TY  - JOUR

T1  - Tetrads in sporangia and spore masses from the upper Silurian and Lower Devonian of the Welsh Borderland

JO  - BOT J LINN SOC

PY  - 1999/06/01

AU  - Edwards D

AU  - Wellman CH

AU  - Axe L

ED  - 

VL  - 130

IS  - 2

SP  - 111

EP  - 156

Y2  - 2024/12/22

ER  -