Azolla

Some overlooked taxonomic characters of the root in Azolla

L. B. Cardenas, B. C. Tan and N. K. Torreta

Correspondence: Ravenel (Henry) and Engelmann (George)

Henry William Ravenel

Azolla as a green manure: use and management in crop production

Thomas A. Lumpkin and Donald L. Plucknett.

Weitere Beiträge zur Symbiose von Azolla und Anabaena

von Luise Wildemann

A primer on Azolla production & utilization in agriculture

M. Manzoor Khan.

Fotosintez i azotfiksat͡s︡ii͡a︡ v simbioticheskoĭ sisteme Azolla-Anabaena azollae

Nguen Khyu Tkhyok ; otvetstvennyĭ redaktor V.E. Semenenko.

A Tertiary Azolla from British Columbia

by Chester A. Arnold

Azolla en Afrique de l'Ouest =: Azolla in West Africa

C. Van Hove, H.F. Diara, P. Godard.

Über Azolla

von Eduard Strasburger

Ueber Azolla

Eduard Strasburger