New Species of the Isolated Psaroniaceous Rachis from the Early Permian in China
Ning Xiang, Shi-Min Ma, Bao-Lin Tian, Shi-Jun Wang and Ming-Shan Zhang
New Species of the Isolated Psaroniaceous Rachis from the Early Permian in China
Ning Xiang, Shi-Min Ma, Bao-Lin Tian, Shi-Jun Wang and Ming-Shan Zhang
J Integr Plant Biol . 2008, (1): 119 -127 .  DOI: 10.1111/j.1744-7909.2007.00595.x