Bibliographic Detail
Sun, Z., Hasegawa, K. & Tanaka, J., 2008
Reference:
Sun, Z., Hasegawa, K. & Tanaka, J. (2008). A morphological study of Padina australis (Dictyotales, Phaeophyceae) from Hainan Island, China. Journal of Japanese Botany 83: 261-268.
Publication Date:
2008
Notes:
Zhongmin SUNa, Kazukiyo HASEGAWAb and Jiro TANAKA
Abstract:
Padina australis was collected from Hainan Island of China. Both sporophyte and gametophyte were found. The gametophyte is monoecious. This study is the first report on the gametophyte of P. australis in the Northern Hemisphere. Morphological and anatomical studies were carried out. Concentric hairlines alternately grow on both surfaces of a thallus, and reproductive structures occur along the upper side of dorsal hairlines. Sporangia are larger in size than gametangia, and oogonia and antheridia mix in the latitudinal direction of a thallus. Reproductive cells show the same sex in the longitudinal direction of a thallus, though some exceptions exist. The positional relationship between reproductive structures and hairlines is considered as a valuable taxonomic characteristic to classify species in Padina.
