On the occurrence of adnate underleaves and appendages in<i>Thysananthus</i>(Lejeuneaceae). Studies on the genus<i>Thysananthus</i>, 2

Sukkharak, Phiangphak; Gradstein, Robbert

doi:10.1179/jbr.2010.32.4.308

Cited by 7 publications

(10 citation statements)

References 2 publications

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“…For example, adnate underleaves are very rare in the order Porellales (Frullaniaceae, Lejeuneaceae, Porellaceae, etc.) but were recently shown to be a common feature in Thysananthus (Sukkharak & Gradstein, 2010b) (Fig. 5F).…”

Section: Discussionmentioning

confidence: 80%

“…5F). The presence of appendages at lobule bases is another example of a phylogenetically informative new morphological character (Sukkharak & Gradstein, 2010b), being resolved as synapomorphic for the T. mollis-T. montanus-T. retusus clade (Fig. 5D).…”

Section: Discussionmentioning

confidence: 99%

“…It remains to be tested whether the currently used diagnostic characters represent synapomorphies according to molecular phylogenetic reconstructions. This is also true for novel or little-known morphological characters such as appendages on leaf lobules or the adnation of underleaves to leaves (Sukkharak & Gradstein, 2010b), which may improve taxon circumscriptions.…”

Section: Introductionmentioning

confidence: 99%

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Phylogeny, taxon circumscriptions, and character evolution in the core Ptychanthoideae (Lejeuneaceae, Marchantiophyta)

Sukkharak

Gradstein

Stech

2011

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Phylogenetic relationships and character evolution in the core Ptychanthoideae (Lejeuneaceae, Marchantiophyta), with a focus on Thysananthus, are assessed based on molecular (plastid psbA–trnH, trnG, trnL–F, trnS–rps4, nrITS), morphological–anatomical, and phytochemical data. Generic relationships are molecularly well–resolved and confirm the placement of Mastigolejeunea pancheri and the monotypic Dendrolejeunea fruticosa in Thysananthus. Most morphological characters currently used to distinguish genera in Ptychanthoideae are homoplastic according to ancestral state reconstruction. Molecular and phytochemical data suggest the occurrence of polyphyletic species in Thysananthus and Mastigolejeunea. Careful study of the polyphyletic taxa revealed morphological differences between some of the intraspecific clades, which correlated with synonymized or novel species. Incongruence between plastid and ITS data in M. pancheri indicated the occurrence of a putative hybrid, the first one recorded in Lejeuneaceae and the first in liverworts inferred from phylogenetic data.

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Section: Discussionmentioning

confidence: 80%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Phylogeny, taxon circumscriptions, and character evolution in the core Ptychanthoideae (Lejeuneaceae, Marchantiophyta)

Sukkharak

Gradstein

Stech

2011

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“…Similar appendages on female bracts occur in other members of Lejeuneaceae subfam. Ptychanthoideae such as Frullanoides Raddi (1822: 13) and Thysananthus, but they have never been observed in Spruceanthus (Sukkharak & Gradstein 2010). Mizutani (1961) discussed the variation in the leaves, underleaves, female bracts and bracteoles in P. striatus and recognized two extreme forms: plants with strongly dentate leaves, underleaves, bracts and bracteoles, and plants with subentire ones.…”

Section: Discussion and Taxonomic Treatmentmentioning

confidence: 99%

New synonymy in Ptychanthus striatus (Lejeuneaceae, Marchantiophyta)

et al. 2014

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“…The presence of α-pinguisene (10) and deoxopinguisone (19), reported earlier from Gradstein, 1992) (1934), together with Dendrolejeunea fruticosa (= T. fruticosus), but this section was broken up by . Morphologically, Thysananthus mollis and T. retusus share the presence of a vitta in the leaves and appendages on the leaf lobules (Sukkharak & Gradstein, 2010b). Chemically, however, the two species seem to be quite different, T.…”

Section: Thysananthus Convolutus Lindenbmentioning

confidence: 97%

Taxonomy and Phylogeny of the Liverwort Genus Thysananthus (Marchantiophyta; Lejeuneaceae)

Sukkharak¹

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Zusammenfassung iv I. Synopsis 1Malaysia and was invited to Göttingen for a PhD study under his guidance. I express my gratitude to him for his supervision, suggestions and many helpful discussions throughout the duration of my thesis. I am very grateful to PD Dr. Michael Stech as supervisor for my molecular work and being my co-referee. I would like to thank Dr. Agnieszka Ludwiczuk for being the co-author for my phytochemical paper and her hospitality upon my visit to her department.

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On the occurrence of adnate underleaves and appendages inThysananthus(Lejeuneaceae). Studies on the genusThysananthus, 2

Cited by 7 publications

References 2 publications

Phylogeny, taxon circumscriptions, and character evolution in the core Ptychanthoideae (Lejeuneaceae, Marchantiophyta)

Phylogeny, taxon circumscriptions, and character evolution in the core Ptychanthoideae (Lejeuneaceae, Marchantiophyta)

New synonymy in Ptychanthus striatus (Lejeuneaceae, Marchantiophyta)

Taxonomy and Phylogeny of the Liverwort Genus Thysananthus (Marchantiophyta; Lejeuneaceae)

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