1898] - BRIEFER ARTICLES 53 
produced. A number of young plants may have their origin in series 
from a single propagating root. The buds are formed only where the 
root has attained to the proper distance from the surface of the ground 
for the thrifty growth of the young plants. Each young plant, while 
Gee. L. Clothier. Del. ad. nat 
Root propagation of /pomea leptophylla Torr. A, parent plant; 2, young plant ; 
G, propagating root; D, ground line. Reduced to jy natural size. 
still connected with its parent, sends down a fusiform fleshy root 
which penetrates the soil to a depth of three or four feet. 
The accompanying figure shows the fleshy root of an old plant con- 
nected with a young plant by one of its propagating roots. This 
plant had six other horizontal roots that were presumably propagation 
roots also. It was noticed that the propagating root under considera- 
tion was thinnest at a point two or three feet away from the young 
plant, and that it branched back of this point, probably giving rise to 
Propagating rootlets of other young plants. It took its origin from 
the mother plant about three feet below the surface of the ground.— 
GrorceE L. CLoruier, State Agricultural College, Manhattan, Kansas. 
NOTES ON LILAOPSIS. 
Mr. J. B.S. Norton, of the Missouri Botanical Garden has just 
called our attention to the fact that figs. 3 and g were transposed in 
a“ 
