Siderocelis oblonga (Naumann) Fott

Kim, Yong Jae, 2017, New records of coccoid green algae in Korea, Journal of Species Research 6 (1), pp. 42-50 : 45-46

Siderocelis oblonga (Naumann) Fott ( Fig. 3c, d )

References: Fott 1934: 117, fig. 5; Naumann 1921: 6, fig. 3; Komárek and Fott 1983: 566, pl. 163, fig. 3.

Basionym: Chlorella (Siderocelis) oblonga Naumann 1921 .

Synonym: Siderocelopsis oblonga (Naumann) Hindak.

Occurrence site: Chukdong reservoir fishery (WT 28.3℃, pH 8.3. EC 213 μs/cm).

Description: This species is unicellular and solitary, having an oval or ellipsoidal shape. The cell walls are relatively thick, hyaline to dark brown, and covered with granules on the surface. A chloroplast is located in the center of each cell, and contains a pyrenoid. The cells are 10-15 μm in length and 4-8 μm in width.

Distribution: Slovakia ( Hindak, 1988), Polend, Hungary ( Komárek and Fott, 1983), Deutschland ( Heynig, 2003).

Specimen: DAEJIN-20150603-5.

Remark: Siderocelis oblonga is firstly described by Naumann (1921) as Chlorella (Siderocelis) oblonga . Fott (1934) merged C. oblong into Siderocelis oblonga as a basionym. Hindak (1988) reported the new species Siderocelopsis oblonga as a basionym that is C. oblonga , and merged Siderocelis oblonga into Siderocelopsis oblonga as a synonym. Guiry and Guiry (2016) suggest that Siderocelis oblonga is currently accepted taxonomically and Siderocelopsis oblonga is regarded as a taxonomic synonym of Siderocelis oblonga . Therefore, it is classified to Siderocelis oblonga in this study. Naumann (1921), Fott (1934), Komárek and Fott (1983), and Hindak (1988) classified to the family Chlorellaceae , order Chlorococcales in class Chlorophyceae, but Guiry and Guiry (2016) replaced to the family Chlorellaceae , order Chlorellales in class Trebouxiophycaee. It needs to rearrangement that this species place into class Chlorophyceae or Trebouxiophyceae.

Figures

Fig. 3. a, b. Siderocystopsis fusca, c, d. Siderocelis oblonga, e-g. Siderocelis estheriana, h, i. Pachycladella umbrina. Scale bar is 10 μm.