In:
PhytoKeys, Pensoft Publishers, Vol. 210 ( 2022-10-05), p. 93-108
Abstract:
Lake Qinghai is an ancient brackish water lake in which several endemic diatom species have been discovered. In this study, a species of Diatoma is observed under light and scanning electron microscopy and described as new, Diatoma sinensis sp. nov. The living cells of D. sinensis always lie in girdle view due to the cell depth being much larger than valve width (3.3–8.8 vs. 2.0–3.0 μm). The valves of D. sinensis are characterized by their narrow, linear-lanceolate outline, with capitate to subcapitate apices, the presence of two rimoportulae, one at each apex, embedded in the last rib or located among striae and a 4:2 configuration of girdle bands in normal vegetative cells, with four bands assigned to the epivalve and two to the hypovalve. The new taxon is compared with similar species from the genera Diatoma and Distrionella .
Type of Medium:
Online Resource
ISSN:
1314-2003
,
1314-2011
DOI:
10.3897/phytokeys.210.90438
DOI:
10.3897/phytokeys.210.90438.figure1
DOI:
10.3897/phytokeys.210.90438.figure2
DOI:
10.3897/phytokeys.210.90438.figure3
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10.3897/phytokeys.210.90438.figure4
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10.3897/phytokeys.210.90438.figure5
DOI:
10.3897/phytokeys.210.90438.figure6
DOI:
10.3897/phytokeys.210.90438.figure7
Language:
Unknown
Publisher:
Pensoft Publishers
Publication Date:
2022
detail.hit.zdb_id:
2579891-1
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