scholarly journals FLORISTIC DIVERSITY OF THE GROUPING AT PISTACIA ATLANTICA IN THE REGION OF NAÂMA (ALGERIA)

2021 ◽  
Vol 10 (19) ◽  
pp. 466-475
Author(s):  
Abdelkrim Benaradj ◽  
Hafidha Boucherit ◽  
Okkacha Hasnaoui

Floristic inventory carried out on grouping range at Pistacia atlantica in southern region of Naama makes it possible to identify 135 taxa, divided into 36 families and 105 genera. This large specific diversity, belong to 36 botanical families, best represented (48%) being Asteraceae, Poaceae, Fabaceae and Brassicaceae. The biological analysis shows predominance of Therophytes with 68 species, i.e. 50%. This predominance is characteristic of arid regions vegetation which adapt to saharan and steppe environment. The biogeographic analysis reveals a predominance of three biogeographical types (mediterranean, saharan and endemic) with a rate of 64% or 87 species. This biogeographic distribution reveals floristic heterogeneity and confirms mediterranean affinity of region flora, which combines three sets: high steppe plains, saharan atlas and Saharan border to South.

2008 ◽  
Vol 3 (6) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Hachemi Benhassaini ◽  
Fatima Z. Bendeddouche ◽  
Zoheir Mehdadi ◽  
Abderrahmane Romane

The oleoresin of Pistacia atlantica Desf. ssp. atlantica, growing wild in different arid and semi-arid regions of Algeria, is a popular naturally-occurring chewing gum and has been used traditionally in the treatment of peptic ulcer. GC/MS analysis of the essential oil obtained from solvent distillation of the fresh oleoresin has led to the identification of many terpenoids: α-pinene (39.4%), β-pinene (12.9%), carvacrol (11.8%), pinocarvone (5.5%), limonene (5.1%), germacrene-D (2.4%), trans-pinocarveol (2.1%), camphenol (2%), borneol (2%), α-terpene (1.8%), p-cymene (1.7%), terpinolene (1.4%), terpinene-4-ol (1.4%), isopinocarveol (1.1%) and verbenene (1.0%). Other minor constituents were also identified.


2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Francilene Cardoso Almeida ◽  
Marcio Roberto Pietrobom ◽  
Rozijane Santos Fernandes

Abstract: Despite an increase in studies involving lycophytes and ferns in recent years, Maranhão is still one of the northeastern states with a poorly known flora, mainly due to low sampling. For Chapada das Mesas National Park, a protected conservation unit in the Cerrado maranhense with phytophysiognomies that favor floristic diversity, there are no floristic studies about lycophytes. This study aimed to conduct the floristic inventory and taxonomic study of lycophytes in Chapada das Mesas National Park. Three collection expeditions, of three days each, were made between March 2017 and June 2018. Three families of lycophytes represented by three genera and six species were identified in the study area. The most diverse family was Selaginellaceae with four species: Selaginella conduplicata, S. erythropus (Mart.) Spring, S. radiata (Aubl.) Baker and S. simplex Baker. The other two families, Isoëtaceae and Lycopodiaceae, had one species each, Isoëtes sp. and Palhinhaea cernua (L.) Franco & Vasc. This study also reports two new record for the Brazilian Cerrado phytogeographic domain, S. conduplicate and S. radiata, of which the first is a new record for Maranhão State. Most specimens were found in riparian forest on rocky outcrops.


2020 ◽  
pp. 28-34
Author(s):  
Wouokoue Taffo Junior Baudoin ◽  
Avana Tientcheu Marie Louise ◽  
Hamawa Yougouda ◽  
Nguetsop Victor Francois ◽  
Tsobou Roger ◽  
...  

Sustainable management of pastoral resources requires knowledge in terms of floristic diversity and productivity of the rangelands. The objective of the present study carried out in the Bamboutos Mountains was to assess the floristic diversity and carrying capacity of the natural pastures. Floristic inventory was done using the method of quadrat point aligned in 15 plots of 400 m². Aerial phytomass of herbaceous plants was measured by the full harvest method. A total of 74 species, including 09 woody plants belonging to 56 genera and 20 families were recorded. The number of taxa recorded in the plots varied from 11 to 36 species. Imperata cylindrica with a specific contribution of presence of 17.45% was the most abundant species in the rangeland. The species-richest families were Poaceae, Fabaceae, Asteraceae and Cyperaceae. The calculated pastoral value of the pasture was 56.21%. These pastures were dominated by phanerophytes (29.72%) and therophytes (24.32%). The forage productivity of the grazed area, estimated based on the regrowth biomass was 6498.57 kg DM/ha while the carrying capacity of the rangeland was 2.31 TLU/ha. These results showed that the fodder potential of the Bamboutos Mountains is enough diversified but remains under exploited.


2020 ◽  
Vol 12 (10) ◽  
pp. 16295-16313
Author(s):  
Sanjay Gajanan Auti ◽  
Sharad Suresh Kambale ◽  
Kumar Vinod Chhotupuri Gosavi ◽  
Arun Nivrutti Chandore

High altitude plateaux are found throughout northern Western Ghats.  These plateaux harbor a great diversity of monsoon flora and endemism but are highly neglected due to the seasonality and harsh climatic conditions.  Anjaneri Hill is an important rock outcrop in northern Western Ghats.  It is the type locality of Ceropegia anjanerica.  As an attempt to make a floristic inventory of an important area, a preliminary study was undertaken.  A total of 385 flowering plants from 68 families have been reported from Anjaneri protected area in the present study, of these 114 are endemics.  Out of these 114 species, 81 are endemic to India while 33 taxa are endemic to the Western Ghats.  Anjaneri rock outcrop shows great floral diversity due to varied microhabitats.  The observations on phenology and adaptive traits were recorded.  The data on geology and geomorphology is presented in order to understand the geological nature of the rock outcrop.  Intensive study on varied microhabitat is needed for the documentation of floral diversity existing on the Anjaneri Hill.


Author(s):  
Charles M. Sparacino ◽  
Patricia A. Hyldburg ◽  
Thomas J. Hughes
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