BIOMETRIC DATA IN CRINUM LONGIFOLIUM. 97 
DIAGRAM III. 
EMPIRICAL MEANS AND FITTED REGRESSION STRAIGHT 
LINE, SHOWING CLOSENESS OF INTERDEPENDENCE 
IN WEIGHT OF SEEDS FROM THE 
SAME FRUIT. 
a Wid 
LL 
A 
1 3 5 U 9 u 3 15 7 
Iv. SUMMARY AND CONCLUSIONS. 
1. The primary purpose of this paper is the recording 
of quantitative data on the inflorescence, fruit and seed of 
Crinum longifolium for future use in comparative studies 
of fertility and fecundity in plants. Such problems are 
immensely complex. Numerous forces are pulling, some- 
times in the same, sometimes in opposite directions. Another 
investigator may find his material differing in some impor- 
tant regards from that described here, because various 
