Fig. 2
From: New record of Dumontia contorta and D. alaskana (Dumontiaceae, Gigartinales) in Korea
Dumontia alaskana V. Tai, S.C. Lindstrom & G.W. Saunders. a Herbarium specimen. b Transverse section of the branch with hollow medulla. c Cortex consisting of progressively smaller cells outwards. d Cortical cell layers with tetrasporangium (arrowhead). e Tetrasporangium (arrowhead) produced from the inner cortical cell (arrow). Bars in a 2 cm, b 200 μm, c 20 μm, d 30 μm, and e 20 μm