Pollen morphology of endemic species of theGonospermumLess.,LugoaDC. andTanacetumL. complex (Asteraceae: Anthemideae) in the Canary Islands (Spain), and its taxonomical implications

Ramos, Irene E. La Serna; Mederos, Miguel Antonio Padrón

doi:10.1080/00173130802598074

Cited by 3 publications

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“…On the other hand, a considerable number of palynological studies were carried out in the Canaries (e.g. La Serna-Ramos et al 1994; La Serna-Ramos 1996; La Serna-Ramos & Padron-Mederos 2008; Padrón-Mederos and La Serna-Ramos 2011) and, more recently, several investigations on pollen morphology were conducted in Azores (Morgado et al 2014, 2015), where a pollen inventory of the endemic species was also performed (Morgado et al 2017). In this study we aim to characterize and compare the pollen morphological features of ten species from the endemic plant genera of Madeira archipelago and contribute to a better understanding of their taxonomy.…”

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confidence: 99%

Pollen morphology of the endemic genera of the Madeira archipelago, Portugal

et al. 2023

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This study presents the first palynological characterisation of the five endemic plant genera of the Madeira archipelago: Chamaemeles Lindl, Melanoselinum Hoffm., Monizia Lowe, Musschia Dumort and Sinapidendron Lowe. Pollen grain morphology of ten endemic species was studied using light and scanning electron microscopy techniques. The size and shape of pollen grains, the polar axis, the equatorial diameter, and the exine ornamentation were measured and described. We found that the pollen grains of the five endemic genera are all medium-size monads. The close relative apiaceous Melanoselinum and Monizia differ in polar (P) and equatorial (E) diameter size and exine ornamentation while Sinapidendron species show differences in P, E, and P/E ratios. The pollen grains of the two Musschia species are very similar to each other, but differ in morphology and ornamentation from the Macaronesian endemic bellflowers Azorina vidalii and Canarina canariensis. This study unveiled differences between the endemic taxa and with their close related species, thus providing support to previous taxonomic findings.

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