430 BROOKLYN BOTANIC GARDEN MEMOIRS 
cases of monomery with respect to this character, as indicated by 
the occurrence of monohybrid ratios in the F2 from crosses between 
plants respectively having and lacking the characteristic “B’’-lobing. 
TABLE I 
Composition of Fz Families which Show Monohybrid Ratios, from Crosses Involving 
the Presence of the B Factor in Wild Biotypes of Shepherd’s Purse 
Origin 
New Carlisle, Ohio 
Chicago, Illinois 
Cardiff, Wales 
Groningen, Holland 
Pedigree Numbers 
Pr 
Fi Fe 
040) 054 
056 06130 
(15361 
14359 |15362 
15363 
040 | 0514 
0693 07203 
tay eee 
| 
15367 
14361 15368 
15369 
15324 
14348 15325 
115326 
15327 
15328 
14350 | 2306 
/15331 
14352 |15332 
15333 
14353 15334 
15340 
14355 15341 
15342 
13219 |14523 
heteris 
AB 
sim- 
plex 
ab 
16 
72 
