s.l.): Trans–Atlantic disjunctions and two new genera in Africa

Thulin

Razafimandimbison

Chafe

et al. 2012

TAXON

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Turneraceae, with just over 200 species in 10 genera, is today often included in a widely circumscribed Passifloraceae. The vast majority of the species are found in the New World, whereas generic diversity is largest in the Old World. According to current circumscriptions, three of the genera show trans–Atlantic disjunctions: Turnera with over 135 species in America and two species in Africa (one in the south–western and one in the north–eastern part), Piriqueta with 44 species in America and one in southern Africa, and Erblichia with one species in Central America and four in Madagascar. The phylogeny of Turneraceae is reconstructed based on DNA sequences from plastid trnL–F and nuclear ITS and sampling for all genera, including both New and Old World species for the trans–Atlantic groups to test their monophyly. The genera of Turneraceae form a strongly supported monophyletic group, the Turneraceae clade, within Passifloraceae s.l. The phylogeny is geographically structured, with one clade comprising American species only, except for the two African species of Turnera, and another clade with all other African species plus the Central American Erblichia odorata. Turnera is retrieved as monophyletic with the two African species appearing as close relatives of T. ulmifolia, the type of Turnera. The existence of a trans–Atlantic disjunction in Turnera is therefore supported. It is most likely caused by long–distance dispersal and estimated to be not older than late Miocene. In Piriqueta only the American species are supported as a monophyletic group, whereas the single African species is resolved as a member of the African clade. The trans–Atlantic disjunction in Piriqueta is therefore not supported and the African species is proposed to be placed in a genus of its own, Afroqueta gen. nov., as Afroqueta capensis comb. nov. Erblichia on Madagascar is supported as sister to Mathurina, a genus endemic to Rodrigues Island in the Mascarenes, and does not group with E. odorata in Central America, the type of Erblichia. The trans–Atlantic disjunction in Erblichia is therefore not supported either and the genus Arboa gen. nov. is proposed to accommodate the four Malagasy species, Arboa integrifolia comb. nov., Arboa berneriana comb. nov., Arboa madagascariensis comb. nov., and Arboa antsingyae comb. nov.

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Section: Discussionmentioning

confidence: 99%

Phylogeny of the Turneraceae clade (Passifloraceae s.l.): Trans–Atlantic disjunctions and two new genera in Africa

Thulin

Razafimandimbison

Chafe

et al. 2012

TAXON

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“…Brexia was classified for a long time together with Ixerba and Roussea in Brexieae (Lindley, 1830; Baillon, 1872; Engler, 1930, placed them in his Brexioideae‐Saxifragaceae). Each of these three genera is now, following molecular analyses, placed at a very different position: Brexia in Celastraceae (Simmons et al ., 2001a, b), Ixerba as Ixerbaceae in Crossosomatales (rosids) (Sosa & Chase, 2003; Matthews & Endress, 2005) and Roussea in Rousseaceae (asterids) (Lundberg, 2001). However, that Brexieae are close to Celastraceae was also pointed out by Van Tieghem (1901) and Hallier (1908).…”

Section: Systematics Of Celastralesmentioning

confidence: 99%

Comparative floral structure and systematics in Celastrales (Celastraceae, Parnassiaceae, Lepidobotryaceae)

Matthews

Endress

2005

Botanical Journal of the Linnean Society

101

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Floral morphology, anatomy and histology in the newly circumscribed order Celastrales, comprising Celastraceae, Parnassiaceae and Lepidobotryaceae are studied comparatively. Several genera of Celastraceae and Lepidobotrys (Lepidobotryaceae) were studied for the first time in this respect. Celastraceae are well supported as a group by floral structure (including genera that were in separate families in earlier classifications); they have dorsally bulged-up locules (and thus apical septa) and contain oxalate druses in their floral tissues. The group of Celastraceae and Parnassiaceae is also well supported. They share completely syncarpous gynoecia with commissural stigmatic lobes (and strong concomitant development of the commissural vascular bundles but weak median carpel bundles), only weakly crassinucellar or incompletely tenuinucellar ovules with an endothelium, partly fringed sepals and petals, protandry in bisexual flowers combined with herkogamy by the movement of stamens and anther abscission, and stamens fused with the ovary. In contrast, Lepidobotryaceae are more distant from the other two families, sharing only a handful of features with Celastraceae (not Parnassiaceae), such as pseudohermaphroditic flowers, united stamen bases forming a collar around the gynoecium and seeds with a conspicuous aril. However, all three families together are also somewhat supported as a group and share petals that are not retarded in late floral bud development, 3-carpellate gynoecia, ventral slits of carpels closed by long interlocking epidermal cells and pollen tube transmitting tissue encompassing several cell layers, both integuments usually more than two cell layers thick, and only weak or lacking floral indumentum. In some molecular analyses Celastrales form an unsupported clade with Malpighiales and Oxalidales. This association is supported by floral structure, especially between Celastrales and Malpighiales. Among Celastrales, Lepidobotryaceae especially share special features with Malpighiales, including a diplostemonous androecium with ten fertile stamens, epitropous ovules with an obturator and strong vascularization around the chalaza.

