Bangladesh Journal of Plant Taxonomy

The Complete Chloroplast Genome Sequence of Zingiber Striolatum (Zingiberaceae) and a Phylogenetic Analysis

Hui Wang, Muhammad Idrees, Zhongping Song — Tue, 25 Jun 2024 00:00:00 +0000

Abstract not available.

Bangladesh J. Plant Taxon. 31(1): 173-176, 2024 (June)

New Combinations in Primula Sect. Cortusoides Subsect. Cortusa (Primulaceae)

Muhammad Idrees, Zhiyong Zhang, Julian M H Shaw — Tue, 25 Jun 2024 00:00:00 +0000

Abstract not available.

Bangladesh J. Plant Taxon. 31(1): 177-180, 2024 (June)

Praxelis Clematidea (Griseb.) R.M. King & H. Rob. (Asteraceae): A New Allien Invasive Angiosperm Record for Bangladesh

Tue, 25 Jun 2024 00:00:00 +0000

Abstract not available.

Bangladesh J. Plant Taxon. 31(1): 181-185, 2024 (June)

Unveiling the Complete Chloroplast Genome of Tribulus Macropterus Var. Arabicus (Hosni) Al-Hemaid & J. Thomas: Genome Structure, Comparative Analysis and Phylogeny

Tue, 25 Jun 2024 00:00:00 +0000

The present investigation unveiled the first complete chloroplast (cp) genome of Tribulus macropterus var. arabicus (Hosni) Al-Hemaid & J. Thomas (Zygophyllaceae), a medicinal herb, indigenous to Saudi Arabia. The cp genome, comprising a length of 158,179 bp and a GC content of 35.8%, exhibited the typical circular quadripartite arrangement of flowering plants, including two inverted repeat regions (25842 bp) separated by a large single-copy (88873 bp) and a small single-copy region (17622 bp). Genome annotation unraveled 132 genes, comprising of 87 protein-coding genes, 37 tRNAs and eight rRNAs. A comparative plastomics approach demonstrated a very similar genome structure and gene organization in closely related taxa. Whole-genome alignment indicated that the inverted repeat regions exhibited greater conservation when compared to the single copy zones. Repeat analysis of the cp genome identified 80 simple sequence repeats, with the majority (64) being mononucleotides. Among the longer repeats, forward repeats were frequent (20) followed by palindromic and reverse repeats. The nucleotide diversity endeavor identified some hypervariable sites (rpl22, cemA, trnL-UAG) in the small and large single copies which would offer opportunities to design molecular markers for potential application in taxonomic identification. Phylogenetic analysis with rbcL barcode elucidated the distinct position of T. macropterus var. arabicus compared to T. macropterus within Zygophyllaceae and further validated the assembly. The findings of this investigation provide significant insights into biological fields, particularly enhancing the current understanding of the genetic and evolutionary variations within Zygophyllaceae.

Bangladesh J. Plant Taxon. 31(1): 1-14, 2024 (June)

Three New Records of Lythraceae in the Flora of Bangladesh

Tue, 25 Jun 2024 00:00:00 +0000

In the course of studying the family Lythraceae of Bangladesh in 2023–2024, some specimens of the family were found to be different than those of any other species of this family reported so far from this country. After a critical examination, these specimens have been identified as Ammannia auriculata, Rotala ramosior, and Rotala malampuzhensis of the Lythraceae. These species are new to the flora of Bangladesh. A detailed taxonomic description, including data on ecology, distribution, and use, a list of representative specimens examined, and illustrations have been provided for each species.

Bangladesh J. Plant Taxon. 31(1): 15-24, 2024 (June)

Three Bryophyte Species New to Türkiye and Southwest Asia

Nevzat Batan, Hüseyin Erata, Tülay Ezer, Mevlüt Alataş — Tue, 25 Jun 2024 00:00:00 +0000

As a result of extensive bryophyte surveys across the different parts of the Karçal Mountain, Türkiye's first biosphere reserve area, Artvin region (Caucasus) in the East Black Sea region of Türkiye, Jungermannia pumila, Scapania uliginosa and Heterocladium flaccidum found as new to Türkiye. Moreover, these taxa are the first time reported for bryophyte flora of South-West Asia in this paper. Descriptions, illustrations, distributions, ecological characteristics, and comparisons with morphologically similar taxa were also provided.

