CONTENTS

Invited article
Kubitzki, K.
Major evolutionary advances in the history of green land plants ....1

Nozaki, H.
Origin and evolution of "plants" as deduced from genome information ....11

Tanaka, N.
Plant inventory research: Contributions to the flora of Myanmar ....21

Hakkinen, M.
Musa azizii, a new Musa species (Musaceae) from northern Borneo ....27

Shimizu, T.
Carex semihyalofructa, a new species of Carex sect. Rarae (Capitellatae) from Japan ....33

Funakoshi, H., W. J. Kress, J. Skornickova?, A. Liu & K. Inoue
Return from the lost: Rediscovery of the presumed extinct Leptosolena (Zingiberaceae) in the Philippines and its phylogenetic placement in gingers ....41

Aoki, K., M. Kato & N. Murakami
Mitochondrial DNA of phytophagous insects as a molecular tool for phylogeographic study of host plants ....55

Suzuki, T., I. Watanabe & T. Shiraiwa
Allozyme types of water fern Azolla japonica and its relatives (Azollaceae) growing in Japan ....71

Nakato, N. & M. Kato
Cytogeography of the Adiantum pedatum complex (Pteridaceae, subfamily Adiantoideae) ....85

Soejima, A., J.-H. Pak, T. Morita & M. Ito
Cytogeography of the Aster ageratoides complex (Asteraceae) in Korea ....97

Short communication
Kobayashi, T., J. Murata & K. Watanabe
Two new natural hybrids in Japanese Arisaema (Araceae) ....105