1892. Fungi of Wild and Cultivated Fiants. $14 
thrix, Fucus, Peronospora. The higher support dependent 
sporophytes, e. g., C&dogonium, Marchantia, Sphagnum. 
The highest are symbiotically parasitic upon sporophytic 
structures of their own species, e. g., the Isoetinea, Sela- 
ginellee and Siphonogama. These might be named respect- 
ively the Protogamophyta, Eugamophyta, and Metagamo- 
phyta. It is this last division that constitutes the principal 
part of the unexplored region. The accompanying diagram 
indicates the grouping of living things here suggested. 
University of Minnesota, Minneapolis. 
Some fungi common to wild and cultivated plants. 
BYRON D. HALSTED. 
€nemies to crops and showing the range of these parasites 
upon the surrounding wild plants. 
Steen with the garden vegetables it is easy to find illus- 
La cee every hand. Thus the lettuce mildew, Bremia 
: ctuce Reg. is found up to date upon no less than forty-one 
ac S of plants belonging to the same family as lettuce and 
nae related to it. Many of these hosts for the mildew are 
aia garden weeds and others inhabit the uncultivated 
The celery tust, Cercospora Apii Fr. now so destructive 
Ts, 1s Common to the carrot and parsnip also, and as 
ties we n oF of these abound without stint in many locali- 
dest ed not wonder that the garden plants are partially 
ae by this pest. 
that a 1s a mildew of the spinach, Peronospora effusa Gr. 
a : 
ane place for the mildew of their patrician cousin 
Na salad plant 
ean 
onspicuous| 
Upon severa 
Tust, Uromyces appendiculatus (P.) is one among a 
y destructive group of fungi that makes its home 
I species of wild beans. 
