Astrephomene gubernaculifera Pocock, 1954

Kim, Jin Hee Kim and Han Soon, 2017, New records of freshwater algae from Korea, Journal of Species Research 6 (3), pp. 224-231 : 225

Astrephomene gubernaculifera Pocock ( Fig. 1A and B )

Reference: Yamagishi and Akiyama. 1984a. p. 5.

Description: Colonies ellipsoidal or spherical, 32 or 64 cells with two equal flagella and small non-reproductive cells consisting of 4 cells (of 64 cells) or 2 cells (of 32 cells) in posterior area. Cells almost spherical, surround­ ed the cellular sheaths with pentagonal or hexagonal shape in front view, adhered to each other and empty in central areas of colonies. Chloroplasts large cup­shaped, single stigma and many contractile vacuoles. Colonies 70 μm in diameter, reproductive cells up to 18 μm in diameter. Asexual reproduction formed daughter colonies.

Occurrence: Samrak Wetland, Samrak­dong, Sasang­gu , Busan (7, Aug. 2015) .

Figures

Fig. 1. A, B. Astrephomene gubernaculifera, C. Stylosphaeridium stipitatum, D, E. Chlorangiella polychlora. Scale bar=10 μm.