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isotypi: L, PDA)., typ. cons. prop. Morinda citrifolia L. is one of the three species that Linnaeus (Sp. Pl.: 176. 1753) included in his genus Morinda L. In the protologue of M. citrifolia, he provided the phrase name (diagnosis),... more
isotypi: L, PDA)., typ. cons. prop. Morinda citrifolia L. is one of the three species that Linnaeus (Sp. Pl.: 176. 1753) included in his genus Morinda L. In the protologue of M. citrifolia, he provided the phrase name (diagnosis), "Morinda arborea, pedunculis solitariis", which is uninformative with respect to characters that distinguish M. citrifolia and many other species of Morinda sensu Razafimandimbison & al. (in Molec. Phylog. Evol. 52: 879–886. 2009). The original elements that contributed to Lin-naeus's concept of M. citrifolia included: a plate of Coda-pilava in H.A. van Rheede's Hortus Indicus Malabaricus (Hort. Malab. 1: 97, Fig. 52. 1678), a reference to J. Ray's Historiae Plantarum (Raj. Hist. 2: 1442. 1693), and a reference to Linnaeus's own Flora Zeylanica (Fl. Zeyl.: 82. 1747). The Flora Zeylanica entry is based on the draw-ings and specimens in Paul Hermann's herbarium now at the BM. It contains three drawings of Morinda (Volume 5, foli...
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We investigated how fruit types, or combinations of fruit types and life forms, affect species number in the large, mostly tropical plant family Rubiaceae. The aim was to test the hypothesis that animal dispersal promotes species... more
We investigated how fruit types, or combinations of fruit types and life forms, affect species number in the large, mostly tropical plant family Rubiaceae. The aim was to test the hypothesis that animal dispersal promotes species diversification in plants. Information ...
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SUBFAMILIAL AND TRIBAL RELATIONSHIPS IN THE RUBIACEAE BASED ON rbcL SEQUENCE DATA1 Birgitta Bremer2, Katarina Andreasen2, and Daniel Olsson2 Abstract A parsimony analysis of rbcL sequences from 49 Rubiaceae genera (representing 23 tribes)... more
SUBFAMILIAL AND TRIBAL RELATIONSHIPS IN THE RUBIACEAE BASED ON rbcL SEQUENCE DATA1 Birgitta Bremer2, Katarina Andreasen2, and Daniel Olsson2 Abstract A parsimony analysis of rbcL sequences from 49 Rubiaceae genera (representing 23 tribes) and 7 outgroup ...
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Page 1. Backlund & al. Phylogeny of Paederieae (Rubiaceae) TAXON 56 (2) May 2007: 315328 315 INTRODUCTION The tribe Paederieae has been recognized since 1830 (de Candolle), and according to recent circumscriptions ...
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Page 1. Plant Syst. Evol. 225:43-72 (2000) Plant Systematics and Evolution © Springer-Verlag 2000 Printed in Austria Phylogeny and classification of the subfamily Rubioideae (Rubiaceae) B. Bremer 1 and J.-F. Manen 2 1Department ...
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... Genet dynamics of the clonal plant Rubus saxatilis OVE ERIKSSON & BIRGITTA BREMER* Department of Botany, Stockholm University, S-106 91 Stockholm and *Department of Systematic Botany, Uppsala University, Box 541, S-751 21,... more
... Genet dynamics of the clonal plant Rubus saxatilis OVE ERIKSSON & BIRGITTA BREMER* Department of Botany, Stockholm University, S-106 91 Stockholm and *Department of Systematic Botany, Uppsala University, Box 541, S-751 21, Uppsala, Sweden Summary ...
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... Cephaelis affinis Standl.) and P. ipecacuanha (Brot.) Stokes, had been shown by Nepokroeff et al. (1999) to be closely related and sister to Geophila and Hymenocoleus; Andersson (2002b) found a third species, P. guianensis Rusby... more
... Cephaelis affinis Standl.) and P. ipecacuanha (Brot.) Stokes, had been shown by Nepokroeff et al. (1999) to be closely related and sister to Geophila and Hymenocoleus; Andersson (2002b) found a third species, P. guianensis Rusby (described as Carapichea guianensis Aubl ...
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Page 1. THE GENUS ARGOSTEMMA Birgitta Bremer2 (RUBIACEAE ARGOSTEMMATEAE) IN BORNEO' ABSTRACT Argostemma is a large paleotropical genus of the tribe Argostemmateae. From Borneo 28 species are recognized. All are herbs growing in... more
Page 1. THE GENUS ARGOSTEMMA Birgitta Bremer2 (RUBIACEAE ARGOSTEMMATEAE) IN BORNEO' ABSTRACT Argostemma is a large paleotropical genus of the tribe Argostemmateae. From Borneo 28 species are recognized. All are herbs growing in rainforests. ...
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Phylogenetic relationships within the tribe Antirrhineae (Scrophulariaceae) are analysed and discussed on the basis of parsimony analyses of morphological andndhF gene sequence data. The results indicate that the tribe Antirrhineae... more
Phylogenetic relationships within the tribe Antirrhineae (Scrophulariaceae) are analysed and discussed on the basis of parsimony analyses of morphological andndhF gene sequence data. The results indicate that the tribe Antirrhineae consists of four major groups of genera, theAnarrhinum clade, theGambelia clade, theMaurandya clade, and theAntirrhinum clade. TheAnarrhinum clade, consisting of the Old World bee-pollinated generaAnarrhinum andKickxia, is sister to the
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Functional constraints are often assumed to influence the performance of nucleotide characters in phylogenetic analysis: First and second codon positions and sites of structural importance are considered to show less homoplasy. We... more
Functional constraints are often assumed to influence the performance of nucleotide characters in phylogenetic analysis: First and second codon positions and sites of structural importance are considered to show less homoplasy. We investigate the performance of rbcL characters with differential functional constraints in a cladistic analysis of the plant family Apocynaceae s.l. (Sennblad and Bremer, in prep.). Performance is measured as rescaled consistency indices (rc). We show there is no significant difference in performance between parsimony-informative sites constrained by function in the enzyme, and sites that are not. Furthermore, the substitutions in third-codon position performed significantly better than those in first and second. The variation of rc within the different classes was high, however. Consequently, there is no support for routinely applied a priori differential weighting, neither of codon positions, nor of different functional classes from the present analysis of rbcL data in the Apocynaceae s.l.
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The circumscription of theIsertieae has been under debate for a long time and recently a phylogeny based on morphological data has been presented (Andersson 1996), contradicting the classification ofRobbrecht (1988, 1993). Our... more
The circumscription of theIsertieae has been under debate for a long time and recently a phylogeny based on morphological data has been presented (Andersson 1996), contradicting the classification ofRobbrecht (1988, 1993). Our investigation of molecular ...
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Sequence data for the rbcL gene from twenty-four taxa of the families Apocy- naceae and Asclepiadaceae were cladistically analysed in order to evaluate the existing familial and subfamilial classification. The taxa sampled represent all... more
Sequence data for the rbcL gene from twenty-four taxa of the families Apocy- naceae and Asclepiadaceae were cladistically analysed in order to evaluate the existing familial and subfamilial classification. The taxa sampled represent all described subfami- lies and a majority of the described tribes. The cladistic analysis shows that the Asclepi- adaceae are nested within the Apocynaceae. An amalgamation of the two families is therefore recommended. The subfamilial classification is also in need of revision: the sub- families Plumerioideae and Apocynoideae of the current classifications are paraphyletic, as are many of the tribes. Potential subfamily candidates and characters traditionally used in the classification are discussed.