Bangladesh J. Plant Taxon. 31(1): 25-32, 2024 (June)

Exploration of Salinity Effect on Palyno-Morphological Characteristics of Plant Species Collected From Salt Range

Moona Nazish, Fozia Bibi, Mona S Alwahibi, Mohamed S Elshikh, Wajid Zaman — Tue, 25 Jun 2024 00:00:00 +0000

This study aims to explore the pollen morphology of 19 plant species from the Khewra Salt Range by using light microscopy (LM) and scanning electron microscopy (SEM). Plant specimens were collected from various sites in the Khewra Salt Range, identified, and deposited in the Herbarium of Pakistan. Pollen morphology was studied using LM and SEM. Quantitative characteristics, including polar and equatorial diameter, exine thickness, colpus and spines length and width were studied using LM. The studied pollen taxa exhibited extensive variation in size and sculpture, with potential taxonomic implications. Pollen shape of most of the studied species was sub-spheroidal but pollen sizes ranged from 0.98 µm to 14.3µm. Symmetry and polarity of pollen grains were observed, contributing to plant species identification. The P/E ratio varied from Dichanthium annulatum (0.56) to Medicago polymorpha (1.15). Scanning electron micrographs revealed diverse exine sculpturing patterns, such as scabrate and echinate. At the same time, Nerium oleander (0.7-2.1µm) showed high exine thickness and large size colpus with a length of 7.5µm and width of 8.26µm. The largest spines were observed in Vicia sativa (3.7µm long and 1.38 µm wide). The taxonomic key based on palyno-morphological characters offers a tool for quick and precise identification. Pollen viability values were determined. Highest pollen viability was noted for Capparis decidua (97%) that show the species adaptation in Salt range. Palynological features can aid in resolving taxonomic problems and contribute to further karyological and taxonomic evaluations. This study contributes valuable insights into the palynological diversity of plant species of salt range, emphasizing the importance of pollen morphology in understanding and conserving salt-affected ecosystems.

Bangladesh J. Plant Taxon. 31(1): 33-49, 2024 (June)

Elodea Nuttallii (Planch.) St. John (Hydrocharitaceae) - A New Angiospermic Record for Bangladesh

Kazi Sadia Nawrin, Md Almujaddade Alfasane , Md Abul Hassan — Tue, 25 Jun 2024 00:00:00 +0000

Elodea nuttallii (Planch.) St. John has been explained as a new report from Bangladesh. The taxonomic description including flowering, fruiting, ecology and distribution of the species are elaborated here.

Bangladesh J. Plant Taxon. 31(1): 51-55, 2024 (June)

A Taxonomic Revision of Axonopus P. Beauv. (Poaceae: Panicoideae) in India

Tue, 25 Jun 2024 00:00:00 +0000

The status of the genus Axonopus P.Beauv. in India has been varyingly depicted by different workers so far. After comprehensive study, two species, namely A. compressus (Sw.) P. Beauv. and A. fissifolius (Raddi) Kuhlm., are justified for the country. The distributional incongruity of both species in India is unravelled here. The present record of A. fissifolius in Sikkim confirms its extended distribution to the Indian Eastern Himalaya. Additionally, this species is also reported for the first time from Meghalaya. Detailed descriptions of both species are appended here. Illustrations and photoplates, along with notes on habitat, phenology, and distribution, are also presented. A key to the Indian species of Axonopus is incorporated for correct identification and easy recognition.

Bangladesh J. Plant Taxon. 31(1): 57-71, 2024 (June)

Morphological and Molecular Identification of Fungi Isolated From Selected Brri Rice Varieties

Habiba Rashid Nishi, Shamim Shamsi, Md Abdullah Al Noman — Tue, 25 Jun 2024 00:00:00 +0000

A total of 19 fungal species were isolated from the seeds of selected rice varieties (BRRI dhan 90 to BRRI dhan 99) following Tissue planting method and Blotter method. The isolated fungi were Aspergillus niger, A. ochraceus, A. oryzae, A. tamarii, A. terreus, Chaetomium globosum, Cladosporium oxysporum, Colletotrichum gloeosporioides, Corynespora cassiicola, Curvularia lunata, Curvularia soli, Daldinia eschscholtzii, Fusarium solani, Penicillium oxalicum,Penicillium sclerotiorum, Pestalotiopsis guepinii, Pyricularia oryzae and Rhizopus stolonifer. Fourteen fungi were selected for molecular identification. Out of the 19 fungal isolates, 14 were confirmed up to species level through ITS sequence based molecular analysis. Among the isolated fungi Pnicillium sclerotiorum and Curvularia soli are the new record for Bangladesh. Association of Daldinia eschscholtzii with rice seeds is also recorded first time from world.

