Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Factors affecting the distribution of Pluchea dioscoridis (L.) DC. and its associated species in Gharbia Governorate, Nile Delta, Egypt.
1
16
EN
Dalia
Ahmed
Botany Department, Faculty of Science, Tanta University
dalia.ahmed@science.tanta.edu.eg
M.
El-Beheiry
Botany Department, Faculty of Science, Tanta University
no@gmail.com
A.
Sharaf El-Din
Botany Department, Faculty of Science, Tanta University
G.
T.
El-Taher
Botany Department, Faculty of Science, Tanta University
10.21608/taec.2018.11892
Pluchea dioscoridis is a perennial ruderal shrub. It has been classified as a weed controller due to its bushy growth, medicinal plant due to its strong antioxidant and anti-liver cancer activity and a phytoremediator plant. The present work aims to study the environmental factors affecting the distribution and common associated species of P. dioscoridis in Gharbia governorate, Nile Delta, Egypt. It aims also to assess the diversity and behavior of the common species along the different environmental factors. Seventy three stands, representing four common urban habitats (wastelands, railway sides, canal and drain banks), were selected. In each stand; the florisitic composition and cover of the studied species and its common associated species were estimated. Seventy-two species were recorded as being associated with P. diosocridis. Therophytes were the most represented, while parasites were the least. Mediterranean taxa had the highest chorological contribution. The highest coverage percentage of P. dioscoridis was recorded in the canal banks. TWINSPAN and DCA techniques led to the recognition of four vegetation groups; these groups were indicated by Persicaria salicifolia (A); Echinochloa stagnina and Chenopodium album (B); Arundo donax (C) and P. dioscoridis (D). Vegetation group D, which occupied wastelands, was the most diverse, while VG B occupied drain banks, was the least diverse. Soil analysis indicated that VG A occupied canal banks had the highest values of OM (7.7%) and P (41.2 mg100g-1), but the lowest water holding capacity (20.8%), Cl (0.08%), CO3 (0.07%) and HCO3 (0.04%). Canonical Correspondence Analysis (CCA) showed that chloride, electrical conductivity, total nitrogen, carbonate, and calcium cations were the most effective environmental variables on the distribution of P. dioscoridis and its associated species in the study area. This study may be a beneficial tool to use P. dioscoridis as indicator of ecological change and to estimate the relationship between soil variables and wild communities of it.
Chorotype,Habitat,Pluchea dioscoridis,Species diversity,species cover,soil measurement
https://taec.journals.ekb.eg/article_11892.html
https://taec.journals.ekb.eg/article_11892_e7525275f9ed2a3b731fe1f993a3663d.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Morphological and Anatomical Studies on Selected Lamiaceae Medicinal Plants in Bani Matar District, Sana'a (Yemen)
17
39
EN
Ahmed
Ya’ni
1Botany Section, Biology Department, Faculty of Science, Sana'a University, Sana'a, Yemen
Soad
Hassan
Botany Department, Faculty of Science, Ain Shams University
Zeinab
Elwan
Botany Department, Faculty of Science, Ain Shams University
zeinabelwan@hotmail.com
Hassan
Ibrahim
Botany Section, Biology Department, Faculty of Science, Sana'a University, Sana'a, Yemen
Omayma
Eldahshan
Pharmacognosy Department, Faculty of Pharmacy, Ain Shams University
10.21608/taec.2018.11910
Morphological and anatomical characters of stem, petiole and leaves of 16 selected medicinal taxa of family Lamiaceae collected from Bani Matar district, Sana'a (Yemen) were examined using both stereo-and light microscopes. The obtained macro-and micromorphological characters (298) were analysed using the software jmp version 13. The resulted dendrogram was discussed on the light of the current taxonomic treatments of Lamiaceae. The measurement of the quantitative characters of macro-and micromorphological characters for the studied taxa was established by multivariate analysis of variance (ANOVA). Evaluation of obtained results revealed that, many characters viz. leaf composition, stomatal types and distribution, number of stamens, stem and petiole vasculature, types of trichomes, nutlet features, number of palisade and spongy layers and types of crystals are of diagnostic value in species identification and delimitation and are potentially valuable at different taxonomic levels. All the quantitative macro- and micromorphological characters except nutlet length are highly significant in species delimitation.
anatomy,ANOVA,cluster analysis,Lamiaceae,medicinal plants,Morphology,Yemen
https://taec.journals.ekb.eg/article_11910.html
https://taec.journals.ekb.eg/article_11910_96872e4a920661b9756ef692eaca48d8.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Pollen and Seed Morphology of Some Endemic Taxa in Saint Catherine, Sinai, Egypt
40
60
EN
Abbas
A.
