98  Self-Incompatibility in Hermaphrodite Plants 
One plant bloomed for 51 days; 18 flowers selfed produced 18 pods, 
none over 5cm. long; 6 pods contained seeds as follows: 1, 2, 3, 2, 1, 
and 3, all in flowers that opened during first 28 days of bloom ; no seeds 
were produced in 7 flowers self-pollinated during the last 23 days of » 
bloom. 
Another plant bloomed for 58 days, 8 flowers were selfed, all produced 
pods with seeds in 5 pods as follows: 1, 1, 3, 7, and 2, and in this case 
the first flower to open produced 1 seed and the very last 2 seeds. 
One plant produced 2 seeds in each of the first 2 flowers to open 
but none in the 7 flowers tested later. 
One plant gave 9 and 6 seeds in 2 pods from flowers that opened 
during the mid-period of bloom and none in flowers pollinated earlier 
or later. 
The other seven of the partially self-fertile plants produced capsules 
and seeds as follows: 13 capsules, 1 seed; 11 capsules, two with 1 seed 
each; 6 capsules, one with 2 seeds; 13 capsules, 1 seed; 8 capsules, 
1 seed; 8 capsules, 1 and 2 seeds; 5 capsules, 1 seed. In all of these 
the capsules bearing seed were from flowers that opened before the 
mid-date of bloom. 
The single plant that was classed as highly self-fertile bloomed for 
18 days and had only 6 flowers; three of these self-pollinated, gave fine _ 
pods bearing 26, (seed lost), and 15 seeds each. The first flower to open 
gave 26 seeds. 
One plant of this series was grown in isolation in the field. It grew 
vigorously, made a spread of nearly 8 feet in diameter, began bloom on 
June 21st, and was still blooming on Nov. 6th when freezing temperatures 
occurred. During the latter part of July and the first week of August 
as many as 100 flowers opened each day. Insect visitors were abundant 
during most of the flowering period and carried much pollen from flower 
to flower, besides the autonomous fall of pollen to stigmas. The plant 
was examined at intervals of about every third day and during the 
earlier and later portions of the blooming period all flowers opening on 
those dates were tagged. During the height of bloom many of the 
flowers (up to 35 per day) were tagged. A total of 928 flowers were 
tagged and examined later, and at least as many more opened. Not 
a single ovary enlarged to a size of more than 1°5 em. in length. The 
plant was completely self-sterile producing neither seeds nor empty 
pods. On four widely separated dates the plant was crossed with a 
as of Series 1, and every pistil produced a fine large pod with many 
seeds, 
