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Compare Karayevia ploenensis var. gessneri

(Hust.) Bukht. 1999

Compare

Karayevia amoena and K. nitidiformis are more narrow in width, ends are more capitate, and a longitudinal hyaline line is present on the raphe valve. Karayevia gessneri has slightly wider valves. Note that Karayevia ploenensis has not been verified in the US.

LM scalebar = 10 µm
Karayevia ploenensis var gessneri LM6 Karayevia ploenensis var gessneri LM7 Karayevia ploenensis var gessneri LM1 Karayevia ploenensis var gessneri LM2 Karayevia ploenensis var gessneri LM3 Karayevia ploenensis var gessneri LM4 Karayevia ploenensis var gessneri LM5
Length Range
11-16 µm
Width Range
4.8-5.6 µm
Striae in 10 µm
14-16 in the center of raphe valve, 15-17 in the center of raphe valve, up to 20 at the ends

Karayevia amoena

(Hust.) Bukht. 2006

Karam Gs027563 6A Ed Karam Gs027563 6B Ed Karam Gs027563 2A Ed Karam Gs027563 4B Ed Karam Gs027563 3 Ed Karam Gs027563 5A Ed Karam Gs027563 5B Ed
Length Range
5.9-13.0 µm
Width Range
3.2-4.9 µm
Striae in 10 µm
22-26 on raphevalve, 18-20 on rapheless valve

Karayevia laterostrata

(Hust.) Bukht. 1999

Ih041690 Karlatero 1A Mo000019 Karlatero 1A Mo000019 Karlatero 1B Gsn23403 Kalaterostr 1A Gsn23519 2B Gsn23519 2A Gsn23519 1
Length Range
9-16 µm
Width Range
6-8 µm
Striae in 10 µm
14-18

Karayevia nitidiformis

(Lange-Bert.) Bukht. 2006

K Nitidiformis Holly29 10 K Nitidiformis Holly29 7 K Nitidiformis Holly29 4 K Nitidiformis Holly29 8 Copy Karayevia Nitidiformis 1 Karayevia Nitidiformis 3 K Nitidiformis Holly29 9
Length Range
13.0-14.7 µm
Width Range
4.2-4.3 µm
Striae in 10 µm
19 on raphe valve, 19-21 on rapheless valve