Pollen morphology of Hymenosphace and Aethiopis sections of the genus Salvia (Lamiaceae) in Turkey

Abstract

Palynological characteristics of 30 Salvia taxa in sections Hymenosphace and Aethiopis from Turkey were investigated by light and scanning electron microscopy. S. aethiopis (sect. Aethiopis) has the smallest pollen while S. blepharochlaena (sect. Hymenosphace) has the largest pollen. The basic shape of the pollen grains in most taxa is suboblate, oblate-spheroidal, or prolate-spheroidal to spheroidal; however, subprolate pollen grains are occasionally are found in S. cassia of sect. Aethiopis. Hexacolpate pollen is dominant in all studied taxa, but heptacolpate and octacolpate pollen grains are mixed together in S. palaestina (heptacolpate, 20%) and S. candidissima subsp. candidissima (heptacolpate, 2% and octacolpate, 40%). The exine sculpturing is bireticulate (the common type) or reticulate-perforate. The bireticulate and the reticulate-perforate sculpturing patterns can be divided into subtypes according to the number of primary lumina. Taxonomic implications of the pollen data are also discussed.

Pollen morphology of six species of subfamily Stachyoideae (Lamiaceae) in Saudi Arabia

“…The colpi of the pollen in the species investigated (Figure 1: 1-6) are two types: 1) Hexazonocolpate type in the pollen of M. microphylla Koch. (Figure 1: 1) and this is in accordance with those described in the genus Mentha L. (Celenk et al, 2008 a) and in the three Salvia species (Figure 1: 4, 5 and 6) which agree with those reported in the pollen grains of different Salvia species (Hamzaoglu et al, 2005;Jafari and Nikian, 2008;Kahraman et al, 2009aKahraman et al, , 2010aDereboylu et al, 2010;Özler et al, 2013). 2) Trizonocolpate in the pollen of N. deflersiana (Figure 1: 2) which is confirmed by Celenk et al (2008 b) and O. fruticosa subsp.…”

“…agree with several investigations on pollen morphology of Salvia species (Hamzaoglu et al, 2005;Jafari and Nikian, 2008;Kahraman et al, 2009aKahraman et al, , b, 2010aKahraman and Doghan, 2010;Dereboylu et al, 2010;Özler et al, 2013). The colpi of the pollen in the species investigated (Figure 1: 1-6) are two types: 1) Hexazonocolpate type in the pollen of M. microphylla Koch.…”

Pollen Morphology of Indian Species of Saraca L. (Leguminosae)-A Threatened and Legendary Medicinal Tree

“…Palynological characters provide very important information for the phylogenetic reconstructions [12]. Moreover, from a phylogenetic as well as evolutionary point of views, the polarity, symmetry, aperture types and exine sculpturing are the most important pollen characters [13].…”

“…Morphology of the pollen grain is often a pertinent taxonomic marker in the identification of higher plants [11] and is not influenced by environmental conditions. Palynology is unique to provide a tremendous amount of information and the variation of pollen morphological characters have importance for phylogenetic structuring [12] and having phylogenetic significance [13] it was applied to evaluate intergeneric relationships [14] and classify the eudicots [15].…”

Pollen morphology of <i>Verbascum</i> L. (Scrophulariaceae) in Northern and Central Iraq

“…Therefore, study of different characteristics would help in resolving the relationships and delimitation of these species. Pollen morphology is proved to be a useful character for improving the accuracy in the identification and classification of several plant groups (Erdtman, 1952;Rajbhandary et al, 2012;Özler et al, 2013;Sawar and Takahashi, 2013). Despite pollen morphology of Verbascum species was studied by several authors (Erdtman, 1952;Filippini et al, 1990;Perveen, 1993;Lobin and Pormbski, 1994;Bukhari and Alfarhan, 2006;Kheiri et al, 2006;Pehlivan et al, 2008), the pollens of Verbascum found in Iraq has never been investigated.…”