El-Ghamery
Botany and Microbiology Dept., Faculty of Science, Al-Azhar University
Hasnaa
Hosni
1Botany Dept., Herbarium, Faculty of Science, Cairo University
Ahmed
Sadek
Botany and Microbiology Dept., Faculty of Science, Al-Azhar University
asbotanist@azhar.edu.eg
10.21608/taec.2018.11916
Macro- and micro-morphological features of seeds and pollen grains of 12 endemic taxa belonging to seven families collected from Saint Catherine area, South Sinai, Egypt were examined by light microscope (LM) and scanning electron microscope (SEM). Macro- and micro-morphological characters, of seeds including shape, colour, size, brightness, seed surface, epidermal cell shape, anticlinal boundaries, and periclinal cell wall are presented. Pollen description includes shape, size, apertures and exine ornamentation. This study presents. Seeds of eight taxa and pollen of three taxa have been described for the first time in this study.
Endemics,Pollen,seed morphology,Sinai,Saint Catherine
https://taec.journals.ekb.eg/article_11916.html
https://taec.journals.ekb.eg/article_11916_9a209189130cbd3ac4cc89a7f745e16c.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Re-assessment of the near-endemic taxa in the Egyptian Flora
61
83
EN
K.
Shaltout
Botany Department, Faculty of Science, Tanta University
D.
Ahmed
Botany Department, Faculty of Science, Tanta University
M.
Diab
Botany Department, Faculty of Science, Kafr El-Sheikh University.
M.
El-Khalafy
Botany Department, Faculty of Science, Kafr El-Sheikh University.
10.21608/taec.2018.11903
This paper aims to answer the following questions: 1- what is the actual number of near-endemic taxa in the Egyptian flora?, 2- what are the reasons and justifications for addition or exclusion of plants to or from the final list of near-endemic taxa?, 3- what are the conservation categories of near-endemic taxa according to IUCN?, 4- How can we make a red list of these taxa?, 5-what are the services and goods offered by near-endemic taxa?, and 6- what are the threats that impact these taxa most?. These aims are achieved through preparing a recent list for the near-endemic taxa and their habitats in the Egyptian flora. The lists were analyzed in terms of taxonomic diversity, life and sex forms, size structure, flowering activity, dispersal types, economic potential, threats and national floristic distribution, and IUCN categories. The total number of near-endemic taxa in the prepared recent list is 73, belonging to 58 genera and 28 families; and were recorded in 11 habitats. The life form represented most is the therophytes while the ballochores and pogonochores are the most represented dispersal types. There was a gradual increase in the frequency of the flowered taxa until reaching a maximum value from March to May, and then decreased again reaching a minimum value from August to January. Near endemics are distributed in Egypt and adjacent countries as follows: 39 taxa with Palestine, 19 with Libya, 8 with Saudi Arabia, 4 with Sudan, 2 with Jordan, and only one with Lebanon. Fifty-one taxa had a distribution in only one phyto-geographical region, while the remaining taxa had a distribution in two or more regions. All near-endemic taxa have at least one aspect of economic goods and exposed to at least one type of threats, where the most represented good was the medicinal uses, while over-collecting and over-cutting were the most represented threats. In this paper, 30 near-endemics were evaluated according to IUCN categories as follows: 12 endangered, 5 critically endangered, 4 extinct and 1 vulnerable, while 8 species are data deficient. In addition, 36 near-endemics were also evaluated in previous studies according to IUCN categories as follows: 15 endangered, 11 critically endangered, 7 vulnerable, 2 rare and 1 least concern
Endemism,Egyptian flora,Near-endemics,biodiversity,conservation,IUCN categories
https://taec.journals.ekb.eg/article_11903.html
https://taec.journals.ekb.eg/article_11903_62f8fedf0299a80f55af3e29bb847fc9.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Numerical re-assessment of the phenetic relationship between Apocynaceae and Asclepiadaceae
84
106
EN
Adel
El Gazzar
https://orcid.org/00
Department of Botany and Mcrobiology, Faculty of Science, El-Arish University, N. Sinai.
elgazzar_adel@hotmail.com
A.