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“…Asterales are strongly supported as monophyletic and contain 12 families. Carpodetaceae are being merged with Rousseaceae (Lundberg, 2001). Cyphia , the type of Cyphiaceae, has appeared as sister to the rest of Campanulaceae (optionally including Lobeliaceae) in several recent rbcL analyses (e.g.…”

Section: Asteridsmentioning

confidence: 99%

“…Cyphia , the type of Cyphiaceae, has appeared as sister to the rest of Campanulaceae (optionally including Lobeliaceae) in several recent rbcL analyses (e.g. Kårehed et al ., 1999; Savolainen et al ., 2000a; Lundberg, 2001). However, it appears that the rbcL sequence of Cyphia hitherto used is a pseudo‐gene (Lundberg & Bremer, 2002), and re‐analysis with a new sequence places Cyphia as sister to other Lobeliaceae excluding Campanulaceae s.s. (see also Haberle, 1998).…”

Section: Asteridsmentioning

confidence: 99%

An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II

Apgii¹

2003

Botan J Linn Soc

2,309

105

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A revised and updated classification for the families of the flowering plants is provided. Newly adopted orders include Austrobaileyales, Canellales, Gunnerales, Crossosomatales and Celastrales. Pertinent literature published since the first APG classification is included, such that many additional families are now placed in the phylogenetic scheme. Among these are Hydnoraceae (Piperales), Nartheciaceae (Dioscoreales), Corsiaceae (Liliales), Triuridaceae (Pandanales), Hanguanaceae (Commelinales), Bromeliacae, Mayacaceae and Rapateaceae (all Poales), Barbeuiaceae and Gisekiaceae (both Caryophyllales), Geissolomataceae, Strasburgeriaceae and Vitaceae (unplaced to order, but included in the rosids), Zygophyllaceae (unplaced to order, but included in eurosids I), Bonnetiaceae, Ctenolophonaceae, Elatinaceae, Ixonanthaceae, Lophopyxidaceae, Podostemaceae (Malpighiales), Paracryphiaceae (unplaced in euasterid II), Sladeniaceae, Pentaphylacaceae (Ericales) and Cardiopteridaceae (Aquifoliales). Several major families are recircumscribed. Salicaceae are expanded to include a large part of Flacourtiaceae, including the type genus of that family; another portion of former Flacourtiaceae is assigned to an expanded circumscription of Achariaceae. Euphorbiaceae are restricted to the uniovulate subfamilies; Phyllanthoideae are recognized as Phyllanthaceae and Oldfieldioideae as Picrodendraceae. Scrophulariaceae are recircumscribed to include Buddlejaceae and Myoporaceae and exclude several former members; these are assigned to Calceolariaceae, Orobanchaceae and Plantaginaceae. We expand the use of bracketing families that could be included optionally in broader circumscriptions with other related families; these include Agapanthaceae and Amaryllidaceae in Alliaceae s.l., Agavaceae, Hyacinthaceae and Ruscaceae (among many other Asparagales) in Asparagaceae s.l., Dichapetalaceae in Chrysobalanaceae, Turneraceae in Passifloraceae, Erythroxylaceae in Rhizophoraceae, and Diervillaceae, Dipsacaceae, Linnaeaceae, Morinaceae and Valerianaceae in Caprifoliaceae s.l. © 2003 The Linnean Society of London, Botanical Journal of the Linnean Society, 2003, 141, 399–436.

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The asteralean affinity of the Mauritian Roussea (Rousseaceae)

Cited by 16 publications

References 47 publications

Phylogeny of the Turneraceae clade (Passifloraceae s.l.): Trans–Atlantic disjunctions and two new genera in Africa

Phylogeny of the Turneraceae clade (Passifloraceae s.l.): Trans–Atlantic disjunctions and two new genera in Africa

Comparative floral structure and systematics in Celastrales (Celastraceae, Parnassiaceae, Lepidobotryaceae)

An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II

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