Formal description of Phytophthora novae-guineae sp. nov., a Clade 5 species

During a systematic survey for Phytophthora in forest and agricultural soils in Papua New Guinea, carried out in the 1970 s and 1980s, two Clade 5 species, identified as P. heveae and P. castaneae, were recovered. Subsequent genetic analysis of two of the isolates that had been identified as P. castaneae confirmed that these isolates were distinct and represented a new species, tentatively named Phytophthora sp. novaeguineae , a nomen nudum as there is no formal description. Based on data collected during the systematic survey, the species is now formally described as P. novae-guineae.

Automated summary

During a systematic survey in Papua New Guinea, two new Phytophthora species were discovered and named P. heveae and P. castaneae. Genetic analysis of one of the species confirmed it as a new species and it was named Phytophthora sp. novaeguineae.