Phytophthora scadinavica
Phytophthora spp. in subclade 10c: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. scandinavica Ex-type CBS 149204. Gloria Abad, USDA S&T.

Phytophthora siskiyouensis
Phytophthora spp. in subclade 2b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. siskiyouensis Ex-type CBS122779 = S&T BL 56. Gloria Abad, USDA S&T.

Phytophthora siskiyouensis
Phytophthora spp. in subclade 2b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. siskiyouensis Ex-type CBS122779 = S&T BL 56. Gloria Abad, USDA S&T. 

Phytophthora sojae (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 7b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. sojae selected specimen CBS 149406 = S&T BL 56G. Gloria Abad, USDA S&T.

Phytophthora sojae (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 7b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. sojae selected specimen CBS 149406 = S&T BL 56G. Gloria Abad, USDA S&T.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G) colonies of a selected specimen grown for 7 days on (a) V8® Agar, (b) potato dextrose agar, and (c) malt extract agar; photo by Krysta Jennings and Leandra Knight, USDA-APHIS-PPQ

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) asexual (a–c) and sexual phases (d, e): (a) sporangium, (b, c) hyphal swellings, (d, e) oogonia with paragynous antheridia and plerotic, slightly aplerotic, and plerotic oopores; photos by G. Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) sexual phase (a-i): (a) oospore and hyphal swelling, (b-i) smooth-walled oogonia with paragynous antheridia and mostly aplerotic oospores; photos by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) asexual phase: sporangium; photo by G. Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen): hyphal swellings; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen): hyphal swellings; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: smooth-walled oogonium with paragynous antheridium and mostly aplerotic oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen): intercalary hyphal swellings; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: smooth-walled oogonium with paragynous antheridium and mostly aplerotic oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: hyphal swelling and oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: smooth-walled oogonium with paragynous antheridium and mostly aplerotic oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen): intercalary hyphal swellings; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

hytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: smooth-walled oogonia with paragynous antheridia and mostly aplerotic oospores; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: smooth-walled oogonium with paragynous antheridium and mostly aplerotic oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen): hyphal swellings and oospore in bottom of frame; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

Phytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: smooth-walled oogonia with paragynous antheridia and mostly aplerotic oospores; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora sojae (in progress - Abad et al. 2023b)

hytophthora sojae (CPHST BL 56G, selected specimen) sexual phase: hyphal swelling and oospore; photo by Gloria Abad, USDA-APHIS-PPQ.

Phytophthora stricta
Phytophthora spp. in Clade 17: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. stricta Ex-type NRRL 64261 = S&T BL 127. Gloria Abad, USDA S&T.

Phytophthora stricta
Phytophthora spp. in Clade 17: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. stricta Ex-type NRRL 64261 = S&T BL 127. Gloria Abad, USDA S&T.

Phytophthora stricta

Phytophthora stricta (CPHST BL 127) colonies of the ex-type grown for 7 days on (a) V8® Agar, (b) potato dextrose agar, and (c) malt extract agar; photo by Krysta Jennings and Leandra Knight, USDA-APHIS-PPQ

Phytophthora subarctica
Phytophthora spp. in subclade 10b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. subarctica Ex-type CBS 148850. Gloria Abad, USDA S&T.

Phytophthora subarctica
Phytophthora spp. in subclade 10b: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. subarctica Ex-type CBS 148850. Gloria Abad, USDA S&T.

Phytophthora syringae (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 8d: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. syringae selected specimen CBS 110161 = S&T BL 57G. Gloria Abad, USDA S&T.

Phytophthora syringae (in progress - Abad et al. 2023b)
Phytophthora spp. in subclade 8d: Morphological Tabular key (PDF) and Tabular key legends (PDF) in IDphy2 KEY SECTION. Notice the data of P. syringae selected specimen CBS 110161 = S&T BL 57G. Gloria Abad, USDA S&T.

Phytophthora syringae (in progress - Abad et al. 2023b)

Phytophthora syringae (CPHST BL 57G) colony grown for 7 days on potato dextrose agar

Phytophthora syringae (in progress - Abad et al. 2023b)

Phytophthora syringae (CPHST BL 57G) colony grown for 7 days on V8® Agar

Phytophthora tentaculata
Phytophthora spp. in subclade 1b: portion of the seven-loci ML phylogeny featuring the type cultures of 212 described species (by T. Bourret). Notice the position of P. tentaculata Ex-type CBS 412.96  = S&T BL 29. Gloria Abad, USDA S&T.