&lt;p&gt;&lt;strong&gt;Phylogenetic position of &lt;em&gt;Trocholejeunea&lt;/em&gt; and a new infrageneric classification of &lt;em&gt;Acrolejeunea&lt;/em&gt; (Lejeuneaceae, Marchantiophyta)&lt;/strong&gt;&lt;/p&gt;

Wang, Jian; Gradstein, S. Robbert; Shi, Xueqin; Zhu, Rui‐Liang

doi:10.11646/bde.36.1.3

Cited by 19 publications

(7 citation statements)

References 43 publications

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“…(3) Spruceanthus. -This is a small amphi-Pacific tropical genus of eight extant species, seven from Asia and Australia and one from Ecuador Wang & al., 2014aWang & al., , 2015. A fossil species, S. polonicus Grolle, has been described from Baltic amber of Central Europe (Grolle, 1985).…”

Section: Discussionmentioning

confidence: 99%

“…A fossil species, S. polonicus Grolle, has been described from Baltic amber of Central Europe (Grolle, 1985). The genus is characterized by (1) robust stems with a weakly enlarged epidermis and occasional presence of a subepidermis, (2) microphyllous branches at stem bases, (3) isodiametric or elongate leaf cells with simple-triangular to triradiate trigones, (4) homogeneous oil bodies (observed in S. mamillilobulus, S. polymorphus, S. semirepandus, S. theobromae and S. thozetianus), (5) lejeuneoid innovations, and (6) perianths with 5-12 smooth keels (Gradstein, 1994;Zhu & So, 2001;Wang & al., 2015). In our analyses, Spruceanthus is sister to Ptychanthus, Tuzibeanthus and Dibrachiella; this relationship was also found by Wilson & al.…”

Section: Discussionmentioning

confidence: 99%

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Phylogeny and taxonomy of Archilejeunea (Marchantiophyta: Lejeuneaceae) based on molecular markers and morphology

Shi

Gradstein

Zhu

2015

TAXON

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Archilejeunea, a pantropical liverwort genus of about 22 species, has not been revised worldwide and recent phylogenetic study showed that the genus is not monophyletic. We addressed phylogenetic relationships of Archilejeunea by using nuclear (ITS) and chloroplast (rbcL, trnL-F) DNA regions. Bayesian, likelihood and parsimony phylogenetic analyses of a broad sampling of the group resolved the species in three robust clades, which are morphologically distinct. Based on our molecular phylogenetic results, we split Archilejeunea into two distantly related genera, Archilejeunea s.str. with six species and Dibrachiella stat. nov. with nine species. Both groups have tropical Afro-American distributions but the range of Archilejeunea is much more restricted than that of Dibrachiella. Archilejeunea is sister to Verdoornianthus from Amazonia and Dibrachiella is member of a clade together with the paleotropical Ptychanthus and Tuzibeanthus, and the pantropical Spruceanthus. Five species previously placed in Archilejeunea (A. abbreviata, A. amakawana, A. kiushiana, A. olivacea, A. planiuscula) are resolved in Spruceanthus, which is morphologically very similar to Dibrachiella. Fifteen new combinations and one replacement name are proposed. Ancestral state reconstruction showed that morphological characters traditionally used to define genera of Ptychanthoideae are highly homoplasious. Spruceanthus differs from Dibrachiella in possessing homogeneous oil bodies.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Phylogeny and taxonomy of Archilejeunea (Marchantiophyta: Lejeuneaceae) based on molecular markers and morphology

Shi

Gradstein

Zhu

2015

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“…The methodology of Wang et al (2014) was used to infer topological conflicts between different datasets. A threshold with a BS value ≥ 70% and a PP value ≥ 0.95, was applied as an indication of strongly supported incongruence between different data sets.…”

Section: Methodsmentioning

confidence: 99%

Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands

Block¹,

Rakotonasolo²,

Ntore³

et al. 2018

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The taxonomic positions and phylogenetic relationships of six Pavetteae species endemic to Madagascar were tested with a phylogenetic study of the Afro-Madagascan representatives of the tribe Pavetteae based on sequence data from six markers rps16, trnT-F, petD, accD-psa1, PI and ITS. The six species were resolved into four well-supported and morphologically distinct clades which we here formally recognise at generic level. The new genera are the monospecific Exallosperma and Pseudocoptosperma, each with a single species, and Helictosperma and Tulearia, each with two species. Each genus is characterised by one or more autapomorphies or by a unique combination of plesiomorphic characters. Mostly, the distinguishing characters are found in fruit and seed; Exallosperma differs from all other Pavetteae genera by the fruit consisting of two stony pyrenes, each with a single laterally flattened seed with irregularly distributed ridges on the surface; Helictosperma is unique by its single spherical seed rolled-in on itself in the shape of a giant pill-millipede. Pseudocoptosperma is characterised by the combination of three ovules pendulous from a small placenta and triangular stipules with a strongly developed awn, whereas Tulearia is characterised by robust sericeous flowers, small leaves, uni- or pauciflorous inflorescences and fruits with two pyrenes, each with a single ruminate seed.The four new genera show marked adaptations to the dry habitats in which they grow. They represent multiple radiations into drylands and highlight the importance of the dry forest and scrub vegetation in western, southern and northern Madagascar for plant biodiversity. The description of the four new genera shows that the tribe Pavetteae exhibits the same pattern as many plant groups in Madagascar, which are characterised by a high proportion of endemic genera comprising a single or a few species.In the four new genera, five new species are described and one new combination is made: Exallosperma longiflora De Block; Helictosperma malacophylla (Drake) De Block, Helictosperma poissoniana De Block, Pseudocoptosperma menabense Capuron ex De Block; Tulearia capsaintemariensis De Block and Tulearia splendida De Block.

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“…Gênero pantropical representado por 21 espécies, das quais duas ocorrem no Brasil (Costa & Peralta 2015;Wang et al 2014;Söderström et al 2016). Crescem principalmente sobre casca de árvores, raramente sobre rochas, podem ser encontradas em ambientes de pastagens, savanas, vegetação de cerrado, mata ciliar e no dossel de florestas tropicais, pois habitam preferencialmente lugares secos e com alta exposição solar (Gradstein 1994;Gradstein et al 2001).…”

Section: Lejeuneaceaeunclassified

Flora das cangas da Serra dos Carajás, Pará, Brasil: Lejeuneaceae

Ilkiu–Borges

Oliveira-da-Silva

2018

Rodriguésia

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Resumo Este é um tratamento taxonômico com descrição, ilustração e comentários morfológicos para as espécies de Lejeuneaceae das áreas de canga na Serra dos Carajás, estado do Pará. Foram identificados 12 gêneros e 22 espécies, sendo Lejeunea oligoclada é um novo registro para a região Norte do Brasil e Lejeunea angusta e Schiffneriolejeunea amazonica novos registros para o estado do Pará.

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<p><strong>Phylogenetic position of <em>Trocholejeunea</em> and a new infrageneric classification of <em>Acrolejeunea</em> (Lejeuneaceae, Marchantiophyta)</strong></p>

Cited by 19 publications

References 43 publications

Phylogeny and taxonomy of Archilejeunea (Marchantiophyta: Lejeuneaceae) based on molecular markers and morphology

Phylogeny and taxonomy of Archilejeunea (Marchantiophyta: Lejeuneaceae) based on molecular markers and morphology

Four new endemic genera of Rubiaceae (Pavetteae) from Madagascar represent multiple radiations into drylands

Flora das cangas da Serra dos Carajás, Pará, Brasil: Lejeuneaceae

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