246 



BOTANICAL GAZETTE 



[march 



Table VI shows under pod average (seed-weight for the 3 types 

 of pods) that the heaviest seeds are produced in 3-seeded pods and 

 the hghtest are found in 4-seeded pods. It is also shown that the 

 seeds in the basal position are lighter than elsewhere in the t>T)e of 

 pod considered, and that in the combined harvests the seed weights 



TABLE VI 

 Relation of position of harvested seeds in pod to weight: i. seeds from 



PODS without aborts and average for all 9 ROWS 



Both harvests. 

 Pod averages. . 

 First harvest . . 

 Pod average . . . 

 Second harvest 

 Pod average . . . 



-base 



2-tip 



0.338 0.366 



0.352 

 0.314 0.345 



0.329 

 0.379 0.402 



0.390 



3 -base 3 -middle 3 -tip 



- 



0.362 0.392 0.413 



0.391 

 0.344 0.37s 0.388 



0.369 



0.399 0.442 0.459 



0.434 



All 



0.38s 

 0.360 

 0.426 



make a continuous rising series from the base to the tip for all 

 types of pods. There is an exception in the records for separate 

 harvests, but it is among 4-seeded pods, a type not largely repre- 

 sented, and small deviations are here to be expected. It is noted 

 that the first harvest yields seeds of lighter weight than does the 

 second harvest, and with a single exception (4-seeded base) the 

 difference applies to each position in the pod. 



TABLE VII 



II. SEEDS FROM PODS WITH ABORTS AND AVERAGE FOR ALL g ROWS 



All 



Both harvests. 

 Pod averages . . 

 First harvest . . 

 Second harvest 



0.414 



0.377 

 0.453 



Table VII shows from the pod averages that the weight of the 

 seeds decreases from 2-ovuled pods to 4-ovuled pods, and that 

 the average weight of the seeds in 3-ovuled pods is very close to 

 the average for all seeds. The averages for both harvests show 

 that the lightest seeds are produced in the basal position, and that 

 there is in all types of pods a uniform increase from the weights in 

 the basal position to the weights in the tip position. In the first 

 harvest the seeds in each position in each type of pod are lighter 

 than the seeds for the same position in the second harvest. 



