scholarly journals Hydrobiological studies within the tea gardens at Srimangal, Bangladesh. V. Desmids (Euastrum, micrasterias, actinotaenium and cosmarium)

1970 ◽  
Vol 13 (1) ◽  
pp. 1-20
Author(s):  
AKM Nurul Islam ◽  
Haseeb Md Irfanullah
Keyword(s):  
Species Diversity ◽  
Key Words ◽  
New Taxa ◽  
New Records ◽  
Aquatic Habitats ◽  
New Variety ◽  
Plant Taxon

Ninety-three desmid taxa belonging to four genera, namely Euastrum, Micrasterias, Actinotaenium and Cosmarium have been recorded from different aquatic habitats located within the tea gardens at Srimangal, Maulvi Bazar. Of these, 20 are described as new records for Bangladesh, including a new variety, E. substellatum Nordst. var. bangladeshicum Islam & Irfanullah var. nov. and a new forma, Cosmarium depressum (Näg.) Lund. var. apertum (Turner) Hirano fa. spinosum Islam and Irfanullah fa. nov. Key words: acidic habitats, species diversity, phytoplankton, desmids, new taxa, new records DOI: 10.3329/bjpt.v13i1.589 Bangladesh J. Plant Taxon. 13(1): 1-20, 2006 (June)

scholarly journals Hydrobiological studies within the tea gardens at Srimangal, Bangladesh. VI. Desmids (Xanthidium, Arthrodesmus, Staurodesmus and Staurastrum)

1970 ◽  
Vol 13 (2) ◽  
pp. 111-129
Author(s):  
AKM Nurul Islam ◽  
Haseeb Md Irfanullah
Keyword(s):  
Land Use ◽  
Species Diversity ◽  
Key Words ◽  
New Records ◽  
Algal Flora ◽  
Aquatic Habitats ◽  
Land Use Pattern ◽  
Monitoring Tools ◽  
Plant Taxon ◽  
Use Pattern

In this last instalment of the series, 78 desmid taxa belonging to four genera, namely Xanthidium (8 taxa), Arthrodesmus (3 taxa), Staurodesmus (11 taxa) and Staurastrum (56 taxa) have been recorded from different aquatic habitats located within the tea gardens at Srimangal, Maulvi Bazar. Of these, nine are described as new records for Bangladesh. An overall assessment of the algal flora of the study area reveals desmids as the single largest group consisting of 230 taxa out of 421 recorded algal taxa. The paper comments on the conservation potentials of the studied aquatic habitats as monitoring tools of land use pattern like tea-gardening. Key words: Acidic habitats, Species diversity, Conservation, Phytoplankton, New records DOI: 10.3329/bjpt.v13i2.583 Bangladesh J. Plant Taxon. 13(2): 111-129, 2006 (December)

scholarly journals Hydrobiological studies within the tea gardens at Srimangal, Bangladesh. IV. Desmids (17 genera)

1970 ◽  
Vol 12 (2) ◽  
pp. 49-62
Author(s):  
AKM Nurul Islam ◽  
Haseeb Md Irfanullah
Keyword(s):  
Key Words ◽  
New Records ◽  
Aquatic Habitats ◽  
Plant Taxon

Fifty nine taxa of desmids under 17 genera, namely Cylindrocystis, Netrium, Spirotaenia, Gonatozygon, Penium Closterium, Pleurotaenium, Triploceras, Triplastrum, Hyalotheca, Groenbladia, Bambusina, Teilingia, Sphaerozosma, Spondylosium, Onychonema and Desmidium have been recorded from different aquatic habitats located within the tea gardens at Srimangal, Maulvi Bazar. Eight taxa are described as new records for Bangladesh including two genera, namely, Cylindrocystis and Spirotaenia. Key words Desmids, acidic habitats, phytoplankton, new records DOI: 10.3329/bjpt.v12i2.602 Bangladesh J. Plant Taxon. 12(2): 49-62, 2005 (December)

scholarly journals Plantae uxpanapae II. Novedades en Violaceae y Scrophulariaceae

