期刊
JOURNAL OF PHYCOLOGY
卷 55, 期 2, 页码 425-441出版社
WILEY
DOI: 10.1111/jpy.12831
关键词
amended description; Campylosira africana; diatoms; Extubocellulus cupola; Malcolm H; Giffen; Plagiogrammopsis castigatus; South Africa
资金
- National Science Centre (NCN)
- Cracow, Poland (Preludium 7) [2014/13/N/ST10/02811]
- National Science Centre (NCN)
- Cracow, Poland (Maestro) [2012/04/A/ST10/00544]
- National Centre for Research and Development (NCBR)
- Warsaw, Poland [PL-RPA/TemBio-DiaSA/02/2016]
New molecular and morphological insights are presented on Campylosira africana and two new species, Extubocellulus cupola sp. nov. and Plagiogrammopsis castigatus sp. nov. Species descriptions were based on LM/SEM micrographs and a data set with concatenated sequences of SSU, rbcL and psbC loci constructed from 56 cymatosiroid strains isolated from global geographic locations. Extubocellulus cupola is distinguished by a mesh-like marginal ridge and dome-shaped areolation, and P. castigatus, by a prominent marginal extension at the valve center. Campylosira africana, a species from South Africa described by Professor Malcolm Giffen, has never been documented through LM or SEM, which led some authors to place it in synonymy under Campylosira cymbelliformis. We confirm that C. africana is a distinct species and provide microphotographic documentation and DNA sequences. We present morphological evidence for the well-known cymatosiroid species Extubocellulus spinifer possessing complete pili, and we emend the generic description of Extubocellulus.
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