|
|
|
| Registros recuperados: 10 | |
|
|
| Ruchisansakun, S.; Suksathan, P.; Niet, T. van der; Smets, E.F.; Saw-Lwin; Janssens, S.B.. |
| A revision of the Balsaminaceae of Myanmar is presented based on herbarium collections and a field trip in 2015. Sixty-five species, unevenly distributed across one monotypic (Hydrocera) and one species-rich genus (Impatiens), are recognised. An identification key to species is presented. Twenty species are new records for the country, 17 names are typified and seven species names are synonymized. For each species, a description of the morphology, phenology, ecology and distribution range is provided. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Hydrocera; Impatiens; Southeast Asia; Taxonomy. |
| Ano: 2018 |
URL: http://www.repository.naturalis.nl/record/671470 |
| |
|
| |
|
| |
|
| |
|
|
| Geuten, K.; Becker, A.; Kaufmann, K.; Caris, P.; Janssens, S.; Viaene, T.; Theißen, G.; Smets, E.. |
| Impatiens and Marcgravia have striking morphological innovations associated with the flowers. One of the sepals in Impatiens is spurred and petaloid, while in Marcgravia the petals are fused into a cap and nectary cups are associated with the inflorescence. Balsaminaceae (Impatiens) and Marcgraviaceae have surprisingly been shown to be closely related, since both belong to the balsaminoid clade of Ericales (basal asterids). However, several thorough morphological studies thus far have not revealed shared derived characters (synapomorphies) that support a close relationship between these families. In the balsaminoid clade, transitions from entirely green flowers to flowers with heterotopic petaloid organs can be observed. The primary role of class B genes... |
| Tipo: Article / Letter to the editor |
Palavras-chave: SEPALLATA3; Class B genes; Petal identity; MADS-box genes; Impatiens; Marcgravia. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/407348 |
| |
|
|
| Caris, P.L.; Geuten, K.P.; Janssens, S.B.; Smets, E.. |
| The floral morphological and developmental patterns in three species of Impatiens (Balsaminaceae), namely I. columbaria, I. hawkeri, and I. niamniamensis, were studied to contribute to a better understanding of floral evolution in the genus. Strangely enough, the highly diverse floral morphology and ontogeny of this horticulturally important genus have never been studied thoroughly (e.g., using scanning electron microscopic techniques). We discuss the position and the developmental sequence of the different perianth members. We hypothesized that in the course of evolution, the anterolateral sepals become reduced and that a morphocline can be recognized going from species with five sepals, over species with rudimentary sepals that fuse postgenitally with... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Balsaminaceae; Ericales; Floral development; Floral evolution; Floral morphology; Impatiens; Scanning electron microscopy; 42.40. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/422332 |
| |
|
| |
|
| |
|
|
| Janssens, S.; Geuten, K.; Yuan, Y.; Song, Y.; Küpfer, P.; Smets, E.. |
| Balsaminaceae are a morphologically diverse family with ca. 1,000 representatives that are mainly distributed in the Old World tropics and subtropics. To understand the relationships of its members, we obtained chloroplast atpB-rbcL sequences from 86 species of Balsaminaceae and five outgroups. Phylogenetic reconstructions using parsimony and Bayesian approaches provide a well-resolved phylogeny in which the sister group relationship between Impatiens and Hydrocera is confirmed. The overall topology of Impatiens is strongly supported and is geographically structured. Impatiens likely originated in South China from which it colonized the adjacent regions and afterwards dispersed into North America, Africa, India, the Southeast Asian peninsula, and the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Balsaminaceae; Phylogeny; Reconstruction; Sister group relationship; Impatiens; Hydrocera. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/407352 |
| |
| Registros recuperados: 10 | |
|
|
|
