Calceolariaceae: floral development and systematic implications.

@article{Mayr2006CalceolariaceaeFD,
  title={Calceolariaceae: floral development and systematic implications.},
  author={Eva Mayr and Anton Weber},
  journal={American journal of botany},
  year={2006},
  volume={93 3},
  pages={
          327-43
        }
}
The recent establishment of the new family Calceolariaceae, separated from Scrophulariaceae on the basis of molecular evidence, is complemented here by a scanning electron microscopy study of floral morphology and development of 12 species encompassing all genera (Calceolaria, Jovellana, and Stemotria [= Porodittia]). All species showed a similar pattern of organ initiation. The slightly zygomorphic, four-merous calyx is the first floral organ series initiated, with the primordia emerging… 

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References

SHOWING 1-10 OF 43 REFERENCES

Floral organogenesis in five genera of the Marantaceae and in Canna (Cannaceae)

The paired flowers of all species of the Marantaceae studied, except Monotagma plurispicatum, are produced through the division of an apical meristem with a tunica-corpus structure, and this pattern is interpreted as a variation on the more generalized pattern of inner androecial formation found in the other genera.

Evolution of veroniceae: A phylogenetic perspective

Based on comparison with results from the molecular analyses, the rosette habit is inferred to be ancestral in the tribe Veroniceae with two losses and at least two regains and chromosome number was likely to be x = 9 in the ancestor of VeronICEae with other base numbers evolving several times in parallel.

Floral Structure of Besseya and Synthyris (Scrophulariaceae)

  • L. Hufford
  • Biology
    International Journal of Plant Sciences
  • 1992
The floral structure of Besseya and Synthyris was examined to clarify corolla variation and delineate characters for phylogenetic analysis. Inflorescences of both genera are racemes, although those

A floral ontogenetic study on the sister group relationship between the genus Samolus (Primulaceae) and the Theophrastaceae.

It is proposed to keep Samolus separated from the genera of the Theophrastaceae, and it is suggested that it be raised to family level.

Antirrhinum and Asteridae--evolutionary changes of floral symmetry.

The developmentally most intriguing groups are those with loss of the perianth and reduction of floral organ numbers to two or one, Callitriche being the most extreme genus.

Disintegration of the scrophulariaceae.

A molecular systematic study of Scrophulariaceae sensu lato using DNA sequences of three plastid genes revealed at least five distinct monophyletic groups, which are newly erected herein to recognize the phylogenetic distinctiveness of tribe Calceolarieae.

UNIDIRECTIONAL ORGAN INITIATION IN LEGUMINOUS FLOWERS

The order of initiation of floral organs is compared in representative caesalpinioid and papilionoid legumes, and a survey of unidirectionality reported among legumes is presented.

Quantitative floral development in Pseudolysimachion (Scrophulariaceae): intraspecific variation and comparison with Veronica and Veronicastrum

The trajectories of most organs of Pseudolysimachion were intermediate between those of Veronica and Veronicastrum in position as well as in type of curve; thus, the shapes of the mature organs are not strictly homologous and not indicative of close relationship.

Evolution of flower shape inVeroniceae (Scrophulariaceae)

The ancestral flowers of theVeroniceae may have been small with moderately short corolla tubes and lobes; longCorolla tubes arose four times in the tribe and large corolla lobes twice.

The Chilean Calceolaria integrifolia s.l. Species Complex (Scrophulariaceae)

The taxonomic revision of the Chilean C. integrifolia s.l. complex now recognizes nine species, each of which has its own characteristic distribution pattern, which is correlated with ecological and climatic factors.