Figure 2: Field-emission scanning electron microscopy of colonies of six Glaucocystis species.

Insets show higher magnification image of the mother cell wall surface (boxed area) at the same magnification. Scale bar, 10 μm and 2 μm (insets). Note that each colony is enclosed by a mother cell wall, showing gauze fabric-like fibrils globally (a,b,d,e) or tightly arranged fibrils (c,f ). (a) G. geitleri E.G.Pringsh. ex Tos.Takah. sp. nov. strain SAG 229-1. (b) G. nostochinearum Itzigs. ex Rabenh. strain SAG 16.98. (c) G. incrassata (Lemmerm.) Tos.Takah. stat. nov. strain SAG 229-2. (d) G. oocystiformis Prescott strain 126. (e) G. miyajii Tos.Takah. sp. nov. strain Thu10. (f ) G. bhattacharyae Tos.Takah. sp. nov. strain 118.