Dendroceros japonicus

Dendroceros japonicus and Megaceros flagellaris (Takeda, R. et al., in Bryophytes. Their Chemistry and Chemical Taxonomy , Vol. 29 (Zinsmeister, H. D. and Mues, R. eds) pp. 201-207, Oxford University Press: New York, N.Y. (1990); Takeda, R. et al., Tetrahedron Lett . 31:4159-4162 (1990)), with the latter recently being classified as originating in the Silurian period (Graham, L. E., J. Plant Res . 109: 241-252 (1996)). More