1913] ELLIS—SEED PRODUCTION IN YUCCA 75 
These were divided about equally between the perfect black seeds 
and the infertile white seeds. The malformed seeds were few and 
were generally at the bottom of the pod. The individual data 


















TABLE If 
BOULDER PLANTS 
Perfect Imperfect Seeds Seeds in Number of | Seeds eaten | Per cent per 
seeds seeds eaten pod larvae per larva larva 
Plant 1 
13 128 60 321 2 30 9 
157 159 ° 316 I ° ° 
153 ° 318 I fo) ° 
Plant 2 
172 41 156 360 12 13 4 
118 210 46 374 2 23 6 
2 141 ° 203 I ° ° 
Plant 3 
102 139 256 3 46 18 
132 86 223 2 20 13 
Plant 4 
177 187 84 448 3 26 6 
245 72 17 334 2 8 2 
125 187 19 331 I 19 6 
150 ° 322 x ° ° 
Plant 5 
104 58 234 3 19 8 
151 166 I 218 I I 0.5 
Plant 6 
6 IOI 316 I Io1 32 
130 26 274 . 26 
Plant 7 
23 2 ° 284 I ° ° 
Plant 8 : 
23 96 27 355 2 13 4 
Plant 9 
125 105 95 325 5 19 6 
Plant 10 
158 26 320 2 13 4 
127 156 8 201 I 8 3 




WRAY PLANTS 







Plant rz ‘ 
2 QI 6 189 I 2 14 
63 12 ree 270 2 87 32 
27 18 169 214 3 56 26 
31 27 180 238 9 20 
76 5° 147 273 2 25 9 
5 50 64 168 2 25 15 
Plant 12 
I4r 41 252 2 20 8 
107 109 ° 216 I 9 
54 5 187 291 10 dee 7 
eh 