Bangladesh J. Plant Taxon. 31(1): 73-82, 2024 (June)

A Preliminary Study of the Pteridophytes, Gymnosperms, and Monocotyledons in the Chapainawabganj District’s Flora of Bangladesh

Muhammad Shahidul Islam, Saleh Ahammad Khan — Tue, 25 Jun 2024 00:00:00 +0000

This study demonstrates that the vascular flora (Pteridophytes, Gymnosperms, and Monocotyledons) of the Chapainawabganj district area consists of 247 species with two subspecies under 126 genera and 35 families. The pteridophytes and gymnosperms are represented by 19 and four species, respectively, whereas the monocotyledons (Liliopsida) are represented by 224 species. Poaceae, with 91 species, representing 36.84% of the flora, appears to be the largest family, followed by Cyperaceae 32, Araceae 19, Asparagaceae 12, and Arecaceae 11, which collectively constitute ca. 30% of this flora. Cyperus, comprising 18 species, is recorded as the largest genus, followed by Fimbristylis, Digitaria, Panicum, Bambusa, Urochloa, Dracaena, and Dioscorea. About 87.55% of this flora’s taxa are herbs, 4.42% are palms, 3.61% are shrubs, and the rest are bamboos and trees. Erect herbs, forming 61.04% of the flora, comprise the most common life form. In this flora, almost 74.30% of the taxa are native, and the rest, 25.70%, are exotic. It is found that nearly 74.70% of the taxa are wild, 14.06% are planted, and 11.24% are cultivated. About 23.29% of taxa commonly occur throughout all upazilas in this district. Most of the species are harboured in fallow lands, roadsides, gardens, and homesteads. All species of this district's flora are known to be economically useful. Most of its habitats and ecosystems are exposed to different threats. Adequate measures with effective management plans should be adopted and implemented for the sustainable use, improvement, and conservation of this precious flora.

Bangladesh J. Plant Taxon. 31(1): 83-99, 2024 (June)

Ethnomedicinal Plants for Cardiovascular Diseases Management in Manikganj District

Tue, 25 Jun 2024 00:00:00 +0000

The present research deals with the identification of ethnomedicinal plants used by the local people for curing cardiovascular diseases in Manikganj district, Bangladesh. The present study aimed to record and validate the ethnomedicinal knowledge used by the local people for cardiovascular disease (CVD) management in Manikganj district, Bangladesh using recent ethnobotanical survey methods. The record of 131 ethnomedicinal plant species with diverse use patterns reflected the traditional knowledge richness in the study area. Among the ethnomedicinal plants, 10 plant species, including Phyllanthus emblica L., Allium sativum L., Terminalia arjuna (Roxb. Ex DC.) Wight & Arn, Achyranthes aspera L., Terminalia chebula Retz., Allium cepa L., Adhatoda zeylanica Nees, Cinnamomum tamala Nees & Eberm, Cajanus cajan (L.) Millsp, and Ipomea aquatica Forssk, were cited most frequently by the local people. Among the disease categories, the highest Fic (factor of informant consensus) value was obtained in cardiac complaints, followed by blood purifiers, chest pain, high blood pressure, and antioxidants. In this research, 131 plant species were recorded, and 45 plants obtained the highest Fl (fidelity level) value of 100%. The members of the most common medicinal plants were from the families of Fabaceae, Amaranthaceae, Asteraceae, Cucurbitaceae, and Apocynaceae. This result provides baseline data to link the local population, including traditional health professionals and scientific communities, which could be significant in drug discovery and is very important for the sustainable development program and conservation management in Bangladesh.

Bangladesh J. Plant Taxon. 31(1): 101-121, 2024 (June)

Systematics and Morphometrics of the Subfamily Byttnerioideae Burnett in Bangladesh

Sheikh Sunzid Ahmed , M Oliur Rahman — Tue, 25 Jun 2024 00:00:00 +0000

Taxonomic revision and morphometrics are two crucial facets for the proper identification, updating of taxa, and strengthening phenetic relationships of angiosperms. This study focused on the systematics and morphometrics of the subfamily Byttnerioideae Burnett (Family Malvaceae) for the first time in Bangladesh, revealing eight taxa under seven genera, namely Abroma Jacq., Ayenia L., Guazuma Mill., Kleinhovia L., Melochia L., Theobroma L. and Waltheria L. These seven genera fall into three tribes: Byttnerieae, Theobromateae, and Hermannieae. Dichotomous bracketed keys to genera and species were generated. Detailed nomenclature, diagnostic characteristics, illustrations, representative specimens, notes on distribution and uses for each species were provided. Morphometrics study was conducted employing cluster and principal components analysis (PCA). Cluster analysis revealed close relationships between Theobromateae and Hermannieae tribes compared to Byttnerieae tribe in the form of UPGMA dendrogram. Similarity matrix revealed the highest affinity between Ayenia elegans Ridl. and Ayenia grandifolia (DC.) Christenh. & Byng. In the PCA analysis, the first two principal components explained approximately 82.26% cumulative variance. PCA-derived scatter and projection plots supported the topology and inter-relationships in the cluster analysis. These findings will enhance future conservation strategies, especially for the threatened and medicinally important taxa of Byttnerioideae in Bangladesh, and support molecular phylogenetic studies of the subfamily Byttnerioideae.

