50 JOURNAL OF THE 
by the fact that in the few localities where seed are pro- 
duced both sexes occur abundantly, though usually the 
plants are separated into more or less evident groups, as 
Miss Taylor’ observed at Columbia, 5S. C. 
If these disassociated groups of plants are of common 
origin, Darbya would seem to be, under its natural con- 
ditions, a plant which readily and rapidly propagates. 
In one place the underground stem seemed to have made 
as much as three feet of growth in one year. 
I have extended the distribution of Darya as far north 
as Halifax county, southern Virginia. Dr. Mohr has 
found it as far west as northern Alabama; and in Geor- 
gia it has been found as ‘ar south as Macon. The most 
eastern place where it has been found is near Willardville, 
Durham county, N. C. I have recorded trom my own 
observation thirteen stations for the plant in Virginia 
and the Carolinas, the numerou§ groups of plants around 
Salisbury and Chapel Hill, and similar groups at other 
places, being regarded as constituting a single station. 
At only three of these stations are seed known to be pro- 
duced. The staminate plants are much more abundant 
than the polygamous. 
As in the case of Commandra attachments are made to 
the roots of most trees and shrubs. The following have 
been verified to serve for Buckleya: Quercus alba, Q. 
minor, Q. velutina, Q. Marylandica, Q. nigra; Pinus 
echinata, P. Virginiana; Hamamelis; Vaccinium corym- 
bosum, V. vaccillans; Hicoria Carolinae-Septentrionalis, 
H. alba; Crataegus sp. ign.; Acer rubrum. It is probable 
that this list could be extended by carefully following 
the roots. | 
Darbya, 1am convinced, can be grown by planting the 
seed among trees or shruvs that will serve as hosts in a 
place where it will not be necessary to move it. If it is 
desired to move the plants the seed should be planted in 
10Gard. and Forest, 7: 94, 
