Developmental morphology of Saxicolella amicorum and S. submersa (Podostemaceae: Podostemoideae) from Ghana

@article{Ameka2002DevelopmentalMO,
  title={Developmental morphology of Saxicolella amicorum and S. submersa (Podostemaceae: Podostemoideae) from Ghana},
  author={K. Gabriel Ameka and Evelin Pfeifer and Rolf Rutishauser},
  journal={Botanical Journal of the Linnean Society},
  year={2002},
  volume={139},
  pages={255-273}
}
Saxicolella (six spp.) is a podostemoid genus occurring in tropical west Africa (Cameroon, Ghana, Nigeria). Taxonomically used characters such as root (with holdfasts), pollen (dyads in many Podostemoideae), capsules (with ribs) and seeds are demonstrated and discussed. This paper deals with the structure and development of two species, which are endemic to rivers in southern Ghana: Saxicolella amicorum J.B.Hall and Saxicolella submersa (J.B.Hall) C.D.K.Cook & Rutish. (syn. Polypleurum… 

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References

SHOWING 1-10 OF 78 REFERENCES

Comparative morphology of Cladopus (including Torrenticola, Podostemaceae) from East Asia to north-eastern Australia

The developmental morphology and anatomy of Cladopus austro-osumiensis Y.K.Usui, C. japonicus Imamura and C. queenslandicus [Domin] C.D. ex Steenis are studied by scanning electron microscope and microtome.

Developmental Morphology of New World Podostemaceae: Marathrum and Vanroyenella

The close relationship of Marathrum and Vanroyenella (as suggested by molecular data) is corroborated by fundamental morphological similarities and one of the seemingly unique features of Van Troyenella is the feather‐like construction of the leaves, with filamentous segments arising directly from the rachis.

Developmental morphology of Apinagia multibranchiata (Podostemaceae) from the Venezuelan Guyanas

The architecture and developmental morphology of A. multibranchiata are compared with other members of the genus and they fit well with the Podostemoideae bauplan known from other New World genera.

The character states of the Caribbean monotypic endemic Strumpfia (Rubiaceae)

Because of a) many unusual and, in part, unique features and b) the lack of detailed comparative data for neotropical Rubiaceae, the genus' subfamilial and tribal position remains obscure.

Structural and developmental diversity in Podostemaceae (river-weeds)

Podostemaceae-the strange family of aquatic angiosperms

The wide range of phenotypic plasticity, morphological nature of the thallus as understood by developmental studies using in vitro cultures, and embryological features of the family are discussed.
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