Bangladesh J. Plant Taxon. 31(1): 123-140, 2024 (June)

Morpho-Molecular Charactrization of Endophytic Fungi Associated With Aquilaria Malaccensis Lam.

Mehnaz Zafrin, Shamim Shamsi, Md Abdullah Al Noman — Tue, 25 Jun 2024 00:00:00 +0000

A total of 26 fungal isolates were identified from Aquilaria malaccensis Lam. (Agarwood). Among them Aspergillus flavus Link type-1, Aspergillus flavus Link type-2, Aspergillus niger Tiegh. type. 1, Aspergillus niger Tiegh. type. 2, Aspergillus sp. 1, Aspergillus sp. 2, Alternaria alternata (Fr.) keissl., Curvularia lunata (Wakker) Boedijn, Penicillum digitatum (Pers.) Sacc., Penicillium commune Thom, Penicillum italicum Wehmer, Penicillium sp. 1, Penicillium sp. 2, Penicillium sp. 3, Penicillium sp. 4, Eupenicillium sp. 1, Eupenicillium sp. 2, Sphaeropsis sp. Sacc. and Harknessia sp. Cooke. were identified by morphological analysis and Alternaria tenuissima (Kunze) Wiltshire, Alternaria palandui Ayyangar, Fusarium sporotrichioides Sherb., Lasiodiplodia theobromae (Pat.) Griffon & Maubl., Lasiodiplodia pseudotheobromae A.J.L. Phillips, A. Alves & Cronus, Diaporthe hongkongensis R.R. Gomes, Glienke & Cronus and Diaporthe perseae (Zerova) R.R. Gomes, Glienke & Cronus were identifed upto genus level by morphological analysis, which were later on identified and confirmed at species level by molecular analysis. Among these isolated fungal species- Alternaria palandui, Diaporthe hongkongensis, Diaporthe perseae and Lasiodiplodia pseudotheobromae have been reported as newly recorded species and Harknessia sp. and Sphaeropsis sp. were reported as new generic records for Bangladesh.

Bangladesh J. Plant Taxon. 31(1): 141-154, 2024 (June)

A Preliminary Inventory of Angiospermic Flora of Bagatipara Upazila, Natore, Bangladesh

Mohammmad Tarikul Hasan, Mohammad Zashim Uddin — Tue, 25 Jun 2024 00:00:00 +0000

Preparation of the country's flora is very challenging until baseline information on the flora of all district or upazila is available. The purpose of this inventory was to record angiosperm plant species available in the different habitats of Bagatipara upazila, which is located in the eastern part of Rajshahi district. The traditional taxonomic method was applied for plant sample collection in different seasons of the year 2022 and the identification of the collected samples. This research resulted in the recording of a total of 377 species in 92 families. Among them, 310 species were from Magnoliopsida, and 67 were from Liliopsida. Asteraceae and Poaceae were the leading families of Magnoliopsida and Liliopsida, respectively. One-fourth of the total plant species were exotic, and more than half were valuable medicinal species. Artocarpus lacucha, Bridelia stipularis, Callicarpa longifolia, Eranthemum pulchellum, Oroxylum indicum, Potentilla supina, Sterculia foetida, and Terminalia arjuna were locally found rare. Threats such as climate change, expansion of arable land and pisciculture, use of herbicides, over exploitation, clearing brushwood, and unplanned construction activities have been identified. The present study concludes that the floristic composition of this area is still rich, though the area is facing some threats. Therefore, we strongly recommend adopting effective and adequate measures for sustainable conservation and monitoring of the biodiversity of this area.

Bangladesh J. Plant Taxon. 31(1): 155-172, 2024 (June)

Systematic Position of Miyakea Integrifolia Miyabe & Tatew. In the Infrageneric Classification of Pulsatilla (Ranunculaceae): Palynological Challenges

A K M Golam Sarwar, Hideki Takahashi — Tue, 25 Jun 2024 00:00:00 +0000

Abstract not available.

Bangladesh J. Plant Taxon. 31(1): 187-195, 2024 (June)