142 
size—figure 1 standing for the largest, 3 for medium, and 5 for 
the smallest, while 2 and 4 are midway from the middle size in 
their respective directions in the scale. 
- TABULATION OF ROOT SYSTEM OF WEEDS. 
Tap-Roots. Fascicled. Mixed. Totals. 
(1=10 I oO II 
{ 2= 5 4 4 13 
Perennials{ 3= 3 4 1 8 
oo 2 ° 2 
hon 0 fe) re) ° 
Total, 18 tI 5 34. 
f1=9 o o 9 
331 2 re) 3 
Biennials { 3=1 I I 5 
4=1 3) oO oe 
Me \s=o I ° Le 
Total, 12 4 I 17 
1= I oO oO 5 
2=16 o 3 19 
Annuals { 3= 9 6 2 17 
ot 4 2 8 
ae 4 o 4 
Total, 28 14 ery, ae 
pei 
: Grand Total, 1% 
Of those with the roots of the largest size, that is class |) 
there are of perennials eleven, biennials nine, and annuals one; 
and all of these are with tap-roots except one, and that is a pe™ 7 
ennial with a large mass of roots extending in all directions. The 
plant in question is none other than the live-for-ever (Sedum 
Telephium, L.,), which is able to propagate by means of its roots 
when broken into small pieces by implements for land cultivation. 
The ten perennial weeds with conspicuous tap-roots are: Sapo 
naria officinalis (bouncing bet), Hypericum perforatum, L. Gh 
John’s wort), Arctium Lappa, L. (burdock), Cnicus arvensis (L+) 4 
Hoffm. (Canada thistle), Taraxacum officinale, Webet (dande- 
nan eh ocynum cannabinum, L. (dogbane) Convolvulus arvensis, — 
L. (bindweed), Convolvolus sepium, L. (bracted bindweed), P” 
med pandurata (L.), Meyer, (man-of-the-earth), and Rume* a 
crispus, L., (dock). This is a big-rooted set of perennials named in 
the order that they appear in Gray’s Manual. The wild potato- 