El-Ghamery
Botany and Microbiology Department, Faculty of Science (Male), Al-Azhar University, Cairo.
A.
El-Saied
Botany and Microbiology Department, Faculty of Science (Male), Al-Azhar University, Cairo.
A.
El-Kady
Botany and Microbiology Department, Faculty of Science (Male), Al-Azhar University, Cairo
A.
Khattab
Botany and Microbiology Department, Faculty of Science, Cairo University, Cairo, Egypt.
10.21608/taec.2018.11941
Recognition of the Apocynaceae and Asclepiadaceae as one family or as two separate but related families with five subfamilies was for long highly controversial. Raising some of the subfamilies to the rank of family was also disbutable. To resolve this issue, 55 morphological and palynological characters were recorded in a data matrix comprising a sample of 41 species belonging to 24 genera of Apocynaceae and 75 species from 31 genera of the Asclepiadaceae. The data matrix was subjected to cluster analysis using the Sørensen’smeasure of dissimilarity and Ward's method of clustering in the PC-ORD version 5. Out of three possible interpretations of the result, we opted for that which suggestd considering the five subfamilies Apocynaceae-Rauwolfioideae, Apocynaceae-Apocynoideae, Asclepiadaceae-Asclepiadoideae, Asclepiadaceae-Periplocoideae and Asclepiadaceae-Secamonoideae as five distinct, neatly defined and homogeneous
Apocynaceae,Asclepiadaceae,classification,cluster analysis,Morphology,Pollinia,tetrads
https://taec.journals.ekb.eg/article_11941.html
https://taec.journals.ekb.eg/article_11941_fc66c8385de2d8a51b07e27aa8e68e85.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Associated species and threats upon Lycium schweinfurthii var. schweinfurthii in the Deltaic Mediterranean coast, Egypt
107
122
EN
Kamal
Shaltout
Botany Department, Faculty of Science, Tanta University, 31527, Tanta, Egypt
kamal.shaltout@science.tanta.edu.eg
Ahmed
El-Din
Botany Department, Faculty of Science, Tanta University, 31527, Tanta, Egypt
Ragab
El-Fahar
Botany Department, Faculty of Science, Tanta University, 31527, Tanta, Egypt
Hany
Beshara
Burullus Protected Area, NCS – EEAA, Cairo, Egypt
haniman20@yahoo.com
10.21608/taec.2018.13518
The present study evaluates the associated species in twelve sites including forty stands that were sampled to represent the variation among Lycium schweinfurthii var. schweinfurthii Dammer population in Egypt. The stands represent the distribution of this population in five habitats in the study area (coastal sand dunes, flat sand sheets, roadsides, island sand dunes and canal banks). Seventy associated species belong to 27 families were recorded, they comprise 38 perennials (54.2%) and 32 annuals (47.1%). Therophytes had the highest value (47%), followed by geophyte-helophytes (17%). Gramineae had the highest contribution (11 species = 15.7 %) followed by Compositae (9 species = 12.8 %). Thirteen vegetation groups were recognized in the study area after the application of TWINSPAN. Echinops spinosissimus and Rumex pictus (P=100 %) were the main associated in the thirteen groups. The significant edaphic variables which affected the distribution of this plant were Ca++, Mg++, HCO3-, SO4--, pH and organic matter. The threats upon its distribution in the study area were cutting (75 %), removing (62.5 %), fragmentation (37.5 %), grazing (25%) and firing (20 %).
