Results 141 to 150 of about 1,013 (177)

Description of new species Tolypella iranica (Charophyceae, Characeae) and update of the species distribution range of T. mongolica

Phytotaxa
A new dioecious species of Tolypella having both male and female plants was discovered in a historical herbarium collection by Haussknecht from Iran. This species described here as T. iranica sp. nov. was identified based on morphological characteristics
R. Romanov, V. Nikulin, A. Nikulin, L. Zhakova, Stepan D. Ivanov, Vera A. Stepanova, A. Efremov, A. Gontcharov   +7 more
semanticscholar   +1 more source

Lamprothamnium in Australia (Characeae, Charophyceae)

Australian Systematic Botany, 2013
Charophytes in the genus Lamprothamnium exhibit a large amount of diversity, particularly in the examples from Australia, although little of that variation has been recognised at species level in the past. The Australian members of the genus are revised here on the basis of extensive new collections, examination of specimens in herbaria and ...
openaire   +1 more source

New species Chara oryzae and a new section Corillionia of Chara (Charales, Charophyceae) from European Mediterranean rice fields

European journal of phycology, 2021
European paddy fields harbour a morphologically and genetically unusual charophyte that is distant from any other European species. The new species, Chara oryzae from Mediterranean rice fields, was described using an integrated approach, including ...
R. Romanov, A. Nikulin, V. Nikulin, A. Gontcharov   +3 more
semanticscholar   +1 more source

Tolypella mongolica (Charophyceae, Characeae): A new dioecious charophyte species from the center of Eurasia and implications for charophyte taxonomy, including the validation of T. porteri and the new combination for T. jwalae

Phytotaxa
A new dioecious species of Tolypella, T. mongolica sp. nov. from the section Tolypella, was described using an integrative taxonomy. It was found in three distant localities – shallows of a brackish small lake and a channel in the midland steppe in ...
R. Romanov, V. Nikulin, V. Vishnyakov, Bukhchuluun Tsegmid, A. Efremov, L. Zhakova, A. Gontcharov   +6 more
semanticscholar   +1 more source

An overview of Nitella (Characeae, Charophyceae) in Australia

Australian Systematic Botany, 2009
The genus Nitella Ag. in algal family Characeae is characterised by furcate (forked) branchlets, compressed oospores (i.e. oval in cross-section), terminal antheridia and a 10-celled coronula on the oogonium. Species of Nitella are submerged plants that grow in a variety of wetland and riverine habitats.
openaire   +1 more source

Ordovician marine Charophyceae fossils provide insights into land plant evolution

Nature Plants
Lijing Liu, Robert Riding
openaire   +3 more sources

Ultrastructure and phylogeny of the spermatozoid ofChara vulgaris (Charophyceae)

Plant Systematics and Evolution, 1997
At maturity, spermatozoids of the green algaChara vulgaris are biflagellated, contain little cytoplasm, and coil for approximately 2 1/2 gyres within the mother cell wall. The anterior of the cell contains an ovoid headpiece anchoring two slightly staggered basal bodies that are positioned above and directly in front of approximately 30 linearly ...
Duncan, Tracy M., Renzaglia, Karen S., Garbary, David J.   +2 more
openaire   +2 more sources

Etude isoenzymatique chez Chara globularis Thuillier (Charophyceae )

Le Journal de botanique, 1999
Isoenzymatic studies realized with Characeae (and with algae, in general) are few. The aim of the present work is to decide upon reliable methods on isoenzymatic electrophoresis applied to Chara globularis Thuillier. Samples of this species were used to test the activity of 16 enzymatic systems as well as the resolution degree obtained, by comparing ...
Simo Santalla, Pablo, Thuy Chu, Ngoc, Thierry, Dominique, Lambert-Servien, Elisabeth   +3 more
openaire   +2 more sources

SPERMATOGENESIS IN COLEOCHAETE PULVINATA (CHAROPHYCEAE): EARLY BLEPHAROPLAST DEVELOPMENT

American Journal of Botany, 1989
Transmission electron microscopy of serial thin sections was used to reconstruct several early developmental stages of the blepharoplast in Coleochaete pulvinata spermatids. These were compared to published studies of blepharoplast development in Charales and the closest relatives of ...
Linda E. Graham, Wyatt M. Repavich
openaire   +1 more source

NEW DATA ON FOUR RARE AND THREATENEDCHAROPHYTE SPECIES (CHARACEAE,CHAROPHYCEAE) FROM COASTAL WATERS OF ALBANIA

Journal of nature and science
The present paper provides data on the occurrence, distribution, and ecology of four characean species collected in the central and southern parts of Adriatic coastal area of Albania. The study area includes two of the most important wetland complexes in
Lefter Kashta, Marjol Meço, Ermelinda Mahmutaj   +2 more
semanticscholar   +1 more source