PHYTOPHTHORA-HIBERNALIS AND P-SYRINGAE

A comparative morphological study of isolates of Phytophthora hibernal is and P. syringae confirmed that these are two distinct species, read ily distinguished by the easily deciduous, elongated ovoid to ellipsoi dal sporangia with long pedicels and the amphigynous and paragynous an theridia in varying proportions in the former and the nondecidous, bro adly ovoid, obpyriform to ellipsoidal sporangia and the predominantly paragynous antheridia in the latter. Confusions in literature concerni ng these two species can be attributable to misidentification and/or a cceptance of Tucker's treatment of P. hibernalis synonymous with P. sy ringae which had priority.