Egypt,habitats,Lycium schweinfurthii var. schweinfurthii,Threats,Multivariate Analysis
https://taec.journals.ekb.eg/article_13518.html
https://taec.journals.ekb.eg/article_13518_fe44947cce63d9896cd42e05108459b1.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Fruit and Seed Morphology of Some Species of Solanaceae
123
140
EN
Azza
Khafagi
Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
azzakhafagi@yahoo.com
Abbas
El- Ghamery
Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
Omran
Ghaly
The Herbarium, Ecology and Ranges Department, Desert Research Center, Matariya, Egypt
Osama
Ragab
Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
osama_gamal84@azhar.edu.eg
10.21608/taec.2018.13520
The fruit and seed morphology of 24 species, representing seven genera of Solanaceae were investigated by using a binocular stereomicroscope and scanning electron microscopy (SEM), to determine the significance of fruit and seed coat features as taxonomic characters. Morphological characters, including color, texture, shape, fruit type, hilum position, anticlinal shape and periclinal shape. There were three major patterns of seed ornamentation: irregular reticulate, regular reticulate and verrucate reticulate. The dendrogram showed that species could be grouped into two major clusters, the first cluster (I) contains 15 species and divided into two groups, while the second cluster (II) contains nine species that can be divided into two groups. The data proved useful in the construction of a dichotomous indented key to the studied species. Twenty characters were used to create systematic Key using DELTA key-generating programs. The results indicate that the morphological characteristics of fruits and seeds would be helpful for the identification of Solanaceae species.
Morphology,seed,fruit,SEM,Solanaceae
https://taec.journals.ekb.eg/article_13520.html
https://taec.journals.ekb.eg/article_13520_a56b97bc761ce2bad3974c0d1dd53cee.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Taxonomic revision of Melilotus indicus complex in Egypt
141
151
EN
Faiza
Shehata
0000-0001-8676-0366
Botany& Microbiology Department, Faculty of Science, Menoufia University
faizashehata@yahoo.com
10.21608/taec.2018.13521
Macro- and microomorphological features of Melilotus indicus complex in Egypt were examined using light and scanning electron microscopy, these includes embryo and seed characters, anatomical structure of stem and seed spermoderm. In the present study, three varieties were recorded: var. indicus, var. bonplandii and var. tommasinii. of which var. indicus is a new record to the flora of Egypt. The study revealed that morphological, anatomical and seed characters are of taxonomic significance. A key for identification of the varieties was also given.
anatomy,Melilotus indicus,Morphology,seed morphology,spermoderm
https://taec.journals.ekb.eg/article_13521.html
https://taec.journals.ekb.eg/article_13521_ede9db180e52f19ba904ef2e5d12d3aa.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Evaluation of Changes in Weed Flora in Response to Agricultural Practices in the Arable Lands of El-Menoufia Governorate, Nile Delta, Egypt
152
167
EN
Albaraa
Elsaied
Botany Department, Faculty of science, Al-Azhar univrsity, Nasr city
baraa_elsaied@yahoo.com
Ramadan
Bdair
Botany Department, Faculty of Science, Al-Azhar University
danbder@yahoo.com
10.21608/taec.2018.5916.1002
In Egypt and during the last 50 years, several changes in agricultural practices have affected different components of agro-ecosystems including weed flora. The aim of the present study was to evaluate changes in the weed flora of El-Menoufia Governorate, South of the Nile Delta of Egypt during the period from 1984 to 2018, in response to different agricultural practices. A total of 240 stands were investigated in both spring and summer seasons in order to document the present status of the weed flora. The obtained results were compared to results obtained by other authors in 1984. Results showed major shifts in the weed flora of El-Menoufia Governorate where 67 species out of 146 species were recorded in our study while only 42 species out of 121 species were present in 1984 survey. Changes in the family composition, life form, life span, and chorology were reported. Reasons responsible for such changes have been discussed. Changes in the crop composition, cultivation area of each crop, excessive use of fertilizers and pesticides, changes in irrigation water quality and quantity are the leading change promoters. The high economic importance of the weed flora and the potential threats facing agriculture in Egypt necessitate the formulation of a sustainable strategy for maintaining agro-ecosystems of Egypt and its biodiversity.
weed flora,arable lands,Agricultural practices,Nile Delta
https://taec.journals.ekb.eg/article_20457.html
https://taec.journals.ekb.eg/article_20457_db9c9b6be78e7abe9dcbe4dfbf07befa.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Systematic treatment of Veronica L. Section Beccabunga (Hill) Dumort (Plantaginaceae)
168
183
EN
Faten
Youssef
Ellmouni
0000-0002-9463-0008
Botany department/ Faculty of Science / Fayoum University
fyl00@fayoum.edu.eg
Mohamed
Karam
Botany department/ Faculty of Science / Fayoum University
mak04@fayoum.edu.eg
Refaat
M.
