Batrachospermum (Batrachospermales, Rhodophyta) in Australia and New Zealand: New taxa and records in Sections Contorta and Hybrida
Royal Botanic Gardens Melbourne, Melbourne, Victoria, Australia Australian Systematic Botany
(Impact Factor: 1.08).
09/1999; 12(4). DOI: 10.1071/SB98023
Six species of Batrachospermum from Australia and New
Zealand have a twisted to coiled carpogonial branch and determinate
gonimoblast filaments, and are therefore referable to section
Contorta or Hybrida.
Batrachospermum australicum KÜtz. ex sp. nov. from
large rivers in tropical Northern Territory has a tightly 3-coiled carpogonial
branch; B. vittatum sp. nov. from tropical Northern
Territory has a characteristic longitudinal mid-whorl band of spermatangia;
and B. deminutum sp. nov. from a single locality in
eastern-central New South Wales has reduced whorls and long carpogonial
branches. The other three species are cosmopolitan in distribution:
B. virgatodecaisneanum Sirodot is widespread but
uncommon in temperate regions of both countries;
B. ambiguum Montagne is widespread and common in
tropical Australia; and B. globosporum Israelson is
restricted in Australia to near Brisbane in subtropical southern Queensland.
Available from: Orlando Necchi Jr
- "Taxonomic notes: This taxon was referred previously (Entwisle and Foard 1999, 2007) to K. ambigua (as Batrachospermum ambiguum), but with some qualifications (see Entwisle and Foard 1999): compared to contemporary reports of K. ambigua from elsewhere (Kumano 1990, Sheath et al. 1992), the Australian specimens have generally broader rhizoidal filaments, sometimes longer fascicle cells, shorter carpogonial branch cells and generally larger carposporangia. As was also reported in Entwisle and Foard (1999), the Australian specimens always have sessile trichogynes, contrary to at least some published reports of K. ambigua (Sheath et al. 1992) and confirmed in this study for a broader range of samples. "
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ABSTRACT: Species belonging to the newly established genus Kumanoa were sampled from locations worldwide. DNA sequence data from the rbcL gene, cox1 barcode region, and universal plastid amplicon (UPA) were collected. The new sequence data for the rbcL were combined with the extensive batrachospermalean rbcL data available in GenBank. Single gene rbcL results showed the genus Kumanoa to be a well‐supported clade, and there was high statistical support for many of the terminal nodes. However, with this gene alone, there was very little support for any of the internal nodes. Analysis of the concatenated data set (rbcL, cox1, and UPA) provided higher statistical support across the tree. The taxa K. vittata and K. amazonensis formed a basal grade, and both were on relatively long branches. Three new species are proposed, K. holtonii, K. gudjewga, and K. novaecaledonensis; K. procarpa var. americana is raised to species level. In addition, the synonymy of K. capensis and K. breviarticulata is proposed, with K. capensis having precedence. Five new combinations are made, bringing the total number of accepted species in Kumanoa to 31. The phylogenetic analyses did not reveal any interpretable biogeographic patterns within the genus (e.g., K. spermatiophora from the tropical oceanic island Maui, Hawaii, was sister to K. faroensis from temperate midcontinental Ohio in North America). Previously hypothesized relationships among groups of species were not substantiated in the phylogenetic analyses, and no intrageneric classification is recommended based on current knowledge.
Journal of Phycology 06/2012; 48(3). DOI:10.1111/j.1529-8817.2012.01141.x · 2.84 Impact Factor
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ABSTRACT: Changes since 1984 in scientific names of freshwater algae belonging to 253 taxa of Bacillariophyta, 82 of Chlorophyta (excluding desmids), 30 of Pyrrhophyta, 20 of Euglenophyta, and 19 of Rhodophyta are listed. Recent names are those cited in the list prepared for the “Species 2000: New Zealand” Symposium, February 2000, in Wellington, which will be pm of a global database. An additional 20 name changes of diatoms not in the main list are included at the end of the list.
New Zealand Journal of Botany 12/2001; 39(4):601-616. DOI:10.1080/0028825X.2001.9512763 · 0.70 Impact Factor
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