Botanical results of the archbold expedition Nº 8 :
Christensen, Carl.
Botanical results of the archbold expedition Nº 8 : New and noteworthy papuan ferns . - Dinamarca - Brittonia ; Vol 2 Nº 4 .
Botanical results of the archbold expedition Nº 8 : New and noteworthy papuan ferns . - Dinamarca - Brittonia ; Vol 2 Nº 4 .