2017 ◽  
pp. 133
Author(s):  
Tom Wendt
Keyword(s):  
New Taxa ◽  
New Records ◽  
New Variety ◽  
First Time

New taxa and new records for México in Violaceae and Scrophulariaceae are presented , based on collections from the Zona de Uxpanapa, Veracruz-Oaxaca. Rinorea uxpanapana (Violaceae) is described as new, and R. deflexiflora is reported for the first time from México. In Scrophulariaceae, Uroskinnera hirtiflora var. breviloba is a new variety, and the asiatic weed Lindernia antipoda is new to México.

scholarly journals New records of phytoplankton for Bangladesh. 4. Chlorococcales

2008 ◽  
Vol 14 (2) ◽  
pp. 83-91
Author(s):  
Moniruzzaman Khondker ◽  
Rauf Ahmed Bhuiyan ◽  
Jenat Yeasim ◽  
Munirul Alam ◽  
R Bradley Sack ◽  
...  
Keyword(s):  
Key Words ◽  
New Records ◽  
Plant Taxon

This study presents three species from each of Schroederia, Monoraphidium and Ankistrodesmus, two species and one variety of Dictyosphaerium, two varieties of Pediastrum, and Tetraedron arthrodesmiforme var. contorta, Chlorotetraedron polymorphum, Myrmecia aquatica, Oocystis tainoensis, Nephrocytium spirale, Kirchneriella irregularis, Coelastrum indicum and Scenedesmus similagineus. These taxa have been reported from some ponds of Mathbaria of Pirojpur and Bakerganj of Barisal Districts in Bangladesh. Key words: Chlorococcales, New records, Phytoplankton, Ponds DOI: 10.3329/bjpt.v14i2.528 Bangladesh J. Plant Taxon. 14(2): 83-91, 2007 (December)

scholarly journals Hydrobiological studies within the tea gardens at Srimangal, Bangladesh. II. Algal flora (excluding Chlorophyceae)

1970 ◽  
Vol 12 (1) ◽  
pp. 33-52
Author(s):  
AKM Nurul Islam ◽  
Haseeb Md Irfanullah
Keyword(s):  
Key Words ◽  
New Records ◽  
Algal Flora ◽  
Plant Taxon

A total of 108 algal taxa belonging to 57 genera and nine classes (excluding Chlorophyceae), namely, Cyanophyceae 28, Euglenophyceae 37, Chloromonadophyceae 1, Charophyceae 3, Xanthophyceae 11, Chrysophyceae 4, Bacillariophyceae 20, Dinophyceae 2 and Rhodophyceae 2 have been recorded from some acidic habitats within the tea gardens at Srimangal, Maulvi Bazar. Of these 13 are new records for Bangladesh. Key words: Acidic habitats; diversity; phytoplankton; periphyton; new records DOI: 10.3329/bjpt.v12i1.609Bangladesh J. Plant Taxon. 12(1): 33-52, 2005 (June)

scholarly journals Hydrobiological studies within the tea gardens at Srimangal, Bangladesh. III. Chlorophyceae (excluding Desmids)

1970 ◽  
Vol 12 (2) ◽  
pp. 19-37 ◽  
Author(s):  
AKM Nurul Islam ◽  
Haseeb Md Irfanullah
Keyword(s):  
Key Words ◽  
New Records ◽  
Water Bodies ◽  
Acidic Water ◽  
Plant Taxon

A total of 83 algal taxa belonging to 40 genera of Chlorophyceae (excluding desmids) have been recorded from some acidic water bodies within the tea gardens at Srimangal, Maulvi Bazar. Of these 14 are new records for Bangladesh. Key words Acidic habitats, phytoplankton, periphyton, Chlorophyceae, new records, Bangladesh DOI: 10.3329/bjpt.v12i2.600 Bangladesh J. Plant Taxon. 12(2): 19-37, 2005 (December)

scholarly journals Pleurocarpous mosses of Bangladesh : Meteoriaceae and Pterobryaceae

