TY  - JOUR
T1  - The Vegetative Morphology of Pistia and the Lemnaceae
JF  - Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character (1905-1934)
VL  - 91
IS  - 636
SP  - 96
EP  - 103
PY  - 1920/01/01/
UR  - http://dx.doi.org/10.1098/rspb.1920.0002
M3  - doi:10.1098/rspb.1920.0002
AU  - Arber, A.
ER  -