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Perianth development and systematics of Aristolochia.
The results support the interpretation of the perianth of Aristolochia , Euglypha and Holostylis as a trimerous calyx as well as other interpretations in terms of position, morphology, development, and comparison to related taxa. Expand
Generic relationships and dating of lineages in Winteraceae based on nuclear (ITS) and plastid (rpS16 and psbA-trnH) sequence data.
- Xavier Marquínez, L. Lohmann, M. L. Salatino, A. Salatino, F. González
- Biology, Medicine
- Molecular phylogenetics and evolution
- 1 November 2009
Phylogenetic analyses of representative species from the five genera of Winteraceae were performed using ITS nuclear sequences and a combined data-set of ITS+psbA-trnH+rpS16 sequences, suggesting that the earliest divergences within Winteraceae could have predated the first events of Gondwana fragmentation. Expand
A phylogenetic analysis of the subfamily Aristolochioideae (Aristolochiaceae)
Systematics of Pipevines: Combining Morphological and Fast‐Evolving Molecular Characters to Investigate the Relationships within Subfamily Aristolochioideae (Aristolochiaceae)
A sister‐group relationship is proposed between Aristolochia lindneri and pentandrous species, which suggests that a group of five species from central and southern South America could be monophyletic and sister to Aristol Cochia subsect. Expand
Reassessing Inflorescence and Floral Morphology and Development in Hedyosmum (Chloranthaceae)
Unlike any previous description, it is found that the ovary is fully superior and appears to play a threefold role in protection, secretion, and dispersal in Hedyosmum. Expand
Metteniusaceae, an early-diverging family in the lamiid clade
A phylogenetic analysis based on a combined dataset of three genes, nuclear 18S rDNA and plastid rbcL and atpB, indicates that the enigmatic Neotropical genus Metteniusa is a member of the lamiid… Expand
Microsporogenesis and systematics of Aristolochiaceae
Within Aristolochiaceae, a secretory tapetum and orbicules are ubiquitous, but both simultaneous and successive types of microsporogenesis occur. Simultaneous cytokinesis is apparently plesiomorphic… Expand
Structure and development of the ovule and seed in Aristolochiaceae, with particular reference to Saruma
Embryological and seed characters do not supply any synapomorphy that support a close relationship between Aristolochiaceae, Hydnoraceae and Lactoridaceae, but some seed features such as the absence of seed appendages and the collapsed cells of endotesta may indicate aclose relationship of Lactoris with Piperaceae plus Saururaceae, although this is the subject of further analysis. Expand
Phylogenetic Relationships in Aristolochiaceae
Based on the results of these analyses, Asaroideae, which have been circumscribed by some authors to consist of Saruma, Asarum, and Thottea, are paraphyletic, and should be emended to exclude ThotteA. Expand