TY  - JOUR
T1  - On the Structure of Sigillaria scutellata, Brongn., and Other Eusigillarian Stems, in Comparison with Those of Other Palaeozoic Lycopods
JF  - Philosophical Transactions of the Royal Society of London. Series B, Containing Papers of a Biological Character (1896-1934)
VL  - 200
SP  - 133
EP  - 166
PY  - 1909/01/01/
UR  - http://dx.doi.org/10.1098/rstb.1909.0004
M3  - doi:10.1098/rstb.1909.0004
AU  - Arber, E.
AU  - Thomas, H.
ER  -