190 DR. HARLEY ON THE PARASITISM OF THE MISTLETOE. 
CERASUS LAUROCERASUS. 
Rays narrow elliptical fasciculi, or plates, varying much in size, average goth of an 
inch deep and şğgth of an inch wide, composed of one or two rows of cells. Rays once 
or twice their width apart. 
CERASUS LUSITANICA. 
Rays very large, long elliptical fasciculi, some measuring rğgth of an inch X Taroth, 
others as much as th x both of an inch. Rays crowded. 
ROBINIA PSEUDACACIA. 
Rays very large elliptical fasciculi of cylindrical cells, goth of an inch deep and goth 
of an inch wide; cells arranged in two or three rows. Rays overlapping above and 
below, distant laterally twice their width. 
AMYGDALUS COMMUNIS. : 
The rays vary much in size, elliptical fasciculi 75th of an inch deep and j4j5oth of 
an inch wide, composed of two rows of largish cells, or plates the 3th of an inch deep 
and ,455th or şğpth of an inch wide, composed of two or three rows of cells. Rays 
very numerous, ellipses often continuous into plates, separated by about their width. 
PRUNUS DOMESTICA. 
Ray an elliptical fasciculus, goth of an inch deep and gşğgth of an inch wide, composed 
of three rows of large cylindrical cells. Rays often continuous by their ends, separated 
by once or twice their width. 
PYRUS COMMUNIS. 
Ray lamelliform, the goth of an inch deep and the 34;5th of an inch wide, composed 
of a single row of about twenty-seven cells. Rays separated by intervals equal to about 
three times their width. : 
MESPILUS GERMANICA. 
Ray an elliptical fasciculus, ;15th of an inch deep and 4455th of an inch wide, com- 
posed of two rows of cylindrical cells. Rays distant from each other once or twice their 
width, often confluent into long plates the 35th of an inch long. 
VITIS VINIFERA. 
Ray a long ellipse, the 4th of an inch deep, and the s}oth of an inch wide, composed 
of about eight rows of cells. Rays closely overlapping, and separated by intervals equal 
to their width, and less. 