1970 ◽  
Vol 12 (1) ◽  
pp. 53-57 ◽  
Author(s):  
Hamida Khatun ◽  
Syed Hadiuzzaman
Keyword(s):  
Key Words ◽  
New Records ◽  
Pleurocarpous Mosses ◽  
Plant Taxon ◽  
Pleurocarpous Moss

Barbella rufifolia (Thwait & Mitt.) Broth. (Family Meteoriaceae) and Pterobryopsis auriculata Dix. (Family Pterobryaceae) of Isobryales are described as new records for Bangaldesh. Key words: Pleurocarpous moss; Isobryales; Meteoriaceae; Pterobryaceae; Bangladesh DOI: 10.3329/bjpt.v12i1.611 Bangladesh J. Plant Taxon. 12(1): 53-57, 2005 (June)

scholarly journals New taxa of Elatostema (Urticaceae) from Thailand and India

1970 ◽  
Vol 18 (2) ◽  
pp. 149-152
Author(s):  
Hai Yan Bi ◽  
Zhi Rong Yang ◽  
Qi Lin
Keyword(s):  
New Species ◽  
New Taxa ◽  
Leaf Blade ◽  
Abaxial Surface ◽  
Chiang Mai ◽  
New Variety ◽  
Plant Taxon ◽  
One New Species

In this study, one new species and one new variety are described and illustrated. Elatostema intanondense Q. Lin (Urticaceae), collected from Doi Intanond of Chiang Mai in Thailand, is morphologically similar to E. subincisum Weddell, but differs by having obscure stipules (vs. conspicuous, linear-lanceolate, 5-6 mm long in E. subincisum), and elliptic to lanceolate nanophylls, 3-7 × 1.5-3.0 mm (vs. absent in E. subincisum). Elatostema ranongense Yahara var. glabroum Q. Lin, a new variety collected from Khasi Hills in Mawhplong of Meghalaya, India. This new variety has glabrous stems and glabrous leaves that differs from var. ranongense that having densely hirtellous stems, densely strigillose leaf blade on abaxial surface along veins.Keywords: Elatostema; E. intanondense; E. ranongense var. glabroum; Urticaceae.DOI: http://dx.doi.org/10.3329/bjpt.v18i2.9300Bangladesh J. Plant Taxon. 18(2): 149-152, 2011 (December)

scholarly journals Three new records of Aroids (Araceae) for Bangladesh

1970 ◽  
Vol 13 (2) ◽  
pp. 83-91
Author(s):  
Hosne Ara ◽  
Md Abul Hassan
Keyword(s):  
Key Words ◽  
Geographical Distribution ◽  
New Records ◽  
The Family ◽  
Plant Taxon ◽  
First Time

Three aroid species, namely Colocasia gigantea (Blume) Hook. f., Epipremnum pinnatum (L.) Engl. and Scindapsus perakensis Hook. f. under the family Araceae are recorded for the first time for Bangladesh. An updated nomenclature including important synonyms, illustrated descriptions, flowering and fruiting times, specimens examined, ecology, geographical distribution, occurrance within Bangladesh and uses for each species have also been provided. Key words: Colocasia gigantea, Epipremnum pinnatum, Scindapsus perakensis, New records, Araceae, Bangladesh DOI: 10.3329/bjpt.v13i2.581 Bangladesh J. Plant Taxon. 13(2): 83-91, 2006 (December)

scholarly journals Desmids from some selected areas of Bangladesh: 3. Genus Staurastrum Meyen (2)

1970 ◽  
Vol 13 (1) ◽  
pp. 41-47
Author(s):  
AKM Nurul Islam ◽  
Nasima Akter
Keyword(s):  
Key Words ◽  
New Records ◽  
Plant Taxon

The paper deals with 13 taxa belonging to Desmid genus Staurastrum Meyen from some selected areas of Bangladesh. Of these, eight taxa are new records for Bangladesh and two taxa are new to science. Key words: Desmids, Staurastrum, Bangladesh DOI: 10.3329/bjpt.v13i1.592 Bangladesh J. Plant Taxon. 13(1): 41-47, 2006 (June)

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