Harris, Observations on the Physiology of Seed Development in Staphylea. \\ 



for the twenty shrubs of the 1906 series are presented in the 

 combination Table IX. Table 2 gives the constants. 



For Vps fifteen of the coefficients are negative in sign. Only 

 two deviate niore than + . 100 from 0, and the greatest is . 128. 

 So far as the magnitude of the individual constants is concerned, 

 there is little reason to siispect a correlation between p and v. 



Table IX. 



Combination Table showing the Correlation between the Position of 



the Fruit on the inflorescence and the nuniber of Seeds per Locule 



for twenty individual Shrubs. 



3 







1 



2 



3 



4 



5 



6 



ja 



1 :2l3'4l5 



1'2 3i4J5 



1 



2 



3 



4 5 



ll2'3'4 



li2 3 4 



12 3 



4 



11 



73 65 34 4 — 



60 43 20 4 — 



14| 5 2! 1 







3 l| 1 







! 



1 







12 



118 70 



14 4- 



72 46x0 2- 



UilO — 



— 



— 



10 - — 



— 



2 



- 



— 



— 



— 



— 



13 



60 52 



15: 2i- 



6833 9 2 — 



27 11 3 



1 



— 



14 4- 



— 



4 



1 



— 



1 



1 



1- 



— 



14 



77 60 



14|-|— 



6039 8; 



21 



lOl 5 



— 



— 



3 1 



— 



— 



1 



1 



— 



— 



— 



! 



— 



15 



85 65 



34! 2 2 



49 3418: 1- 



11 



9 5 



— 



1 



2 2 



— 



— 



— 



1 



— 



— 



— 



— .— 



— 



16 



88 54118^ 4 1 



5041 14 1 2 



11 



2 



5 



1 



— 



4 



2 



2 



— 



— 



— 



— 



— 



— 



, 



— 



17 



92 57 13! 



68 29 10 



16 



10 



3 



— 



— 



3 



— 



1 



— 



1 



— 



— 



— 



— 











— 



18 



70!74!28 - - 



38 42 20 



7 



8 



7 



— 



— 



2 



1 



2 



— 



— 



1 



— 



— 



— 



— 





— 



19 



88 6117 2- 



455018 1 - 



8 



2 



3 



— 



— 



2 1 



1 



— 



1 

















— 



20 



75 4315' 1 - 



52 40 19 2~ 



29 13' 6' 1 



— 



7^ 6 



5 



2 



4 



1 j 



4i- 







— 



21 



2122 14 7 — 



34 43 18 8 - 



.36120 12 4 



— 



1016 



5 



5 



10 



5! 5L 



3 2 







— 



22 



7549;i9 1- 



61 27 16 2 — 



19 



10, 8 — 



— 



8j 4 



2 



— 



2 



3 









— 



2.3 



9156il3 — — 



65 35 14 -i — 



13 



7 



3 — 



— 



2i 1 



— 



— 



— 



— 





— 



— 1 



— 



24 



78,44118 3 — 



53 27 12 2 - 



30 



12 



5 — 



— 



9 1 



3 



— 



1 



— 



1 



1 



_!_i_ 



— 



25 



60 44 30 4 - 



48139 16 2- 



16 



12 



4i 2 



— 



7 5 



3 



— 



3 



1 



— 



— 



1 1 1 



1 



26 



78 48 27 7 2 



58 33 13 3 1 



8 



7 



2 



2 



— 



4 5 



— 



— 



1 



— 



— 



— 



li^:— 



— 



27 



74 5919 4- 



68 30 13 2 - 



13 



7 



4 



— 



— 



5^- 



— 



— 



1 



— - 



— 



— 



li— i- 



— 



28 



86 4610 4- 



64 36 8 4 — 



25 



12 



2 



— 



— 



9 5 



1 



1 



2 



— 



— 



— 



— ' — i — 



— 



29 



77 52 24 5- 



5123 12 3 — 



2211 



3i— 



— 



6 4 



2 



1 



— 



3 



1 



— 







— 



30 



67155 



1 



28j 2- 



45,4317: 1 — 



1 1 1 1 



18 



12 



' 





~ 



5 



1 



— 



— 



— 



— 



— 



— 



— 







— 



And such a deviation as 5 plus to 15 minus from the expected 

 10 : 10 for signs is not very remarkable. 



The average for the twenty constants is — . 0310 + . 0088, 

 from which we see that the coefficient is only 3 . 89 times its 

 probable error and hence hardly statisticaUy trustworthy. 



Comparing the average relationship between position and 

 number of ovules per locule calculated for these same twenty in- 

 dividuals and published elsewhere, we find: 



Position and Ovules, Mean r = 

 Position and Seeds, Mean r = 



— .0733 + .0177. 



— . 0310 ± . 0088. 

 . 0423 + . 0197. 



If any importance is to be attached to these constants, the 

 number of ovules is more influenced by position on the inflorescence 

 than the number of seeds developing. A priori, I would have 

 expected the reverse, but we are treading entkely too near the 