Ali
Botany department/ Faculty of Science / Fayoum University
rma00@fayoum.edu.eg
Dirk
C.
Albach
Institute of biology and environmental sciences, Carl von Ossietzky-University, 26111 Oldenburg, Germany
dirk.albach@uni-oldenburg.de
10.21608/taec.2018.5481.1000
Veronica species mostly occur in damp fresh water places and in the Mediterranean precipitation regime. Members of this genus grow at different altitudes from sea level to high alpine elevations. They show a high level of polymorphism and phenotypic plasticity in their responses to variations of the environmental factors, a quality that allows them to occur over a wide range of conditions. A group with particular high levels of polymorphism is the group of aquatic Veronica L. species in V. sect. Beccabunga (Hill) Dumort. Here, we attempt to unravel some confusion in the taxonomic complexity in V. section Beccabunga. We recognize 20 taxa in V. sect. Beccabunga and explore the occurrence of V. section Beccabunga, mainly in the Mediterranean basin; especially in Egypt (Nile delta and Sinai), Turkey and Iran with each country containing 10 taxa, from a total of 20 taxa, and characterized by endemics, or near-endemic as Veronica anagalloides ssp. taeckholmiorum. The results confirmed that V. section Beccabunga is divided into three subsections Beccabunga, Anagallides and Peregrinae, which essentially can be differentiated by the absence or presence of a petiole.
Morphological key,systematic treatment,Veronica,V. section Beccabunga
https://taec.journals.ekb.eg/article_22589.html
https://taec.journals.ekb.eg/article_22589_913cc2a06146d6b963591cf4b2a7d2ac.pdf
Cairo University Herbarium (CAI)
Taeckholmia
1110-7413
2357-044X
38
1
2018
12
01
Species distribution patterns of the weed flora in mango orchards of Ismailia Governorate, Egypt:implications for conservation
184
200
EN
Mona
El Bous
0000-0002-6004-4211
botany department, Faculty of science,Port said university
monaelbous@yahoo.com
Hoda
Ali
Abd el hamid
Botany department,Faculty of science,Suez canal university
hodaali626@gmail.com
10.21608/taec.2019.5781.1001
The present study deals with the analysis of the floristic composition including plant species, life-span, life-form spectra and floristic categories of weeds associated with mango orchards in Ismailia governorate. A total of 102 weed species (79 annuals, 21 perennials and 2 biennials) related to 85 genera and grouped under 30 families were recorded. Out of the total species, 23 species (22.55%) were monocotyledoneae and 79 species (77.45%) dicotyledoneae. Poaceae, Asteraceae, Brasicaceae and Fabaceae were the most species-rich families representing collectively about 50% of the total recorded species. Therophytes were the predominant life form and constituted 73.53% of the total flora followed by hemicryptophytes (12.75%), geophytes (4.9%), chamaephytes (3.92%), nanophanerophytes (2.94%) and helophytes (1.96%). The chorological analysis of the surveyed flora revealed that the Mediterranean elements constituted the main bulk (41.18%) of the total flora of the area. The other major chorotypes were cosmopolitan (24.51%), pantropical (13.73%) and palaeotropical (7.84%). Saharo-Sindian elements comprised 20 species (19.6%) of the recorded flora. The other floristic categories were either poorly represented by few number of species or absent. Comparison between the presnt floristic composition of mango orchards in Ismailia and adjoining areas or previous studies of Ismailia mango orchards were included.
Mango orchard,weed flora,Ismailia,Life form,Chorotype
https://taec.journals.ekb.eg/article_25915.html
https://taec.journals.ekb.eg/article_25915_969c80824cc3bf247235115196b8fb61.pdf