Topic
Alcea
About: Alcea is a research topic. Over the lifetime, 37 publications have been published within this topic receiving 265 citations. The topic is also known as: Hollyhock.
Papers
Journal Article•
TL;DR: The results demonstrated that pollen morphological characteristics, principally pollen shape, size, aperture characters and exine sculpture and structure, are taxonomically important.
Abstract: The pollen morphological characteristics of 21 species of Egyptian Malvaceae belonging to 10 genera: Abelmoschus Medik., Hibiscus L., Gossypium L., Lagunaria L., Abutilon Mill., Sida L., Malva L., Lavatera L., Alcea L. and Malvaviscus Cav., were investigated by light and scanning electron microscopy. The pollens were examined and described in each genus. The results demonstrated that pollen morphological characteristics, principally pollen shape, size, aperture characters and exine sculpture and structure, are taxonomically important. The pollen results are discussed with reference to current systematic treatments of Malvaceae.
34 citations
20 Aug 2017
TL;DR: The new data confirm that new non-native species are continuously introduced into the flora of southern Italy and it is noteworthy that several species, widely used in the reforestation since the middle of the last century, have undergone naturalization in recent years.
Abstract: In the present work new or confirmed alien not-cultivated vascular plants are reported for the flora of the southern Italy regions: Acalypha virginica, Alcea biennis subsp. biennis, Bidens subalter...
31 citations
Journal Article•
TL;DR: Character of spine index was used for the first time to describe Malvaceous pollen and is found of significant taxonomic importance.
Abstract: Foliar epidermal anatomy and palynology of the four species belonging to two genera, Alcea L. and Althaea L. of family Malvaceae from Pakistan were studied and compared in detail both by light microscopy (LM) and scanning electron microscopy (SEM). Leaves were amphistomatic and amphitrichomic with higher frequency of both stomata and trichomes on the abaxial surface. Three main types of glandular and eglandular trichomes were observed. Alcea rosea and A. lavateraeflora could be delimited by the characteristic features of their stellate trichomes. Palynological studies revealed the presence of apolar, pantoporate and echinate pollen. Character of spine index was used for the first time to describe Malvaceous pollen and is found of significant taxonomic importance. Artificial keys are given for all studied taxa based on foliar epidermal anatomical and palynomorphological features. © 2010 Friends Science Publishers
20 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2020 | 2 |
| 2019 | 2 |
| 2017 | 2 |
| 2016 | 1 |
| 2015 | 1 |