Wilson: North American Peronosporales 
73 
that the species in question has other relationships than those 
indicated by its name. Indeed it is a true Phytophthora and ap- 
parently identical with P. Syringae. 
The complete synonomy of the fungus then becomes, Ovularia 
Syringae Berk. (1881), Phleophythora Syringae Klebh. (1905), 
Phytophthora Syringae (Klebh.) Klebh. (1909). Here is a 
nomenclatural tangle which is not strictly amenable to the rule 
of priority. The oldest name of the species is that given it by 
Berkeley, yet if Ovularia Syringae were to be transferred to 
Phytophthora the combination would be untenable as there is 
already an older Phytophthora Syringae, which is based on 
Phleophythora Syringae, a name which is untenable because it is 
antedated in the synonomy of the species. Perhaps this case 
comes under the “ nomina conservenda ” and so will not need to 
"be renamed, but be allowed to carry the specific name which 
Klebahn gave it. 
11. Phytophthora Nicotianae Van Breda de Haan 
Our information concerning this species is derived from the 
monographic treatment of the species by its author. It is a 
member of the cactorum group of species, i. e., its antheridium is 
of the normal type for the Oomycetes. So far it has been re- 
corded only from the East Indies. 
13. Phytophthora Faberi Maub. 
The literature of this species is quite extensive, yet there are a 
number of points concerning its life history which are far 
from clear. In the earlier papers the species is referred to as 
P. omnivora De Bary. Perhaps the first careful morphological 
study of the fungus was that of von Faber (1910) who ob- 
tained his material from Kamerun on cacao pods. He considers 
the fungus distinct from P. omnivora, but quite similar to that 
species. He describes the mycelium as being provided with 
‘haustoria and being both intercellular and intracellular, in ex- 
treme cases penetrating the seeds, but usually confined to the pods. 
The conidiophores are 150-200 /a high, bearing one or two conidia, 
which average 25X30 /a or rarely as large as 42 X 80 /a. The 
