J Integr Plant Biol. ›› 1989, Vol. 31 ›› Issue (3): -.

• Research Articles •    

Sphenophyllum plurifoliatum from the Upper Carboniferous Coal Ball of Shanxi, China

Zhao Li-ming   

Abstract:

Key words: Sphenophyllum plurifoliatum Williamson, Primary wood, Triarch, Exarch, Fascicular xylem, Phylogeny

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