BRIEPER ARTICLE $—. 
ADDITIONAL HOST PLANTS OF PLASMOPARA CUBENSIS. 
In view of the fact that no certain information is at hand concern- 
ing the original host of Plasmopara Cubensis (B. & C.) Humph., except 
that it was a cucurbitaceous plant from Cuba, some interest may attach 
to an enumeration of the many new host species of the order Cucurbi- 
tacez upon which it has been collected about Wooster during 1898. 
While preparing for a study of this fungus in the extensive cucum- 
ber pickle fields of this county (Wayne) in which it had been signally 
destructive in 1897, the writer secured seeds of most of the usual spe- 
cies of the order and planted them, together with the cultivated varieties 
of cucumbers, muskmelons, watermelons, pumpkins, gourds, and 
squashes, in the pathological garden of the Ohio Experiment Station. 
The species represented the genera Micrampelis, Sicyos, Abobra, Melo- 
thria, Cucurbita, Momordica, Cucumis, Lagenaria, Benincasa, Coccinea, 
Trichosanthes, Bryonopsis, Cyclanthera, and Mukia, according to the 
seedsman’s classification. A Madeira vine, Boussingaultia baselloides, 
was planted with the others. Unfortunately the seeds of Sicyos, 
Micrampelis, Cucumis perennis and Momordica elaterium did not ger- 
minate, and the plants of Adodra virtdifiora and Cucumis grossulariefor- 
mis perished before midsummer. Plants of Micrampelis lobata (Michx.) 
and Sicyos angulatus 1. growing along streams by diseased cucum- 
ber fields were attacked by Plasmopara Cubensis, the former very exten- 
sively, the latter quite rarely. As for the assembled cucurbits, all the 
surviving species except Benincasa cerifera and Cyclanthera explodens 
were more or less freely attacked by the same fungus. 
The Wayne county host plants for Plasmopara Cubensis are accord- 
ingly : 
Cucumis sativus, C. Melo, C. odoratissimus, C. erinaceus, Cucurbita pepo, 
C. Melopepo, C. verrucosa (?), Citrullus vulgaris, Lagenaria vulgaris, 
Coccinea Lndica, Bryonopsis laciniosa erythrocarpa, Mukia scabrella, 
Momordica balsamina, M. charantia, Melothria scabra, Trichosanthes 
Doe Sicyos angulatus, and Micrampelis (Echinocystis) lobata ; not 
1899 : 67 
