J Integr Plant Biol. ›› 1955, Vol. 4 ›› Issue (3): -.

• Research Articles •    

A Revision on the Life Cycle Diagram of Porlophyra tenera Kjellm

C. K. Tseng & T. J. Chang   

Abstract: A diagram showing the life cycle of Porphyra tenera Kjellm. was published about a year ago in this journal[1]. Further studies have shown that the Conchocelis-phase liberates its conchosperes only between 15℃ and 20℃[2]. It follows that the summer and autumn forms of the dwarf porphyras which appear only in water temperature higher than 20℃ cannot arise from these spores; the two lines leading from the conchospores to these two forms of the dwarf porphyra must therefore be deleted. This and a few other minor points make it necessary to prepare a revised diagram which is herewith presented.

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