DISCUSSION OF ORNAMENTAL LIST. a 
DISCUSSION OF ORNAMENTAL LIST. 
(Continued from Page 12, January number.) 
Mr. Bryant (Illinois). There is a difference in shape between the 
green ash seed and the white ash. The wing is rather longerin the 
green ash. The varieties of ash run together a good deal. The root 
system of your ash is the same as that which would correspond 
with our tree that we call the blue ash. This is a strong grower, 
and, if anything, makes a larger tree than the green ash. The twigs 
_have the vigor of one-year-old shoots. \,ith us the black ashisa 
poor grower; I do not know how it would be here. The blue ash is 
a strong, vigorous grower and makes a handsome tree. I want to 
say a word about the hoptree. There is another variety, and if you 
were ordering trees in our part of the country, you would not gen- 
erally get this ironwood, or hopberry, or horn hop tree, but the tin- 
nia trifolium; it has quite a large bladder-shaped bud, and it is said 
they were used in the early days in place of hops. 
Mr. Harris: Is not that what is known as the bladderwort? 
Mr. Bryant (Illinois): Yes,itisthetinniatrifollum. It is some- 
times called the hopwood or hornberry; it is nearly the same thing; 
it is sometimes called the hopwood with us. 
Mr. Gibbs: The black ash, is, of course, a native of low and 
swampy places, and it would not be expected to do well at any other 
place, but still they do well in gravelly subsoil. About the hop- 
berry; I have a good many on my place, and when I first went there 
I was not acquainted with the hopberry, and at first sight I thought 
I had a lot of sugar maplesthere. The trunks looked like sugar 
maples, but when I looked up in the limbs I saw it was something 
else from what I first thoughtit was. I do not think they are quite 
as hardy as oaks. In those drouthy years I have had more of them 
die out than anything else I had, although many of the hardy trees 
like oaks and elms have given up, and I can see no reason for it ex- 
cept they have succumbed to the effect of the dry years. That is 
something you hardly ever see in the ash and elm. 
Mr. Jewett: I want to add my experience in regard to the hack- 
berry. I think the hackberry has not had sufficient attention paid 
to it. I have a place in Rice county that has been especially ex- 
posed to the heat of the sun, and I noticed my hackberry were in 
full leaf when the other trees had dropped their leaves. The piece 
of ground is next to a lake and has quite a fringe of timber around 
the lake, and the hackberry has killed out lessin the last eight to 
twelve years than anything else I havethere. The timber of the 
hackberry is an excellent timber and makes a good substitute for 
ash in the manufacture of anything requiring a straight grain, It 
is not as resistant as ash. The rock elm is one of the finest timbers 
we have for all kinds of wagon work. It makes ane felloes and is 
as tough as our eastern hemlock. 
Prof. Green: Talking about the ash this morning reminds me of 
the fact that we have great difficulty to make a clear distinction be- 
tween the white ash and the greenash. I have tried to make out 
this difference, and I have not been able to find out what was the 
