Herbal
Soghra ramzi; shahriyar Sa'idi Mehrvarz
Abstract
Veronica L. (Plantaginaceae) is one of the largest genera with about 450 species in the world. This genus is present in different regions of Iran with 61 species. According to previous studies, the morphological and micromorphological characters of this genus have a taxonomic significance. Therefore, ...
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Veronica L. (Plantaginaceae) is one of the largest genera with about 450 species in the world. This genus is present in different regions of Iran with 61 species. According to previous studies, the morphological and micromorphological characters of this genus have a taxonomic significance. Therefore, we tried to solve the systematic relationships of this genus by studying the morphological, micro-morphological and anatomical characters of its fruit in endemic and semi-endemic species of Iran, that have been studied less. After preparation, the fruits were studied using a SEM (Scanning electron Microscope). Cutting manually and double staining were performed for anatomical studies. In this study, various traits such as size, color, shape and surface of the capsule as well as anatomical characteristics such as number and type of cell of different layers of pericarp were investigated comparatively between different species. The shape of the capsule was varied from ovoid to obcordate and tip to emarginate. In most cases, the capsules are puberulent, and only in the V. viscosa the surface is glabrous. The endocarp is generally lignified, the mesocarp cells vary from rounded to square and from one to four layers. Epicarp often consists of elongate cell.
Pegah Zanganchi; Shahriar Saeidi mehrvarz; Iraj Mehgregan
Abstract
Loranthaceae comprises three hemiparasitic genera with five species in Iran. The genera of this family occur mainly in tropical and subtropical areas worldwide. These genera family are distributed in two geographical regions of Alborz and the central parts of Iran. The taxa existing in Iran which are ...
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Loranthaceae comprises three hemiparasitic genera with five species in Iran. The genera of this family occur mainly in tropical and subtropical areas worldwide. These genera family are distributed in two geographical regions of Alborz and the central parts of Iran. The taxa existing in Iran which are included in this analysis are: the genus Loranthus Jacq., which includes two species: L. europaeus, which lives on Quercus, and L. grewinkii is found on Pyrus and Amygdalus; the genus Viscum L. with two species: V. album and V. laxum attacking different trees; and Arceuthobium oxycedri which is found on Juniperus spp. Jin jungles of Semnan. The total DNA was extracted from fresh or herbarium specimens with a modified CTAB method. The regions of nrDNA ITS and cptrnL-F were amplified and sequenced. In this study, 27 taxa (24 taxa for cptrnL-F, 23 taxa for nrDNA ITS, 20 taxa for combined sequence data) were studied as ingroups and 3 taxa as outgroups. To reconstruct the phylogenetic relationships in Loranthaceae and to compare the affinities of this family with the other members of Santalales, the molecular data were analyzed. The analyses were carried out using Maximum Parsimony, Bayesian method and Maximum Likelihood method. Our results indicated that Loranthaceae is monophyletic. The strict consensus tree from Maximum Parsimony analysis of the concatenated two gene dataset showed two monophyletic clades with 100% bootstrap support for two families Loranthaceaeand Viscaceae.
