Abstract
Tests were carried out to compare Phytophthora cryptogea and P. drechsleri. As the results showed that the two species are very similar morphologically, as well as with regard to growth at different temperatures and in the presence of malachite green, it is suggested that they should be considered as one species. Phytophthora cryptogea Pethybridge & Lafferty as the older name has priority over P. drechsleri Tucker.

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