Pollen morphology of genus<i>Allagopappus</i>Cass. (Asteraceae: Inuleae), endemic to the Canary Islands, Spain

Padrón-Mederos, Miguel Antonio; Serna-Ramos, I. E. La

doi:10.1080/11263504.2011.578787

Cited by 6 publications

(2 citation statements)

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“…Similarly, the largest pollen diameter on the equatorial axis was observed in the A. bracteoosa (37.66 μm) and the smallest diameter was observed the E. canadensis (13.20 μm). Our result is supported by Akyalçin, Arabaci, and Yildiz (2014), Celenk, Tarimcilar, Bicakci, Kaynak, and Malyer (2008) and Padrón‐Mederos and La Serna‐Ramos (2011)). The highest P/E values were observed in Iphiona scabra (1.5 μm) and the lowest values in I. rugosus and I. aucheri (0.8–0.8 μm).…”

Section: Discussionsupporting

confidence: 81%

Morpho‐palynological assessment of some species of family Asteraceae and Lamiaceae of District Bannu, Pakistan on the bases of light microscope & scanning electron microscopy

Khan

Jan

Ahmad

et al. 2021

Microscopy Res & Technique

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Pollen micro-morphological features have proven to be helpful for the plant taxonomists in the identification and classification of plants. The aim of this study was to evaluate the palynological features of family Asteraceae and Lamiaceae from flora of District Bannu, Khyber Pakhtunkhwa, Pakistan using both scanning electron microscopy (SEM) and light microscope (LM) for their taxonomic importance. Pollen of seven Asteraceous species belonging to four genera and four Lamiaceae species categorized into four genera were collected from different localities of research area.The present research work provides detailed information of diverse morphopalynological characters both qualitatively and quantitatively including pollen shape, type, diameter, P/E ratio, exine sculpturing and thickness. Type of pollen in Asteraceae and Lamiaceae was ranged from tricolporate, tricolpate, trizonocolpate and hexazonocolpate. The maximum polar diameter (40.05 μm) and equatorial diameter (37.66 μm) was observed in the Ajuga bracteoosa while minimum polar and equatorial diameter was noted in Isodon rugosus (11.10 μm) and Erigeron canadensis (13.20 μm) respectively. Sculpturing of exine include; echinate, reticulate scabrate, aerolate, reticulate-verrucate, reticulate-scabrate, perforate and reticulate to perforate. Exine thickness was examined maximum 1.50 μm in Helianthus tuberosus, whereas minimum in Conyza Canadensis (0.16 μm). The pollen fertility was found highest in C Canadensis (83.33%) and lowest in Ajuga bracteosa (58.06%). The observed pollen morphology has many valuable qualitative and quantitative attributes for the better understanding of their taxonomy and play significant role in correct identification.

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Section: Discussionsupporting

confidence: 81%

Morpho‐palynological assessment of some species of family Asteraceae and Lamiaceae of District Bannu, Pakistan on the bases of light microscope & scanning electron microscopy

Khan

Jan

Ahmad

et al. 2021

Microscopy Res & Technique

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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.…”

Section: Introductionmentioning

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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Pollen morphology of the East Asiatic genusChelonopsis(Lamioideae: Lamiaceae) and allied genera, with reference to taxonomic implications and potential pollination ecology

Xiang

Funamoto

Evangelista

et al. 2013

Plant Biosystems - An International Journal Dealing with all As

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Pollen morphology of genusAllagopappusCass. (Asteraceae: Inuleae), endemic to the Canary Islands, Spain

Cited by 6 publications

References 16 publications

Morpho‐palynological assessment of some species of family Asteraceae and Lamiaceae of District Bannu, Pakistan on the bases of light microscope & scanning electron microscopy

Morpho‐palynological assessment of some species of family Asteraceae and Lamiaceae of District Bannu, Pakistan on the bases of light microscope & scanning electron microscopy

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

Pollen morphology of the East Asiatic genusChelonopsis(Lamioideae: Lamiaceae) and allied genera, with reference to taxonomic implications and potential pollination ecology

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