102 = Self-Incompatibility in Hermaphrodite Plants 
produced pods, the self-compatibility of this plant appeared to increase 
toward the end of the period of bloom. The plant was, however, some- 
what self-compatible from the first. 
Another plant bloomed from Aug. 29 until Oct. 24. Two small pods 
were obtained from two flowers selfed on the tenth day of bloom while 
16 flowers selfed on five earlier dates entirely failed; 51 flowers selfed 
on seventeen later dates, and including several of the last to bloom, all 
failed. : 
For another plant, of 38 flowers selfed on eleven different dates, there 
were 10 pods of scattering dates from the first day of bloom. 
A plant that bloomed for 80 days was tested in 45 flowers on eighteen 
dates. Only two small pods developed; one on the eighth, and one on 
the twenty-sixth day of bloom. 
Another plant gave 10 pods at scattering dates from the fifth day of 
bloom to the last date, 55 days later. 
A plant which bloomed for 63 days was tested in 51 flowers; two 
small pods were produced, one on second day of bloom afd one on the 
thirtieth. Twenty-two flowers selfed on later dates failed. 
The complete record for one plant may be here given with dates of 
pollinations, failures indicated by 0, and capsules by P. Aug. 6th, first 
flower, 0; 9th, 0,0; 12th, 0; 14th, 0, 0; 16th, 0, 0, 0; 19th, 0,0; 21st, 0, 9, ¥ 
24th, 0,0; Sept. 4th, 0,0; 6th, 0, 0, 0, 0, 0, 0, 0, 0, P; 9th, 0, 0, 0, 0, P; 
11th, 0,0, P, P,P; 14th, 0,0, 0,0, 0; 16th, 0, P, P; 22st, 0, 0; 24th, 0, 0, 0, 0; 
28th, 0, 0, 0; 30th, 0 and the last flower. This plant was feebly self- 
fertile but its self-compatibility was mid-seasonal rather than end- 
seasonal. 
Six sister plants of this series were grown to maturity in pots in & 
greenhouse, a treatment which greatly reduces the number of branches 
and flowers. These plants bloomed for periods of 9 to 51 days. Four 
were completely self-incompatible. Two were feebly self-compatible. 
For one of these the record is as follows: Aug. 10th, began bloom, 0, 9; 
14th, 0, 0,0; 16th, 0,0; 19th, 0,0; 22nd, 0, 0,0; Sept. Grd, 0, 0, 0, P; 
Ith, 0,0, P; 11th, 0,0, P ; 16th, 0, P. This plant exhibited a good case 
of end-season self-fertility. Another plant bloomed for only eighteen 
days and produced but 10 flowers, 6 of which were selfed with the 
following results: Sept. 3rd, 0; 9th, 0; 11th, P; 16th, P, P; 20th, 0. 
All the self-sterile plants produced fine pods for the greater number 
of flowers which bloomed in the open subject to cross-pollinations by 
insects and humming birds. Numerous tests for parthenocarpy an 
apogamy were made in self-fertile plants but in no case did pods form. 
