Pollen morphology and its systematic implications for the generaKeiskea miq. andCollinsonia L. (Elsholtzieae-Lamiaceae)

@article{Hong2009PollenMA,
  title={Pollen morphology and its systematic implications for the generaKeiskea miq. andCollinsonia L. (Elsholtzieae-Lamiaceae)},
  author={Suk-Pyo Hong},
  journal={Journal of Plant Biology},
  year={2009},
  volume={50},
  pages={533-539}
}
  • Suk-Pyo Hong
  • Published 1 October 2007
  • Geology
  • Journal of Plant Biology
The pollen morphology of six species ofKeiskea and three representative taxa ofCollinsonia was studied in detail using LM, SEM, and TEM. In both genera, pollen grains are monad, hexa-colpate, and mostly medium in size [P = 28.0 to 37.0 μm, E = 24.3 to 30.7 μm (Keiskea); P = 30.0 to 45.0 μm, E = 26.0 to 39.0 μm (Collinsonia)]. Polar outlines are of circular or ellipsoid form. Shapes range from primarily oblate-spheroidal to prolate-spheroidal to subprolate, and rarely prolate in the equatorial… 
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References

SHOWING 1-10 OF 26 REFERENCES
Pollen morphological studies in tribe Ocimeae (Nepetoideae: Labiatae): I. Ocimum L
TLDR
A number of examples are cited in which the pollen morphology supports recent or proposed taxonomic changes, for example the transfer of Erythrochlamys cufodontii Lanza and E. nummularia Hedge to Ocimum, and some notable parallels with taxonomic opinion are shown.
Pollen morphology and taxonomy in North American Labiatae
TLDR
Pollen morphology is described and illustrated based on SEM studies of 118 species of Labiatae (Lamiaceae) native to North America and the value of pollen as a taxonomic character in this family is discussed.
Reproductive morphology ofMegaleranthis saniculifolia Ohwi (Ranunculaceae) and its systematic implications
TLDR
It is suggested that M. saniculifolia is closely related to Trollius, and should be included within that genus, i.e., asT.
Pollen morphology of the genera Polygonum s. str. and Polygonella (Polygoneae: Polygonaceae)
TLDR
The pollen of 30 taxa in two genera, viz Polygonum s.
POLLEN AND NUTLET MORPHOLOGY IN MOSLA (LABIATAE) AND THEIR SYSTEMATIC VALUE
TLDR
Both pollen and nutlet morphology suggest that Mosla and Perilla are the most closely related and highly specialized among these genera.
A Taxonomic Revision of Collinsonia (Lamiaceae) Based on Phenetic Analyses of Morphological Variation
TLDR
Results from field and herbarium observations and from the phenetic analyses indicate that specimens of C. serotina with four stamens represent a distinct species of Collinsonia, which is now recognized as C. canadensis.
The origin of three- and sixcolpate pollen grains in the lamiaceae
TLDR
6-colpate pollen grains of the genus Prostanthera are reported to be two-celled, which means that similar forms of 6-colPate pollen in systematic groups of Lamiaceae with two- and three-CElled gametophytes originate independently.
Glossary of pollen and spore terminology
Biosystematics of the tribe satureineae(labiatae) in Canada I.
TLDR
Chromosome numbers of 10 Canadian species have been determined and two counts are recorded for the first time and Pycnanthemum virginianum is found to be apomictic in Canada.
Palynological study of Lavandula (sect. Pterostoechas, Labiatae): Canario-maderiense endemics
TLDR
Seven endemic taxa of Lavandula L. (sect. Pterostoechas) were studied palynologically by light and scanning electron microscopy and revealed the taxonomic significance of palynological characters.
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