A morphological study of some members of the Genus pallavicinia /
Campbell, Douglas Houghton
A morphological study of some members of the Genus pallavicinia / by Douglas Houghton Campbell - Stanford University, Calif. : The University, 1914 - 44 p. : ill. ; 26 cm - Leland Stanford Junior University publications. University series .
A morphological study of some members of the Genus pallavicinia / by Douglas Houghton Campbell - Stanford University, Calif. : The University, 1914 - 44 p. : ill. ; 26 cm - Leland Stanford Junior University publications. University series .