ASEXUAL SPORE MORPHOLOGY IN SPECIES OF PIPTOCEPHALIS

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Summary

Electron microscopic observation of surface replicas of the asexual spores of four species of Piptocephalis, reveals that three dry-spored forms, P. unispora, P. henjaniinii and P. virginiana bear patterns of warts and ridges whilst those of the slime-spored form P. freseniana, are relatively smooth. The transverse walls of spores of P. virginiana and P. freseniana are rough. Spore scars on the head cell of P. unispora apparently possess a central area which may represent a plug.

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